diff --git a/question18/2018_01_01_0315_Reflectance_17.tif b/question18/2018_01_01_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..29e69c2843766bebd531fe941c813d39622c98f1
Binary files /dev/null and b/question18/2018_01_01_0315_Reflectance_17.tif differ
diff --git a/question18/2018_01_01_0315_Reflectance_18.tif b/question18/2018_01_01_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..929ea51f37b1c23e8207dfc3927282c6c4d2fea5
Binary files /dev/null and b/question18/2018_01_01_0315_Reflectance_18.tif differ
diff --git a/question18/2018_01_01_0315_Reflectance_19.tif b/question18/2018_01_01_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..72b9d84ac5f59526bb15e3f35b588323f91567b1
Binary files /dev/null and b/question18/2018_01_01_0315_Reflectance_19.tif differ
diff --git a/question18/2018_01_01_0315_Reflectance_2.tif b/question18/2018_01_01_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4fee2d41f8045abaec76b0abcea0d937babaf9c1
Binary files /dev/null and b/question18/2018_01_01_0315_Reflectance_2.tif differ
diff --git a/question18/2018_01_01_0315_Reflectance_5.tif b/question18/2018_01_01_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a4b7f426757499057fe67dd60d7bab61e23aa49a
Binary files /dev/null and b/question18/2018_01_01_0315_Reflectance_5.tif differ
diff --git a/question18/2018_01_15_0330_Reflectance_17.tif b/question18/2018_01_15_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..22e6d7b856e90d4810a05891bb0dc834a456d4ec
Binary files /dev/null and b/question18/2018_01_15_0330_Reflectance_17.tif differ
diff --git a/question18/2018_01_15_0330_Reflectance_18.tif b/question18/2018_01_15_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4a1237bb126716bf6bbbada73d0dc21970021ced
Binary files /dev/null and b/question18/2018_01_15_0330_Reflectance_18.tif differ
diff --git a/question18/2018_01_15_0330_Reflectance_19.tif b/question18/2018_01_15_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..41dd0d009541b9100d436ba9375f12749de2e24d
Binary files /dev/null and b/question18/2018_01_15_0330_Reflectance_19.tif differ
diff --git a/question18/2018_01_15_0330_Reflectance_2.tif b/question18/2018_01_15_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..99772cde8bf6680f1fd0c7890858d44c1f9184a4
Binary files /dev/null and b/question18/2018_01_15_0330_Reflectance_2.tif differ
diff --git a/question18/2018_01_15_0330_Reflectance_5.tif b/question18/2018_01_15_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e3a3a94c9eb030845934d1e35a144f74b6f3adab
Binary files /dev/null and b/question18/2018_01_15_0330_Reflectance_5.tif differ
diff --git a/question18/2018_01_29_0340_Reflectance_17.tif b/question18/2018_01_29_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..46958e3aa89b132d6860602576fdddce8974cb0f
Binary files /dev/null and b/question18/2018_01_29_0340_Reflectance_17.tif differ
diff --git a/question18/2018_01_29_0340_Reflectance_18.tif b/question18/2018_01_29_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ad87802fbd04193fcdd31f65558909fb3e66b119
Binary files /dev/null and b/question18/2018_01_29_0340_Reflectance_18.tif differ
diff --git a/question18/2018_01_29_0340_Reflectance_19.tif b/question18/2018_01_29_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..545751d33f258b675d861228ca754cfd1ce973bc
Binary files /dev/null and b/question18/2018_01_29_0340_Reflectance_19.tif differ
diff --git a/question18/2018_01_29_0340_Reflectance_2.tif b/question18/2018_01_29_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a682b62b1b42eb0c479c0bb514108c38ef8eb374
Binary files /dev/null and b/question18/2018_01_29_0340_Reflectance_2.tif differ
diff --git a/question18/2018_01_29_0340_Reflectance_5.tif b/question18/2018_01_29_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b006450fc809f5b480e58f5f442a0072f7cfd1bf
Binary files /dev/null and b/question18/2018_01_29_0340_Reflectance_5.tif differ
diff --git a/question18/2018_02_12_0355_Reflectance_17.tif b/question18/2018_02_12_0355_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5e6b72604923df736a9aaf41e2d8b3401d48bea0
Binary files /dev/null and b/question18/2018_02_12_0355_Reflectance_17.tif differ
diff --git a/question18/2018_02_12_0355_Reflectance_18.tif b/question18/2018_02_12_0355_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..84101f65975f763ed4d021016e4b3ea096b99baa
Binary files /dev/null and b/question18/2018_02_12_0355_Reflectance_18.tif differ
diff --git a/question18/2018_02_12_0355_Reflectance_19.tif b/question18/2018_02_12_0355_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b7cb57625729bf904e3a29f7f64969a61990b9d5
Binary files /dev/null and b/question18/2018_02_12_0355_Reflectance_19.tif differ
diff --git a/question18/2018_02_12_0355_Reflectance_2.tif b/question18/2018_02_12_0355_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8d785de7cb344ce289ef6bfcbf498f10c40067fe
Binary files /dev/null and b/question18/2018_02_12_0355_Reflectance_2.tif differ
diff --git a/question18/2018_02_12_0355_Reflectance_5.tif b/question18/2018_02_12_0355_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2c9398c71c88b45e1d5dc081a368ccf0cf5068a3
Binary files /dev/null and b/question18/2018_02_12_0355_Reflectance_5.tif differ
diff --git a/question18/2018_02_26_0405_Reflectance_17.tif b/question18/2018_02_26_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..869ded588501b1556ba35c6a238a188ae60633d1
Binary files /dev/null and b/question18/2018_02_26_0405_Reflectance_17.tif differ
diff --git a/question18/2018_02_26_0405_Reflectance_18.tif b/question18/2018_02_26_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b8a61d5c642d6e1e8237dd193070b85f83a12ad7
Binary files /dev/null and b/question18/2018_02_26_0405_Reflectance_18.tif differ
diff --git a/question18/2018_02_26_0405_Reflectance_19.tif b/question18/2018_02_26_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d40aeedb35cc54723991d97fd7fdabffbc2e14ef
Binary files /dev/null and b/question18/2018_02_26_0405_Reflectance_19.tif differ
diff --git a/question18/2018_02_26_0405_Reflectance_2.tif b/question18/2018_02_26_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4e89098bf917854fb79018cd6a16b183cf829eea
Binary files /dev/null and b/question18/2018_02_26_0405_Reflectance_2.tif differ
diff --git a/question18/2018_02_26_0405_Reflectance_5.tif b/question18/2018_02_26_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..39d26149569791f3134bb6c0bc741670d4de64c2
Binary files /dev/null and b/question18/2018_02_26_0405_Reflectance_5.tif differ
diff --git a/question18/2018_03_12_0240_Reflectance_17.tif b/question18/2018_03_12_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c6b6166ed945d05c481427e9190b7755002313fe
Binary files /dev/null and b/question18/2018_03_12_0240_Reflectance_17.tif differ
diff --git a/question18/2018_03_12_0240_Reflectance_18.tif b/question18/2018_03_12_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ab3f5aceaab05b65159274ba71a1ed395995786f
Binary files /dev/null and b/question18/2018_03_12_0240_Reflectance_18.tif differ
diff --git a/question18/2018_03_12_0240_Reflectance_19.tif b/question18/2018_03_12_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..35a33da257b544f12b0a609a075c6c611a5258a0
Binary files /dev/null and b/question18/2018_03_12_0240_Reflectance_19.tif differ
diff --git a/question18/2018_03_12_0240_Reflectance_2.tif b/question18/2018_03_12_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3d9a779c07597409f00d818ab1b3e63ca5a70a65
Binary files /dev/null and b/question18/2018_03_12_0240_Reflectance_2.tif differ
diff --git a/question18/2018_03_12_0240_Reflectance_5.tif b/question18/2018_03_12_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..792d3613e3314b3f04afecc07dfe55ef9d47bec8
Binary files /dev/null and b/question18/2018_03_12_0240_Reflectance_5.tif differ
diff --git a/question18/2018_03_26_0250_Reflectance_17.tif b/question18/2018_03_26_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..015798b391bf49e0c68e9feb5023b8a33df1d599
Binary files /dev/null and b/question18/2018_03_26_0250_Reflectance_17.tif differ
diff --git a/question18/2018_03_26_0250_Reflectance_18.tif b/question18/2018_03_26_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..abef14995439b9c6f767b47b92abb6daea2551ef
Binary files /dev/null and b/question18/2018_03_26_0250_Reflectance_18.tif differ
diff --git a/question18/2018_03_26_0250_Reflectance_19.tif b/question18/2018_03_26_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1a2bfa65d8aacd944f984a53955842bb469a0c2e
Binary files /dev/null and b/question18/2018_03_26_0250_Reflectance_19.tif differ
diff --git a/question18/2018_03_26_0250_Reflectance_2.tif b/question18/2018_03_26_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..dab49cf95bafc2663228c87bfc4ed1dfde5ad519
Binary files /dev/null and b/question18/2018_03_26_0250_Reflectance_2.tif differ
diff --git a/question18/2018_03_26_0250_Reflectance_5.tif b/question18/2018_03_26_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cfcd39b6abc0658b7030aab73b0603d55aecb1ab
Binary files /dev/null and b/question18/2018_03_26_0250_Reflectance_5.tif differ
diff --git a/question18/2018_04_09_0305_Reflectance_17.tif b/question18/2018_04_09_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..48ad700490990b02d311c372cfc370223d5ca697
Binary files /dev/null and b/question18/2018_04_09_0305_Reflectance_17.tif differ
diff --git a/question18/2018_04_09_0305_Reflectance_18.tif b/question18/2018_04_09_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5ab8f4b2856f0de65d8d9170b84debb2cfa2cb9a
Binary files /dev/null and b/question18/2018_04_09_0305_Reflectance_18.tif differ
diff --git a/question18/2018_04_09_0305_Reflectance_19.tif b/question18/2018_04_09_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..671828bc1652b707bf63d7e5d39767441b54faf4
Binary files /dev/null and b/question18/2018_04_09_0305_Reflectance_19.tif differ
diff --git a/question18/2018_04_09_0305_Reflectance_2.tif b/question18/2018_04_09_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..15ad0da3655447b23b87876c0b1f6218f715e843
Binary files /dev/null and b/question18/2018_04_09_0305_Reflectance_2.tif differ
diff --git a/question18/2018_04_09_0305_Reflectance_5.tif b/question18/2018_04_09_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e6b48fcb6ac4dc7d0d4018589204fdd0ee82b1b5
Binary files /dev/null and b/question18/2018_04_09_0305_Reflectance_5.tif differ
diff --git a/question18/2018_04_23_0315_Reflectance_17.tif b/question18/2018_04_23_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0a9d44cf264e5643b4455d3001271d50fc2c8857
Binary files /dev/null and b/question18/2018_04_23_0315_Reflectance_17.tif differ
diff --git a/question18/2018_04_23_0315_Reflectance_18.tif b/question18/2018_04_23_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..acea4011b026ed052f62037048ba09b6cb345594
Binary files /dev/null and b/question18/2018_04_23_0315_Reflectance_18.tif differ
diff --git a/question18/2018_04_23_0315_Reflectance_19.tif b/question18/2018_04_23_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..02365a07cd646c8754e7b530931cff2882453f8e
Binary files /dev/null and b/question18/2018_04_23_0315_Reflectance_19.tif differ
diff --git a/question18/2018_04_23_0315_Reflectance_2.tif b/question18/2018_04_23_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7d738c9a3480bbff1c85d8f30e3bacdd0d199c82
Binary files /dev/null and b/question18/2018_04_23_0315_Reflectance_2.tif differ
diff --git a/question18/2018_04_23_0315_Reflectance_5.tif b/question18/2018_04_23_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a5deb22c4da7b5620ff422e48b9f4f3f7a37519c
Binary files /dev/null and b/question18/2018_04_23_0315_Reflectance_5.tif differ
diff --git a/question18/2018_05_07_0330_Reflectance_17.tif b/question18/2018_05_07_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3c477e6ee9db922a1820ce9849e5746184b8a9dd
Binary files /dev/null and b/question18/2018_05_07_0330_Reflectance_17.tif differ
diff --git a/question18/2018_05_07_0330_Reflectance_18.tif b/question18/2018_05_07_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6a21c681c6df6564fc2cbcfce08da80577d6375d
Binary files /dev/null and b/question18/2018_05_07_0330_Reflectance_18.tif differ
diff --git a/question18/2018_05_07_0330_Reflectance_19.tif b/question18/2018_05_07_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..95edbccdf4e5a71f7dc578fa9ec3c7b975541613
Binary files /dev/null and b/question18/2018_05_07_0330_Reflectance_19.tif differ
diff --git a/question18/2018_05_07_0330_Reflectance_2.tif b/question18/2018_05_07_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..79e624555d856475d25201e459cca1be707dc88c
Binary files /dev/null and b/question18/2018_05_07_0330_Reflectance_2.tif differ
diff --git a/question18/2018_05_07_0330_Reflectance_5.tif b/question18/2018_05_07_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2f2d7ec35ae5b86a1384bbfa606402055b15a811
Binary files /dev/null and b/question18/2018_05_07_0330_Reflectance_5.tif differ
diff --git a/question18/2018_05_21_0340_Reflectance_17.tif b/question18/2018_05_21_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d3c3aba116864452b926825d6fcb4be1ce01686b
Binary files /dev/null and b/question18/2018_05_21_0340_Reflectance_17.tif differ
diff --git a/question18/2018_05_21_0340_Reflectance_18.tif b/question18/2018_05_21_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9fe4b54b6abff5e45b87463214274f27435683eb
Binary files /dev/null and b/question18/2018_05_21_0340_Reflectance_18.tif differ
diff --git a/question18/2018_05_21_0340_Reflectance_19.tif b/question18/2018_05_21_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ec44a7640116bff3eaa617ed7593572d5f44b872
Binary files /dev/null and b/question18/2018_05_21_0340_Reflectance_19.tif differ
diff --git a/question18/2018_05_21_0340_Reflectance_2.tif b/question18/2018_05_21_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cebd5b134c1db61f4b7908224df487135dd0a7e7
Binary files /dev/null and b/question18/2018_05_21_0340_Reflectance_2.tif differ
diff --git a/question18/2018_05_21_0340_Reflectance_5.tif b/question18/2018_05_21_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f5bfbf3774c44e2cc52af7ee3d7507b500138e5e
Binary files /dev/null and b/question18/2018_05_21_0340_Reflectance_5.tif differ
diff --git a/question18/2018_06_04_0355_Reflectance_17.tif b/question18/2018_06_04_0355_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7821af73eab8be27ac32e74729f43da2891eb6b0
Binary files /dev/null and b/question18/2018_06_04_0355_Reflectance_17.tif differ
diff --git a/question18/2018_06_04_0355_Reflectance_18.tif b/question18/2018_06_04_0355_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8fed6996b7ef96bde7e9cb6d99a3688aae94a816
Binary files /dev/null and b/question18/2018_06_04_0355_Reflectance_18.tif differ
diff --git a/question18/2018_06_04_0355_Reflectance_19.tif b/question18/2018_06_04_0355_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ab5eed1edef0c758510a1ed223889f9bd454a200
Binary files /dev/null and b/question18/2018_06_04_0355_Reflectance_19.tif differ
diff --git a/question18/2018_06_04_0355_Reflectance_2.tif b/question18/2018_06_04_0355_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..39ec72ef8e26a1a2bc8ace4503216ebc4a7061e8
Binary files /dev/null and b/question18/2018_06_04_0355_Reflectance_2.tif differ
diff --git a/question18/2018_06_04_0355_Reflectance_5.tif b/question18/2018_06_04_0355_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1adfae70ab67f6e67955ba339e60fa52dcf374ba
Binary files /dev/null and b/question18/2018_06_04_0355_Reflectance_5.tif differ
diff --git a/question18/2018_06_18_0405_Reflectance_17.tif b/question18/2018_06_18_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2b4db835482a0396afa2931e084748a338707aeb
Binary files /dev/null and b/question18/2018_06_18_0405_Reflectance_17.tif differ
diff --git a/question18/2018_06_18_0405_Reflectance_18.tif b/question18/2018_06_18_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e9cdb9c2224b56e8894f8487bd65650d60629424
Binary files /dev/null and b/question18/2018_06_18_0405_Reflectance_18.tif differ
diff --git a/question18/2018_06_18_0405_Reflectance_19.tif b/question18/2018_06_18_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ae42ccf670d663219bbda31e89ae367d488f296b
Binary files /dev/null and b/question18/2018_06_18_0405_Reflectance_19.tif differ
diff --git a/question18/2018_06_18_0405_Reflectance_2.tif b/question18/2018_06_18_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c6699ae51c3ec5b8c81be3b32fafab282474d13b
Binary files /dev/null and b/question18/2018_06_18_0405_Reflectance_2.tif differ
diff --git a/question18/2018_06_18_0405_Reflectance_5.tif b/question18/2018_06_18_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..443168313378d471d4dd03c6e5306d2f8f774776
Binary files /dev/null and b/question18/2018_06_18_0405_Reflectance_5.tif differ
diff --git a/question18/2018_07_02_0240_Reflectance_17.tif b/question18/2018_07_02_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c32640c49fa2914be776cbd1bf3557b9d025af78
Binary files /dev/null and b/question18/2018_07_02_0240_Reflectance_17.tif differ
diff --git a/question18/2018_07_02_0240_Reflectance_18.tif b/question18/2018_07_02_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0c629f1727217cb07a3e55881d3bff467b31e697
Binary files /dev/null and b/question18/2018_07_02_0240_Reflectance_18.tif differ
diff --git a/question18/2018_07_02_0240_Reflectance_19.tif b/question18/2018_07_02_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8fbbc3a1587dc9db179d5c0ab61187a1643b9b9b
Binary files /dev/null and b/question18/2018_07_02_0240_Reflectance_19.tif differ
diff --git a/question18/2018_07_02_0240_Reflectance_2.tif b/question18/2018_07_02_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..97fe437b71d478e79438c968334e40316d490ed0
Binary files /dev/null and b/question18/2018_07_02_0240_Reflectance_2.tif differ
diff --git a/question18/2018_07_02_0240_Reflectance_5.tif b/question18/2018_07_02_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..61070e5c3511a5c765a0ad965b1cd3c90afe8354
Binary files /dev/null and b/question18/2018_07_02_0240_Reflectance_5.tif differ
diff --git a/question18/2018_07_16_0255_Reflectance_17.tif b/question18/2018_07_16_0255_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..934e324fc7948dd3f8e914e3ddddb8442f6d8976
Binary files /dev/null and b/question18/2018_07_16_0255_Reflectance_17.tif differ
diff --git a/question18/2018_07_16_0255_Reflectance_18.tif b/question18/2018_07_16_0255_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9e19b64ac1311fa4cf752a85cbdb4fc273c15124
Binary files /dev/null and b/question18/2018_07_16_0255_Reflectance_18.tif differ
diff --git a/question18/2018_07_16_0255_Reflectance_19.tif b/question18/2018_07_16_0255_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f69df6191337cf1a7bc88563ad72d2e067bb2d61
Binary files /dev/null and b/question18/2018_07_16_0255_Reflectance_19.tif differ
diff --git a/question18/2018_07_16_0255_Reflectance_2.tif b/question18/2018_07_16_0255_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..022fd02f96d266617e9bca8734da8fc57743b8a2
Binary files /dev/null and b/question18/2018_07_16_0255_Reflectance_2.tif differ
diff --git a/question18/2018_07_16_0255_Reflectance_5.tif b/question18/2018_07_16_0255_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..33f13680d93d766ef3fc713708875889946d7cde
Binary files /dev/null and b/question18/2018_07_16_0255_Reflectance_5.tif differ
diff --git a/question18/2018_07_30_0305_Reflectance_17.tif b/question18/2018_07_30_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d34beec434538d66605c5a3d28be16958130457d
Binary files /dev/null and b/question18/2018_07_30_0305_Reflectance_17.tif differ
diff --git a/question18/2018_07_30_0305_Reflectance_18.tif b/question18/2018_07_30_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..dc64f312fd9126266f92dafed3c7be3063af1d52
Binary files /dev/null and b/question18/2018_07_30_0305_Reflectance_18.tif differ
diff --git a/question18/2018_07_30_0305_Reflectance_19.tif b/question18/2018_07_30_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fc4105d1c8e6a4d4c99f7e97cea7975ded04e2e7
Binary files /dev/null and b/question18/2018_07_30_0305_Reflectance_19.tif differ
diff --git a/question18/2018_07_30_0305_Reflectance_2.tif b/question18/2018_07_30_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4274571762840aad94879eb4e75fa5e8f8048fae
Binary files /dev/null and b/question18/2018_07_30_0305_Reflectance_2.tif differ
diff --git a/question18/2018_07_30_0305_Reflectance_5.tif b/question18/2018_07_30_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ed8d2d25bddc4551b3f31db9802776c568ee3d07
Binary files /dev/null and b/question18/2018_07_30_0305_Reflectance_5.tif differ
diff --git a/question18/2018_08_13_0315_Reflectance_17.tif b/question18/2018_08_13_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a5d6c8fd8d22e51ee9886ad6607963037d0d1750
Binary files /dev/null and b/question18/2018_08_13_0315_Reflectance_17.tif differ
diff --git a/question18/2018_08_13_0315_Reflectance_18.tif b/question18/2018_08_13_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b44ca3eca112dc50f02817877f883e80b02ded7e
Binary files /dev/null and b/question18/2018_08_13_0315_Reflectance_18.tif differ
diff --git a/question18/2018_08_13_0315_Reflectance_19.tif b/question18/2018_08_13_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..02240433ed197e61c0174d66355be40d426ba7a4
Binary files /dev/null and b/question18/2018_08_13_0315_Reflectance_19.tif differ
diff --git a/question18/2018_08_13_0315_Reflectance_2.tif b/question18/2018_08_13_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..951b98a3d30ee20c98f26abb8ad71f8fb5ebd6ef
Binary files /dev/null and b/question18/2018_08_13_0315_Reflectance_2.tif differ
diff --git a/question18/2018_08_13_0315_Reflectance_5.tif b/question18/2018_08_13_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6bf89d859a942d3221f5b3de391e4faafbc67557
Binary files /dev/null and b/question18/2018_08_13_0315_Reflectance_5.tif differ
diff --git a/question18/2018_08_27_0330_Reflectance_17.tif b/question18/2018_08_27_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cc65909518ba8f139b6eed39b479caae03ba275c
Binary files /dev/null and b/question18/2018_08_27_0330_Reflectance_17.tif differ
diff --git a/question18/2018_08_27_0330_Reflectance_18.tif b/question18/2018_08_27_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a124a9e2f0c3ce01b58e15b928ad0f8e3c95338d
Binary files /dev/null and b/question18/2018_08_27_0330_Reflectance_18.tif differ
diff --git a/question18/2018_08_27_0330_Reflectance_19.tif b/question18/2018_08_27_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f2c247522ea151e0b51ce19361254a05a4194680
Binary files /dev/null and b/question18/2018_08_27_0330_Reflectance_19.tif differ
diff --git a/question18/2018_08_27_0330_Reflectance_2.tif b/question18/2018_08_27_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a32934f77bcee1dfcbc4def6f4a3026429727561
Binary files /dev/null and b/question18/2018_08_27_0330_Reflectance_2.tif differ
diff --git a/question18/2018_08_27_0330_Reflectance_5.tif b/question18/2018_08_27_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cd99f3003193a696bc3b793c1fe2f134c051a611
Binary files /dev/null and b/question18/2018_08_27_0330_Reflectance_5.tif differ
diff --git a/question18/2018_09_10_0340_Reflectance_17.tif b/question18/2018_09_10_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b7760789ee79eac61cbf7b1da0aecd1258353cc4
Binary files /dev/null and b/question18/2018_09_10_0340_Reflectance_17.tif differ
diff --git a/question18/2018_09_10_0340_Reflectance_18.tif b/question18/2018_09_10_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f5b7606d81008d892afe49dafac0093a544e6295
Binary files /dev/null and b/question18/2018_09_10_0340_Reflectance_18.tif differ
diff --git a/question18/2018_09_10_0340_Reflectance_19.tif b/question18/2018_09_10_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f62af8bbfe6855beccfbd0afda72294206bc412a
Binary files /dev/null and b/question18/2018_09_10_0340_Reflectance_19.tif differ
diff --git a/question18/2018_09_10_0340_Reflectance_2.tif b/question18/2018_09_10_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1a551d28993a0998a2cf5343d5c336f84ca33101
Binary files /dev/null and b/question18/2018_09_10_0340_Reflectance_2.tif differ
diff --git a/question18/2018_09_10_0340_Reflectance_5.tif b/question18/2018_09_10_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..dc2ba9f2f40f4356046f0e953d71c3ab72702dde
Binary files /dev/null and b/question18/2018_09_10_0340_Reflectance_5.tif differ
diff --git a/question18/2018_09_24_0355_Reflectance_17.tif b/question18/2018_09_24_0355_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..102e78c305c09b1146168c0852e86695990cb094
Binary files /dev/null and b/question18/2018_09_24_0355_Reflectance_17.tif differ
diff --git a/question18/2018_09_24_0355_Reflectance_18.tif b/question18/2018_09_24_0355_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0709529d3f8e490d5d007142a169e8427a327c55
Binary files /dev/null and b/question18/2018_09_24_0355_Reflectance_18.tif differ
diff --git a/question18/2018_09_24_0355_Reflectance_19.tif b/question18/2018_09_24_0355_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2c3775cdb83caf564988c2adf3cfea7d18829819
Binary files /dev/null and b/question18/2018_09_24_0355_Reflectance_19.tif differ
diff --git a/question18/2018_09_24_0355_Reflectance_2.tif b/question18/2018_09_24_0355_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9a609385aaf89a4df19a64377123fccca0df3e1e
Binary files /dev/null and b/question18/2018_09_24_0355_Reflectance_2.tif differ
diff --git a/question18/2018_09_24_0355_Reflectance_5.tif b/question18/2018_09_24_0355_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f64efb820601f34ba477fe8376c0d1eef691aa44
Binary files /dev/null and b/question18/2018_09_24_0355_Reflectance_5.tif differ
diff --git a/question18/2018_10_08_0405_Reflectance_17.tif b/question18/2018_10_08_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fd3c831342716c8c920c2a241bc227278d79330e
Binary files /dev/null and b/question18/2018_10_08_0405_Reflectance_17.tif differ
diff --git a/question18/2018_10_08_0405_Reflectance_18.tif b/question18/2018_10_08_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bd035df9c9fd0ffbe806064bb34d32176505e4d8
Binary files /dev/null and b/question18/2018_10_08_0405_Reflectance_18.tif differ
diff --git a/question18/2018_10_08_0405_Reflectance_19.tif b/question18/2018_10_08_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a4e87d0989f1797f59936095b300507a48b7e620
Binary files /dev/null and b/question18/2018_10_08_0405_Reflectance_19.tif differ
diff --git a/question18/2018_10_08_0405_Reflectance_2.tif b/question18/2018_10_08_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cb54da8f68d0a8337d3e26a0b8e9b0477839e081
Binary files /dev/null and b/question18/2018_10_08_0405_Reflectance_2.tif differ
diff --git a/question18/2018_10_08_0405_Reflectance_5.tif b/question18/2018_10_08_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9b7ca5b4d6d62031e08eecb3fccf0a49990dedad
Binary files /dev/null and b/question18/2018_10_08_0405_Reflectance_5.tif differ
diff --git a/question18/2018_10_22_0240_Reflectance_17.tif b/question18/2018_10_22_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..75b29466647cc9addc6d7da4708ee523fd6524a3
Binary files /dev/null and b/question18/2018_10_22_0240_Reflectance_17.tif differ
diff --git a/question18/2018_10_22_0240_Reflectance_18.tif b/question18/2018_10_22_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e5d800d173811518810e61076a9a1dc43535dc36
Binary files /dev/null and b/question18/2018_10_22_0240_Reflectance_18.tif differ
diff --git a/question18/2018_10_22_0240_Reflectance_19.tif b/question18/2018_10_22_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fac5c0212842721632540065b40c9c5a392d918a
Binary files /dev/null and b/question18/2018_10_22_0240_Reflectance_19.tif differ
diff --git a/question18/2018_10_22_0240_Reflectance_2.tif b/question18/2018_10_22_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7387caae364dc64b09d95627568070b48b6ae626
Binary files /dev/null and b/question18/2018_10_22_0240_Reflectance_2.tif differ
diff --git a/question18/2018_10_22_0240_Reflectance_5.tif b/question18/2018_10_22_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fcf0e76f852847b7ab3d085ca18e1213c5596b94
Binary files /dev/null and b/question18/2018_10_22_0240_Reflectance_5.tif differ
diff --git a/question18/2018_11_05_0250_Reflectance_17.tif b/question18/2018_11_05_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5108117153fb3bf0764dc5ab268f0e726ef92acb
Binary files /dev/null and b/question18/2018_11_05_0250_Reflectance_17.tif differ
diff --git a/question18/2018_11_05_0250_Reflectance_18.tif b/question18/2018_11_05_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6269d13cf7be8970558a2492bfb29449eb7194e3
Binary files /dev/null and b/question18/2018_11_05_0250_Reflectance_18.tif differ
diff --git a/question18/2018_11_05_0250_Reflectance_19.tif b/question18/2018_11_05_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..688be553477dee54642321c45bfc895d35377fcc
Binary files /dev/null and b/question18/2018_11_05_0250_Reflectance_19.tif differ
diff --git a/question18/2018_11_05_0250_Reflectance_2.tif b/question18/2018_11_05_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0c439f32fb16eecd4788c3ddca82c404e5f99b23
Binary files /dev/null and b/question18/2018_11_05_0250_Reflectance_2.tif differ
diff --git a/question18/2018_11_05_0250_Reflectance_5.tif b/question18/2018_11_05_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..04fa224bdfc46b157bbfe51bb7456e4d6b8fb042
Binary files /dev/null and b/question18/2018_11_05_0250_Reflectance_5.tif differ
diff --git a/question18/2018_11_19_0305_Reflectance_17.tif b/question18/2018_11_19_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8bea298525aec49f500d6c54585dfdc536d71d32
Binary files /dev/null and b/question18/2018_11_19_0305_Reflectance_17.tif differ
diff --git a/question18/2018_11_19_0305_Reflectance_18.tif b/question18/2018_11_19_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a3abbc4da88e1f6350581ed88dc1898d63518952
Binary files /dev/null and b/question18/2018_11_19_0305_Reflectance_18.tif differ
diff --git a/question18/2018_11_19_0305_Reflectance_19.tif b/question18/2018_11_19_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c7e26c78fb5b8c259bdc945d8b70e67c50a9a811
Binary files /dev/null and b/question18/2018_11_19_0305_Reflectance_19.tif differ
diff --git a/question18/2018_11_19_0305_Reflectance_2.tif b/question18/2018_11_19_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..44a6f3fb40562cee29039810ca02cc1a15766fcd
Binary files /dev/null and b/question18/2018_11_19_0305_Reflectance_2.tif differ
diff --git a/question18/2018_11_19_0305_Reflectance_5.tif b/question18/2018_11_19_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ac38321bcc546461062d6d9303551b61bda70424
Binary files /dev/null and b/question18/2018_11_19_0305_Reflectance_5.tif differ
diff --git a/question18/2018_12_03_0315_Reflectance_17.tif b/question18/2018_12_03_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9b3051be24ec0968eb373c7580b047e4e4f6a29c
Binary files /dev/null and b/question18/2018_12_03_0315_Reflectance_17.tif differ
diff --git a/question18/2018_12_03_0315_Reflectance_18.tif b/question18/2018_12_03_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bdd7fbe9573362d38a5cc6c715c75461a5232551
Binary files /dev/null and b/question18/2018_12_03_0315_Reflectance_18.tif differ
diff --git a/question18/2018_12_03_0315_Reflectance_19.tif b/question18/2018_12_03_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..323027c5e949a41ac2d25249573fba8188b5156f
Binary files /dev/null and b/question18/2018_12_03_0315_Reflectance_19.tif differ
diff --git a/question18/2018_12_03_0315_Reflectance_2.tif b/question18/2018_12_03_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4df5bdf78df42fdd35170fa1bbb551d754dc5a5e
Binary files /dev/null and b/question18/2018_12_03_0315_Reflectance_2.tif differ
diff --git a/question18/2018_12_03_0315_Reflectance_5.tif b/question18/2018_12_03_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..58b55ad9c9f10941fd6d5adfde87333b5c699fea
Binary files /dev/null and b/question18/2018_12_03_0315_Reflectance_5.tif differ
diff --git a/question18/2018_12_17_0330_Reflectance_17.tif b/question18/2018_12_17_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0d31434211588d0abf68b71a1dcf3576834dc34d
Binary files /dev/null and b/question18/2018_12_17_0330_Reflectance_17.tif differ
diff --git a/question18/2018_12_17_0330_Reflectance_18.tif b/question18/2018_12_17_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b21639dd32d046b701fd64fea2f57c18361328be
Binary files /dev/null and b/question18/2018_12_17_0330_Reflectance_18.tif differ
diff --git a/question18/2018_12_17_0330_Reflectance_19.tif b/question18/2018_12_17_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5f84c0098bf81a39ecfd478ddff9892961a3e98a
Binary files /dev/null and b/question18/2018_12_17_0330_Reflectance_19.tif differ
diff --git a/question18/2018_12_17_0330_Reflectance_2.tif b/question18/2018_12_17_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..35ca8a66595169e60749407a4dde6289948b79e7
Binary files /dev/null and b/question18/2018_12_17_0330_Reflectance_2.tif differ
diff --git a/question18/2018_12_17_0330_Reflectance_5.tif b/question18/2018_12_17_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..51a740bf1f9afe72d746e2425cad81eb382427ec
Binary files /dev/null and b/question18/2018_12_17_0330_Reflectance_5.tif differ
diff --git a/question18/2018_12_31_0340_Reflectance_17.tif b/question18/2018_12_31_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..97920a617997ae1c927a4a1671ae8c95c4814b3e
Binary files /dev/null and b/question18/2018_12_31_0340_Reflectance_17.tif differ
diff --git a/question18/2018_12_31_0340_Reflectance_18.tif b/question18/2018_12_31_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..81b53912298e671f9ad47dff2bd0c545117c9d8d
Binary files /dev/null and b/question18/2018_12_31_0340_Reflectance_18.tif differ
diff --git a/question18/2018_12_31_0340_Reflectance_19.tif b/question18/2018_12_31_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1faf97b989a476bf62298a1bb2d26b3b4d4a1b70
Binary files /dev/null and b/question18/2018_12_31_0340_Reflectance_19.tif differ
diff --git a/question18/2018_12_31_0340_Reflectance_2.tif b/question18/2018_12_31_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..917137f85254588b9d85972b441f5fd17cbe1918
Binary files /dev/null and b/question18/2018_12_31_0340_Reflectance_2.tif differ
diff --git a/question18/2018_12_31_0340_Reflectance_5.tif b/question18/2018_12_31_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..68d43c1ab9720d465956bbb09d89a2d54c4fd875
Binary files /dev/null and b/question18/2018_12_31_0340_Reflectance_5.tif differ
diff --git a/question18/2019_01_01_0245_Reflectance_17.tif b/question18/2019_01_01_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..424abe9fcc2572f391745d0fbc38b848d369d4ab
Binary files /dev/null and b/question18/2019_01_01_0245_Reflectance_17.tif differ
diff --git a/question18/2019_01_01_0245_Reflectance_18.tif b/question18/2019_01_01_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ac0210ab1a3ed52a92e5b70af7b6093a3452fb82
Binary files /dev/null and b/question18/2019_01_01_0245_Reflectance_18.tif differ
diff --git a/question18/2019_01_01_0245_Reflectance_19.tif b/question18/2019_01_01_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..270d5a9cc35fdb8cebd38f40a7bb6f0395d978d1
Binary files /dev/null and b/question18/2019_01_01_0245_Reflectance_19.tif differ
diff --git a/question18/2019_01_01_0245_Reflectance_2.tif b/question18/2019_01_01_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f5ce467aab2d888e3d671be0f24139aa905f9da2
Binary files /dev/null and b/question18/2019_01_01_0245_Reflectance_2.tif differ
diff --git a/question18/2019_01_01_0245_Reflectance_5.tif b/question18/2019_01_01_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b57a4d49ee2afc5dd85237486fee99535af42b90
Binary files /dev/null and b/question18/2019_01_01_0245_Reflectance_5.tif differ
diff --git a/question18/2019_01_15_0255_Reflectance_17.tif b/question18/2019_01_15_0255_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..24b91a63e1ac2d43097301fa63fbc2018972f2d6
Binary files /dev/null and b/question18/2019_01_15_0255_Reflectance_17.tif differ
diff --git a/question18/2019_01_15_0255_Reflectance_18.tif b/question18/2019_01_15_0255_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0ead7855c197d2a6adcb70198b9feb5675a82d96
Binary files /dev/null and b/question18/2019_01_15_0255_Reflectance_18.tif differ
diff --git a/question18/2019_01_15_0255_Reflectance_19.tif b/question18/2019_01_15_0255_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7d2a6f8843c95143cbc75f4b30e5ffae8285e243
Binary files /dev/null and b/question18/2019_01_15_0255_Reflectance_19.tif differ
diff --git a/question18/2019_01_15_0255_Reflectance_2.tif b/question18/2019_01_15_0255_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2ab824969b61114149a9b8c63dce13d876b0d15b
Binary files /dev/null and b/question18/2019_01_15_0255_Reflectance_2.tif differ
diff --git a/question18/2019_01_15_0255_Reflectance_5.tif b/question18/2019_01_15_0255_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e5941290637fbce7bd91518fae1cae13e1b4d05b
Binary files /dev/null and b/question18/2019_01_15_0255_Reflectance_5.tif differ
diff --git a/question18/2019_01_29_0310_Reflectance_17.tif b/question18/2019_01_29_0310_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d566a2f484407084ec4a39201f93f44ebcdd7326
Binary files /dev/null and b/question18/2019_01_29_0310_Reflectance_17.tif differ
diff --git a/question18/2019_01_29_0310_Reflectance_18.tif b/question18/2019_01_29_0310_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3c1b713d8cbce524bd975644d7cb6d17aa7070bc
Binary files /dev/null and b/question18/2019_01_29_0310_Reflectance_18.tif differ
diff --git a/question18/2019_01_29_0310_Reflectance_19.tif b/question18/2019_01_29_0310_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..acacb60dcde2242b1118f15716686a787d4db338
Binary files /dev/null and b/question18/2019_01_29_0310_Reflectance_19.tif differ
diff --git a/question18/2019_01_29_0310_Reflectance_2.tif b/question18/2019_01_29_0310_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..adcb18bd7f9f295dcb595f7e85ac105be123bc9d
Binary files /dev/null and b/question18/2019_01_29_0310_Reflectance_2.tif differ
diff --git a/question18/2019_01_29_0310_Reflectance_5.tif b/question18/2019_01_29_0310_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d0e0208a152c1aedf69e913f46ff51faa9bfc8b6
Binary files /dev/null and b/question18/2019_01_29_0310_Reflectance_5.tif differ
diff --git a/question18/2019_02_12_0320_Reflectance_17.tif b/question18/2019_02_12_0320_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3039548614a4d4e243ddee33e485785109a9e840
Binary files /dev/null and b/question18/2019_02_12_0320_Reflectance_17.tif differ
diff --git a/question18/2019_02_12_0320_Reflectance_18.tif b/question18/2019_02_12_0320_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..463eba2a03aa8ced7bd1b3bebe63332441cdadff
Binary files /dev/null and b/question18/2019_02_12_0320_Reflectance_18.tif differ
diff --git a/question18/2019_02_12_0320_Reflectance_19.tif b/question18/2019_02_12_0320_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d97322942519256b5520fa9b58481f538722e00f
Binary files /dev/null and b/question18/2019_02_12_0320_Reflectance_19.tif differ
diff --git a/question18/2019_02_12_0320_Reflectance_2.tif b/question18/2019_02_12_0320_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..aefa4af7c56ea60d70c28fce51f85fd3cd217d21
Binary files /dev/null and b/question18/2019_02_12_0320_Reflectance_2.tif differ
diff --git a/question18/2019_02_12_0320_Reflectance_5.tif b/question18/2019_02_12_0320_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0b7d3c6fbc2c34ee32029299685a9c52e5c54b97
Binary files /dev/null and b/question18/2019_02_12_0320_Reflectance_5.tif differ
diff --git a/question18/2019_02_26_0335_Reflectance_17.tif b/question18/2019_02_26_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..139f619ec9b3cd0f61dc4d939afe5c731d24531d
Binary files /dev/null and b/question18/2019_02_26_0335_Reflectance_17.tif differ
diff --git a/question18/2019_02_26_0335_Reflectance_18.tif b/question18/2019_02_26_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2cd96d94a2dde2f54427fae62dd2e348102ff011
Binary files /dev/null and b/question18/2019_02_26_0335_Reflectance_18.tif differ
diff --git a/question18/2019_02_26_0335_Reflectance_19.tif b/question18/2019_02_26_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..279dded4638a147229e3a111790b6a9baf0c5408
Binary files /dev/null and b/question18/2019_02_26_0335_Reflectance_19.tif differ
diff --git a/question18/2019_02_26_0335_Reflectance_2.tif b/question18/2019_02_26_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ebcc110c53aa2e2025a61d0071141b030fc73800
Binary files /dev/null and b/question18/2019_02_26_0335_Reflectance_2.tif differ
diff --git a/question18/2019_02_26_0335_Reflectance_5.tif b/question18/2019_02_26_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..50b510a39376b1f59a56c95b0cfbed699c5e8035
Binary files /dev/null and b/question18/2019_02_26_0335_Reflectance_5.tif differ
diff --git a/question18/2019_03_12_0345_Reflectance_17.tif b/question18/2019_03_12_0345_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1861c68fc2192a760a995099e2a36f562bb044af
Binary files /dev/null and b/question18/2019_03_12_0345_Reflectance_17.tif differ
diff --git a/question18/2019_03_12_0345_Reflectance_18.tif b/question18/2019_03_12_0345_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..db462ba72218ccf824043f666302a63ad461e018
Binary files /dev/null and b/question18/2019_03_12_0345_Reflectance_18.tif differ
diff --git a/question18/2019_03_12_0345_Reflectance_19.tif b/question18/2019_03_12_0345_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6e0d93b97454266a2b369db7b4501d91bd956a98
Binary files /dev/null and b/question18/2019_03_12_0345_Reflectance_19.tif differ
diff --git a/question18/2019_03_12_0345_Reflectance_2.tif b/question18/2019_03_12_0345_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..83e9a6cec4d066baf54427b01245d936f2801df1
Binary files /dev/null and b/question18/2019_03_12_0345_Reflectance_2.tif differ
diff --git a/question18/2019_03_12_0345_Reflectance_5.tif b/question18/2019_03_12_0345_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..53e7b0cf87f2ff3358d7e057dbf611b5a41ae099
Binary files /dev/null and b/question18/2019_03_12_0345_Reflectance_5.tif differ
diff --git a/question18/2019_03_26_0400_Reflectance_17.tif b/question18/2019_03_26_0400_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..140bfa92a0320ed1ddf04bfae9226927fcad619a
Binary files /dev/null and b/question18/2019_03_26_0400_Reflectance_17.tif differ
diff --git a/question18/2019_03_26_0400_Reflectance_18.tif b/question18/2019_03_26_0400_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f5dbe0728ae3fef9e1ee7c5011b8f2c04005267d
Binary files /dev/null and b/question18/2019_03_26_0400_Reflectance_18.tif differ
diff --git a/question18/2019_03_26_0400_Reflectance_19.tif b/question18/2019_03_26_0400_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..71e39629635522132cb7e78465d433b963ca0887
Binary files /dev/null and b/question18/2019_03_26_0400_Reflectance_19.tif differ
diff --git a/question18/2019_03_26_0400_Reflectance_2.tif b/question18/2019_03_26_0400_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cf7c9845361762daf4658c93aafbe28830d59eb3
Binary files /dev/null and b/question18/2019_03_26_0400_Reflectance_2.tif differ
diff --git a/question18/2019_03_26_0400_Reflectance_5.tif b/question18/2019_03_26_0400_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f0c5888689323842112d2c9742b905ba781d53a6
Binary files /dev/null and b/question18/2019_03_26_0400_Reflectance_5.tif differ
diff --git a/question18/2019_04_09_0410_Reflectance_17.tif b/question18/2019_04_09_0410_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..87106a0d26e1e576f8775ca5f183ee2295eff95c
Binary files /dev/null and b/question18/2019_04_09_0410_Reflectance_17.tif differ
diff --git a/question18/2019_04_09_0410_Reflectance_18.tif b/question18/2019_04_09_0410_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d2b6ea4c42ae1428ed7de485a206ba12ed444b0e
Binary files /dev/null and b/question18/2019_04_09_0410_Reflectance_18.tif differ
diff --git a/question18/2019_04_09_0410_Reflectance_19.tif b/question18/2019_04_09_0410_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ecd25c1a58b3041bf53055d5fb397a6ede200bbf
Binary files /dev/null and b/question18/2019_04_09_0410_Reflectance_19.tif differ
diff --git a/question18/2019_04_09_0410_Reflectance_2.tif b/question18/2019_04_09_0410_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a6d76138fa14a00f0efa94285ef162580bf56677
Binary files /dev/null and b/question18/2019_04_09_0410_Reflectance_2.tif differ
diff --git a/question18/2019_04_09_0410_Reflectance_5.tif b/question18/2019_04_09_0410_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3f5377dba0794d2157c5522a04345bd730ee1b0f
Binary files /dev/null and b/question18/2019_04_09_0410_Reflectance_5.tif differ
diff --git a/question18/2019_04_23_0245_Reflectance_17.tif b/question18/2019_04_23_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e571d6578c8d80ff44c65959ccee2426ca7ab34b
Binary files /dev/null and b/question18/2019_04_23_0245_Reflectance_17.tif differ
diff --git a/question18/2019_04_23_0245_Reflectance_18.tif b/question18/2019_04_23_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bb1787d2071184a46c44ed416e7632e7e506a412
Binary files /dev/null and b/question18/2019_04_23_0245_Reflectance_18.tif differ
diff --git a/question18/2019_04_23_0245_Reflectance_19.tif b/question18/2019_04_23_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9d8c3b56ce9ff15b44e999d47a38aa1ae7d95b48
Binary files /dev/null and b/question18/2019_04_23_0245_Reflectance_19.tif differ
diff --git a/question18/2019_04_23_0245_Reflectance_2.tif b/question18/2019_04_23_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0249f4b225ebef5bd5db7e016c6e4b11f2a90131
Binary files /dev/null and b/question18/2019_04_23_0245_Reflectance_2.tif differ
diff --git a/question18/2019_04_23_0245_Reflectance_5.tif b/question18/2019_04_23_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9c58fc4fe380257fcf29052588ff001b4b0c0d51
Binary files /dev/null and b/question18/2019_04_23_0245_Reflectance_5.tif differ
diff --git a/question18/2019_05_07_0300_Reflectance_17.tif b/question18/2019_05_07_0300_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f0f0109e994662fd606a69d9354a720ca2bef39f
Binary files /dev/null and b/question18/2019_05_07_0300_Reflectance_17.tif differ
diff --git a/question18/2019_05_07_0300_Reflectance_18.tif b/question18/2019_05_07_0300_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..40376f669b0916fb1ab02e9860faff3f7e7080ac
Binary files /dev/null and b/question18/2019_05_07_0300_Reflectance_18.tif differ
diff --git a/question18/2019_05_07_0300_Reflectance_19.tif b/question18/2019_05_07_0300_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ea9e8fefdad29147c34fc0dca77d84a30cc0db93
Binary files /dev/null and b/question18/2019_05_07_0300_Reflectance_19.tif differ
diff --git a/question18/2019_05_07_0300_Reflectance_2.tif b/question18/2019_05_07_0300_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fec6de3957ce183d711af2bc8896df4ce55c85bd
Binary files /dev/null and b/question18/2019_05_07_0300_Reflectance_2.tif differ
diff --git a/question18/2019_05_07_0300_Reflectance_5.tif b/question18/2019_05_07_0300_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ddc738eca940ff2fe4dfadfc168a3756a37d826e
Binary files /dev/null and b/question18/2019_05_07_0300_Reflectance_5.tif differ
diff --git a/question18/2019_05_21_0310_Reflectance_17.tif b/question18/2019_05_21_0310_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7a28dffa3d8287fb4e4768d4fd5b1e5e0131113e
Binary files /dev/null and b/question18/2019_05_21_0310_Reflectance_17.tif differ
diff --git a/question18/2019_05_21_0310_Reflectance_18.tif b/question18/2019_05_21_0310_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..86f64e706e2db1175f18aaaf99d2dd184488d303
Binary files /dev/null and b/question18/2019_05_21_0310_Reflectance_18.tif differ
diff --git a/question18/2019_05_21_0310_Reflectance_19.tif b/question18/2019_05_21_0310_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b57eee2f1dc3147ab147dfcceec5fe5a1c8f0eea
Binary files /dev/null and b/question18/2019_05_21_0310_Reflectance_19.tif differ
diff --git a/question18/2019_05_21_0310_Reflectance_2.tif b/question18/2019_05_21_0310_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5498f66d81235d79f2408d1b2a95b1d263bb0992
Binary files /dev/null and b/question18/2019_05_21_0310_Reflectance_2.tif differ
diff --git a/question18/2019_05_21_0310_Reflectance_5.tif b/question18/2019_05_21_0310_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..09a49f289c637282fdc44f4139751f1d8b6db363
Binary files /dev/null and b/question18/2019_05_21_0310_Reflectance_5.tif differ
diff --git a/question18/2019_06_04_0320_Reflectance_17.tif b/question18/2019_06_04_0320_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ef9975140ab5908f8d3930d87809e3cd749d0b2e
Binary files /dev/null and b/question18/2019_06_04_0320_Reflectance_17.tif differ
diff --git a/question18/2019_06_04_0320_Reflectance_18.tif b/question18/2019_06_04_0320_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e9d58e64bf01b741efddf5afa0d963067247598d
Binary files /dev/null and b/question18/2019_06_04_0320_Reflectance_18.tif differ
diff --git a/question18/2019_06_04_0320_Reflectance_19.tif b/question18/2019_06_04_0320_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..42f735ab85d5d55ca83c8ce2eaed6ec501762f61
Binary files /dev/null and b/question18/2019_06_04_0320_Reflectance_19.tif differ
diff --git a/question18/2019_06_04_0320_Reflectance_2.tif b/question18/2019_06_04_0320_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..aac41975877e199cd57a819aa60cb2f557f906eb
Binary files /dev/null and b/question18/2019_06_04_0320_Reflectance_2.tif differ
diff --git a/question18/2019_06_04_0320_Reflectance_5.tif b/question18/2019_06_04_0320_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..76846e292462f50da272a8054acbafb260cd38f8
Binary files /dev/null and b/question18/2019_06_04_0320_Reflectance_5.tif differ
diff --git a/question18/2019_06_18_0335_Reflectance_17.tif b/question18/2019_06_18_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3cc0bdeee851c8120c4aeb12e300d581abcbaba9
Binary files /dev/null and b/question18/2019_06_18_0335_Reflectance_17.tif differ
diff --git a/question18/2019_06_18_0335_Reflectance_18.tif b/question18/2019_06_18_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..314b35087991f03ab7c6934fb8ce0c95ee49ca7c
Binary files /dev/null and b/question18/2019_06_18_0335_Reflectance_18.tif differ
diff --git a/question18/2019_06_18_0335_Reflectance_19.tif b/question18/2019_06_18_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6611b7c0e365f1bdcc3c0793785c90a95c22a6b6
Binary files /dev/null and b/question18/2019_06_18_0335_Reflectance_19.tif differ
diff --git a/question18/2019_06_18_0335_Reflectance_2.tif b/question18/2019_06_18_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..41e0e9558a0407b03bb7c2034022a52d05d82b69
Binary files /dev/null and b/question18/2019_06_18_0335_Reflectance_2.tif differ
diff --git a/question18/2019_06_18_0335_Reflectance_5.tif b/question18/2019_06_18_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9189e5b9a7d75ff62518c1df281abbe92d06d9aa
Binary files /dev/null and b/question18/2019_06_18_0335_Reflectance_5.tif differ
diff --git a/question18/2019_07_02_0345_Reflectance_17.tif b/question18/2019_07_02_0345_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0f64b08dd268b6d01d2fc1eb503d3cf7cff2e998
Binary files /dev/null and b/question18/2019_07_02_0345_Reflectance_17.tif differ
diff --git a/question18/2019_07_02_0345_Reflectance_18.tif b/question18/2019_07_02_0345_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..42290f572b0b555a50bf31e62d694f56bfc4685e
Binary files /dev/null and b/question18/2019_07_02_0345_Reflectance_18.tif differ
diff --git a/question18/2019_07_02_0345_Reflectance_19.tif b/question18/2019_07_02_0345_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..189d8afc8411b89cf7a89f49734d2482339970c2
Binary files /dev/null and b/question18/2019_07_02_0345_Reflectance_19.tif differ
diff --git a/question18/2019_07_02_0345_Reflectance_2.tif b/question18/2019_07_02_0345_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8c9622a07b40aae040331181419fd89600323f58
Binary files /dev/null and b/question18/2019_07_02_0345_Reflectance_2.tif differ
diff --git a/question18/2019_07_02_0345_Reflectance_5.tif b/question18/2019_07_02_0345_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5de200242b56bb5852988797a53f340db24353b6
Binary files /dev/null and b/question18/2019_07_02_0345_Reflectance_5.tif differ
diff --git a/question18/2019_07_16_0400_Reflectance_17.tif b/question18/2019_07_16_0400_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8a5ca105a85760aaae5602459a2f5dd3028aac6f
Binary files /dev/null and b/question18/2019_07_16_0400_Reflectance_17.tif differ
diff --git a/question18/2019_07_16_0400_Reflectance_18.tif b/question18/2019_07_16_0400_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4e74cd0484a89e63563bae249a7dcb06fd2065a8
Binary files /dev/null and b/question18/2019_07_16_0400_Reflectance_18.tif differ
diff --git a/question18/2019_07_16_0400_Reflectance_19.tif b/question18/2019_07_16_0400_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..41e98fe1b7288e434b6771d32ab72f17425b85ba
Binary files /dev/null and b/question18/2019_07_16_0400_Reflectance_19.tif differ
diff --git a/question18/2019_07_16_0400_Reflectance_2.tif b/question18/2019_07_16_0400_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7dc4439c8f1d22845c066060345765c83f992145
Binary files /dev/null and b/question18/2019_07_16_0400_Reflectance_2.tif differ
diff --git a/question18/2019_07_16_0400_Reflectance_5.tif b/question18/2019_07_16_0400_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cd0231642f9b49c673b178e373c330dae3cc72d1
Binary files /dev/null and b/question18/2019_07_16_0400_Reflectance_5.tif differ
diff --git a/question18/2019_07_30_0410_Reflectance_17.tif b/question18/2019_07_30_0410_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e0d577468d025ebe83ea781621c32fdc58d1c5fb
Binary files /dev/null and b/question18/2019_07_30_0410_Reflectance_17.tif differ
diff --git a/question18/2019_07_30_0410_Reflectance_18.tif b/question18/2019_07_30_0410_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..eb3175bbaa88657f7fe9f8d82e7a91cb34642caf
Binary files /dev/null and b/question18/2019_07_30_0410_Reflectance_18.tif differ
diff --git a/question18/2019_07_30_0410_Reflectance_19.tif b/question18/2019_07_30_0410_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..542394e888ab29de413fdd451feaa4a4d118a7cd
Binary files /dev/null and b/question18/2019_07_30_0410_Reflectance_19.tif differ
diff --git a/question18/2019_07_30_0410_Reflectance_2.tif b/question18/2019_07_30_0410_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..464e20502060af66473248aba3974505bd601f5a
Binary files /dev/null and b/question18/2019_07_30_0410_Reflectance_2.tif differ
diff --git a/question18/2019_07_30_0410_Reflectance_5.tif b/question18/2019_07_30_0410_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9a984d0a124481a8d37caa3965c0d6241bbb72d8
Binary files /dev/null and b/question18/2019_07_30_0410_Reflectance_5.tif differ
diff --git a/question18/2019_08_13_0245_Reflectance_17.tif b/question18/2019_08_13_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b8d24e87bbaad13dad739b4a77e7c675b3241fbd
Binary files /dev/null and b/question18/2019_08_13_0245_Reflectance_17.tif differ
diff --git a/question18/2019_08_13_0245_Reflectance_18.tif b/question18/2019_08_13_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..95d1aa51ce06717db11c6d9a3a8d9702a3af3531
Binary files /dev/null and b/question18/2019_08_13_0245_Reflectance_18.tif differ
diff --git a/question18/2019_08_13_0245_Reflectance_19.tif b/question18/2019_08_13_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c49018843fbc2f807ddf3bd155d9fd020d2362a5
Binary files /dev/null and b/question18/2019_08_13_0245_Reflectance_19.tif differ
diff --git a/question18/2019_08_13_0245_Reflectance_2.tif b/question18/2019_08_13_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0096b20efbb6fcff807dd2e781a883ddad60a1e8
Binary files /dev/null and b/question18/2019_08_13_0245_Reflectance_2.tif differ
diff --git a/question18/2019_08_13_0245_Reflectance_5.tif b/question18/2019_08_13_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3b43967d4061c96c8c802c960ada4443113a58a8
Binary files /dev/null and b/question18/2019_08_13_0245_Reflectance_5.tif differ
diff --git a/question18/2019_08_27_0255_Reflectance_17.tif b/question18/2019_08_27_0255_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..516c3e27b073ef4f60941841403e70c1f2563c14
Binary files /dev/null and b/question18/2019_08_27_0255_Reflectance_17.tif differ
diff --git a/question18/2019_08_27_0255_Reflectance_18.tif b/question18/2019_08_27_0255_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1f48ca873dd0ed5da449c7595c65cf31a6204972
Binary files /dev/null and b/question18/2019_08_27_0255_Reflectance_18.tif differ
diff --git a/question18/2019_08_27_0255_Reflectance_19.tif b/question18/2019_08_27_0255_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7c42e18bccaddde2c6838b23a70bb02948bed7c1
Binary files /dev/null and b/question18/2019_08_27_0255_Reflectance_19.tif differ
diff --git a/question18/2019_08_27_0255_Reflectance_2.tif b/question18/2019_08_27_0255_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3dd75499b5c12c983c2467e26529a33b420ce19c
Binary files /dev/null and b/question18/2019_08_27_0255_Reflectance_2.tif differ
diff --git a/question18/2019_08_27_0255_Reflectance_5.tif b/question18/2019_08_27_0255_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9288d75d4b3329d64d32aef71c956972cbb16f35
Binary files /dev/null and b/question18/2019_08_27_0255_Reflectance_5.tif differ
diff --git a/question18/2019_09_10_0310_Reflectance_17.tif b/question18/2019_09_10_0310_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3f0b4724ed7b86c9bd28c94a5591740434c9e826
Binary files /dev/null and b/question18/2019_09_10_0310_Reflectance_17.tif differ
diff --git a/question18/2019_09_10_0310_Reflectance_18.tif b/question18/2019_09_10_0310_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..98001fbf29acd7b8e3a38f08966f1c73f94ca1ed
Binary files /dev/null and b/question18/2019_09_10_0310_Reflectance_18.tif differ
diff --git a/question18/2019_09_10_0310_Reflectance_19.tif b/question18/2019_09_10_0310_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ee9a3e8d321784ac6f7b9ee91215cbc96650f18e
Binary files /dev/null and b/question18/2019_09_10_0310_Reflectance_19.tif differ
diff --git a/question18/2019_09_10_0310_Reflectance_2.tif b/question18/2019_09_10_0310_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2792a007d0ebb7b7e61395f35ddd95fb4a96acd8
Binary files /dev/null and b/question18/2019_09_10_0310_Reflectance_2.tif differ
diff --git a/question18/2019_09_10_0310_Reflectance_5.tif b/question18/2019_09_10_0310_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..00ecef14db4a67245b231b7819ba1d94b092dcd1
Binary files /dev/null and b/question18/2019_09_10_0310_Reflectance_5.tif differ
diff --git a/question18/2019_09_24_0320_Reflectance_17.tif b/question18/2019_09_24_0320_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3f7395021584c5704d27d591750efc197463404f
Binary files /dev/null and b/question18/2019_09_24_0320_Reflectance_17.tif differ
diff --git a/question18/2019_09_24_0320_Reflectance_18.tif b/question18/2019_09_24_0320_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..072966d0b96922efc2c64d397e8b1472e233f424
Binary files /dev/null and b/question18/2019_09_24_0320_Reflectance_18.tif differ
diff --git a/question18/2019_09_24_0320_Reflectance_19.tif b/question18/2019_09_24_0320_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6fb39766a4d2a1795b341779f42deaf2f9ff4fdd
Binary files /dev/null and b/question18/2019_09_24_0320_Reflectance_19.tif differ
diff --git a/question18/2019_09_24_0320_Reflectance_2.tif b/question18/2019_09_24_0320_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a882084905500cf025ad7b5b655f30afd9aee553
Binary files /dev/null and b/question18/2019_09_24_0320_Reflectance_2.tif differ
diff --git a/question18/2019_09_24_0320_Reflectance_5.tif b/question18/2019_09_24_0320_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4f03730dc8b73702daca4597f00671fed240b15e
Binary files /dev/null and b/question18/2019_09_24_0320_Reflectance_5.tif differ
diff --git a/question18/2019_10_08_0335_Reflectance_17.tif b/question18/2019_10_08_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7fa4d8aaf61437a6153c4be5c0484895ecf6eb30
Binary files /dev/null and b/question18/2019_10_08_0335_Reflectance_17.tif differ
diff --git a/question18/2019_10_08_0335_Reflectance_18.tif b/question18/2019_10_08_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..dc9660a17d401e4710953db875404adb482ff2b2
Binary files /dev/null and b/question18/2019_10_08_0335_Reflectance_18.tif differ
diff --git a/question18/2019_10_08_0335_Reflectance_19.tif b/question18/2019_10_08_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..055b07d8c75eafeddbf5a63ff952debb7290b437
Binary files /dev/null and b/question18/2019_10_08_0335_Reflectance_19.tif differ
diff --git a/question18/2019_10_08_0335_Reflectance_2.tif b/question18/2019_10_08_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1fa71c57836bb83d711bac6d95ca26994d8f8590
Binary files /dev/null and b/question18/2019_10_08_0335_Reflectance_2.tif differ
diff --git a/question18/2019_10_08_0335_Reflectance_5.tif b/question18/2019_10_08_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f4d3d561acfa35f7d83b0d1f1ad6f476af03d9ed
Binary files /dev/null and b/question18/2019_10_08_0335_Reflectance_5.tif differ
diff --git a/question18/2019_10_22_0345_Reflectance_17.tif b/question18/2019_10_22_0345_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fdddf9ce41e563886fe2fa735dd0417ce63ab4e5
Binary files /dev/null and b/question18/2019_10_22_0345_Reflectance_17.tif differ
diff --git a/question18/2019_10_22_0345_Reflectance_18.tif b/question18/2019_10_22_0345_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4d10b5b36a14488feec69c61c84b3ed6d43cd2c9
Binary files /dev/null and b/question18/2019_10_22_0345_Reflectance_18.tif differ
diff --git a/question18/2019_10_22_0345_Reflectance_19.tif b/question18/2019_10_22_0345_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3ddf0e70f24f657b3dcd58f32ae75e1eb936a73f
Binary files /dev/null and b/question18/2019_10_22_0345_Reflectance_19.tif differ
diff --git a/question18/2019_10_22_0345_Reflectance_2.tif b/question18/2019_10_22_0345_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..79885cf251928abe69c5ccf2d61e937653899a1d
Binary files /dev/null and b/question18/2019_10_22_0345_Reflectance_2.tif differ
diff --git a/question18/2019_10_22_0345_Reflectance_5.tif b/question18/2019_10_22_0345_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1f084efd575069b9f3183ee4e6c8cf15e68b9ec0
Binary files /dev/null and b/question18/2019_10_22_0345_Reflectance_5.tif differ
diff --git a/question18/2019_11_05_0400_Reflectance_17.tif b/question18/2019_11_05_0400_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..06257a5ccefad98db63a96518b0a56c62ded50e2
Binary files /dev/null and b/question18/2019_11_05_0400_Reflectance_17.tif differ
diff --git a/question18/2019_11_05_0400_Reflectance_18.tif b/question18/2019_11_05_0400_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..432267ee15042e91e5459416f2464a2b7a588ac2
Binary files /dev/null and b/question18/2019_11_05_0400_Reflectance_18.tif differ
diff --git a/question18/2019_11_05_0400_Reflectance_19.tif b/question18/2019_11_05_0400_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ad44084d8ac58034a55c7233dffcfa48dfa4cbac
Binary files /dev/null and b/question18/2019_11_05_0400_Reflectance_19.tif differ
diff --git a/question18/2019_11_05_0400_Reflectance_2.tif b/question18/2019_11_05_0400_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c0d5a38c29d008fecfefe21bddf3c6e41b9e37aa
Binary files /dev/null and b/question18/2019_11_05_0400_Reflectance_2.tif differ
diff --git a/question18/2019_11_05_0400_Reflectance_5.tif b/question18/2019_11_05_0400_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d8a6a02f061a2f989c78c1aa0126edb5d024c708
Binary files /dev/null and b/question18/2019_11_05_0400_Reflectance_5.tif differ
diff --git a/question18/2019_11_19_0410_Reflectance_17.tif b/question18/2019_11_19_0410_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c35a06b98d6eacc6633b3e94693e70ed7c3be1bd
Binary files /dev/null and b/question18/2019_11_19_0410_Reflectance_17.tif differ
diff --git a/question18/2019_11_19_0410_Reflectance_18.tif b/question18/2019_11_19_0410_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1575a3ee415421734d9178c866d80c7570fa2e03
Binary files /dev/null and b/question18/2019_11_19_0410_Reflectance_18.tif differ
diff --git a/question18/2019_11_19_0410_Reflectance_19.tif b/question18/2019_11_19_0410_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..02d3409b5044344ffd88f51792eaa6f5e014be06
Binary files /dev/null and b/question18/2019_11_19_0410_Reflectance_19.tif differ
diff --git a/question18/2019_11_19_0410_Reflectance_2.tif b/question18/2019_11_19_0410_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6a7d3c571524f39729876ec2cdf8aa469447b34e
Binary files /dev/null and b/question18/2019_11_19_0410_Reflectance_2.tif differ
diff --git a/question18/2019_11_19_0410_Reflectance_5.tif b/question18/2019_11_19_0410_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..86f966c896fdd5c3164df2cf8ea9e5bba096e8b7
Binary files /dev/null and b/question18/2019_11_19_0410_Reflectance_5.tif differ
diff --git a/question18/2019_12_03_0245_Reflectance_17.tif b/question18/2019_12_03_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4b98111b726248edf879252242f8c2b92fe74f98
Binary files /dev/null and b/question18/2019_12_03_0245_Reflectance_17.tif differ
diff --git a/question18/2019_12_03_0245_Reflectance_18.tif b/question18/2019_12_03_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c7410c981d708f54d24ad1926f533c472179ccf2
Binary files /dev/null and b/question18/2019_12_03_0245_Reflectance_18.tif differ
diff --git a/question18/2019_12_03_0245_Reflectance_19.tif b/question18/2019_12_03_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..369d8f20e22f32fb9773997bbb6f3ba8773094c6
Binary files /dev/null and b/question18/2019_12_03_0245_Reflectance_19.tif differ
diff --git a/question18/2019_12_03_0245_Reflectance_2.tif b/question18/2019_12_03_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..449a6661ada90aa725a1c4a61c93282723c1334a
Binary files /dev/null and b/question18/2019_12_03_0245_Reflectance_2.tif differ
diff --git a/question18/2019_12_03_0245_Reflectance_5.tif b/question18/2019_12_03_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1c627a07e72ddf09b49c33032c1eba0093acd5c1
Binary files /dev/null and b/question18/2019_12_03_0245_Reflectance_5.tif differ
diff --git a/question18/2019_12_17_0255_Reflectance_17.tif b/question18/2019_12_17_0255_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5d088f1b5cb646949457e6df6511651eeb3af620
Binary files /dev/null and b/question18/2019_12_17_0255_Reflectance_17.tif differ
diff --git a/question18/2019_12_17_0255_Reflectance_18.tif b/question18/2019_12_17_0255_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f3f40f616f0e8d157297c5de1d9937c9c5d60251
Binary files /dev/null and b/question18/2019_12_17_0255_Reflectance_18.tif differ
diff --git a/question18/2019_12_17_0255_Reflectance_19.tif b/question18/2019_12_17_0255_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..73f314340ed11bc623128a8f8b9bb49eee362344
Binary files /dev/null and b/question18/2019_12_17_0255_Reflectance_19.tif differ
diff --git a/question18/2019_12_17_0255_Reflectance_2.tif b/question18/2019_12_17_0255_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8c26dafb86ceae8050f149bebbaa0d71cc0c03c7
Binary files /dev/null and b/question18/2019_12_17_0255_Reflectance_2.tif differ
diff --git a/question18/2019_12_17_0255_Reflectance_5.tif b/question18/2019_12_17_0255_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3780cd6ef2bd245f5fdc62292cfc9e68a465c55a
Binary files /dev/null and b/question18/2019_12_17_0255_Reflectance_5.tif differ
diff --git a/question18/2019_12_31_0310_Reflectance_17.tif b/question18/2019_12_31_0310_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ce7eb3557c195c938a19636603e74e501b30e36c
Binary files /dev/null and b/question18/2019_12_31_0310_Reflectance_17.tif differ
diff --git a/question18/2019_12_31_0310_Reflectance_18.tif b/question18/2019_12_31_0310_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6439aa827bc977123d1f2439d8347b0f36389208
Binary files /dev/null and b/question18/2019_12_31_0310_Reflectance_18.tif differ
diff --git a/question18/2019_12_31_0310_Reflectance_19.tif b/question18/2019_12_31_0310_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..06402a830428f05a9c97eef4901f2ae70c492b16
Binary files /dev/null and b/question18/2019_12_31_0310_Reflectance_19.tif differ
diff --git a/question18/2019_12_31_0310_Reflectance_2.tif b/question18/2019_12_31_0310_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2800ac7421982cc772077bdaddcd2ead09bc0380
Binary files /dev/null and b/question18/2019_12_31_0310_Reflectance_2.tif differ
diff --git a/question18/2019_12_31_0310_Reflectance_5.tif b/question18/2019_12_31_0310_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..010b7b6743b9ba1ead4f3e7344ae1516131f95cd
Binary files /dev/null and b/question18/2019_12_31_0310_Reflectance_5.tif differ
diff --git a/question18/2020_01_01_0350_Reflectance_17.tif b/question18/2020_01_01_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..54e5ec7c83efa9dcc24e854ca8c732cfefb8cc70
Binary files /dev/null and b/question18/2020_01_01_0350_Reflectance_17.tif differ
diff --git a/question18/2020_01_01_0350_Reflectance_18.tif b/question18/2020_01_01_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6d17a4f5c3c2b9e017745910c247d0796cca4bf7
Binary files /dev/null and b/question18/2020_01_01_0350_Reflectance_18.tif differ
diff --git a/question18/2020_01_01_0350_Reflectance_19.tif b/question18/2020_01_01_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..aa30ccddebbc5889daaad67ac00352b6e5c691e8
Binary files /dev/null and b/question18/2020_01_01_0350_Reflectance_19.tif differ
diff --git a/question18/2020_01_01_0350_Reflectance_2.tif b/question18/2020_01_01_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f437a01c8d0df8b49572b07fb69434e49282f8a1
Binary files /dev/null and b/question18/2020_01_01_0350_Reflectance_2.tif differ
diff --git a/question18/2020_01_01_0350_Reflectance_5.tif b/question18/2020_01_01_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d506d716efa32759be798a39ad35adfe6fa36893
Binary files /dev/null and b/question18/2020_01_01_0350_Reflectance_5.tif differ
diff --git a/question18/2020_01_15_0405_Reflectance_17.tif b/question18/2020_01_15_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..04ced1256178f2bf28ffa63671705a2407e2e091
Binary files /dev/null and b/question18/2020_01_15_0405_Reflectance_17.tif differ
diff --git a/question18/2020_01_15_0405_Reflectance_18.tif b/question18/2020_01_15_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f53f2fc30f8b892027db8276c8705a0be3767a49
Binary files /dev/null and b/question18/2020_01_15_0405_Reflectance_18.tif differ
diff --git a/question18/2020_01_15_0405_Reflectance_19.tif b/question18/2020_01_15_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a1405c7cb5768c1f2a32c27b9c7603895d9dbb69
Binary files /dev/null and b/question18/2020_01_15_0405_Reflectance_19.tif differ
diff --git a/question18/2020_01_15_0405_Reflectance_2.tif b/question18/2020_01_15_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..efb4842d3d2ca7e6e345e67569feb05407e5d046
Binary files /dev/null and b/question18/2020_01_15_0405_Reflectance_2.tif differ
diff --git a/question18/2020_01_15_0405_Reflectance_5.tif b/question18/2020_01_15_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0c0ee8cc3f81de7c25e517680a1ed52e19c4a540
Binary files /dev/null and b/question18/2020_01_15_0405_Reflectance_5.tif differ
diff --git a/question18/2020_01_29_0240_Reflectance_17.tif b/question18/2020_01_29_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..25342f1617f653ae46d52612d155f67fa9d408e2
Binary files /dev/null and b/question18/2020_01_29_0240_Reflectance_17.tif differ
diff --git a/question18/2020_01_29_0240_Reflectance_18.tif b/question18/2020_01_29_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bb48469023bc4b02f8a4ff5601e092619082cda5
Binary files /dev/null and b/question18/2020_01_29_0240_Reflectance_18.tif differ
diff --git a/question18/2020_01_29_0240_Reflectance_19.tif b/question18/2020_01_29_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9b7ac2e1fccb141cc40e1f3ad965296db91a7d29
Binary files /dev/null and b/question18/2020_01_29_0240_Reflectance_19.tif differ
diff --git a/question18/2020_01_29_0240_Reflectance_2.tif b/question18/2020_01_29_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b2826798972ffd09d533239d3fa1a94d9885df25
Binary files /dev/null and b/question18/2020_01_29_0240_Reflectance_2.tif differ
diff --git a/question18/2020_01_29_0240_Reflectance_5.tif b/question18/2020_01_29_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..55014310bbee61e393ed0f91e126ded665ec811f
Binary files /dev/null and b/question18/2020_01_29_0240_Reflectance_5.tif differ
diff --git a/question18/2020_02_12_0250_Reflectance_17.tif b/question18/2020_02_12_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..de68df64a2591452556259b0e3c6fa67af4ec892
Binary files /dev/null and b/question18/2020_02_12_0250_Reflectance_17.tif differ
diff --git a/question18/2020_02_12_0250_Reflectance_18.tif b/question18/2020_02_12_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..625f9cf2be8dc650a72bfde00aea88dda56ef38d
Binary files /dev/null and b/question18/2020_02_12_0250_Reflectance_18.tif differ
diff --git a/question18/2020_02_12_0250_Reflectance_19.tif b/question18/2020_02_12_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b4f8986febae57a0c5f0cc98b72e7ecd3c49ce0b
Binary files /dev/null and b/question18/2020_02_12_0250_Reflectance_19.tif differ
diff --git a/question18/2020_02_12_0250_Reflectance_2.tif b/question18/2020_02_12_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..77fd6ef268cffd00505c1617bbb1f56aa26ca7a8
Binary files /dev/null and b/question18/2020_02_12_0250_Reflectance_2.tif differ
diff --git a/question18/2020_02_12_0250_Reflectance_5.tif b/question18/2020_02_12_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8f0beee2ae2598bc12dc7a1ef1d515f533db740b
Binary files /dev/null and b/question18/2020_02_12_0250_Reflectance_5.tif differ
diff --git a/question18/2020_02_26_0305_Reflectance_17.tif b/question18/2020_02_26_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..54e0ea20506f4754274d39a40101f94ec71aaa35
Binary files /dev/null and b/question18/2020_02_26_0305_Reflectance_17.tif differ
diff --git a/question18/2020_02_26_0305_Reflectance_18.tif b/question18/2020_02_26_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bf53ec1eb7f411f684cea85f97de8fef67ac7d8c
Binary files /dev/null and b/question18/2020_02_26_0305_Reflectance_18.tif differ
diff --git a/question18/2020_02_26_0305_Reflectance_19.tif b/question18/2020_02_26_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..da22fba1fc4307dd3625dc73b4e698de9cb30584
Binary files /dev/null and b/question18/2020_02_26_0305_Reflectance_19.tif differ
diff --git a/question18/2020_02_26_0305_Reflectance_2.tif b/question18/2020_02_26_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4a2262f8a56db7f6cf757e3e38fe69d09ccbc523
Binary files /dev/null and b/question18/2020_02_26_0305_Reflectance_2.tif differ
diff --git a/question18/2020_02_26_0305_Reflectance_5.tif b/question18/2020_02_26_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0f60350a27625a66881747f16bb2d3dbbbabfa56
Binary files /dev/null and b/question18/2020_02_26_0305_Reflectance_5.tif differ
diff --git a/question18/2020_03_11_0315_Reflectance_17.tif b/question18/2020_03_11_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bf3dd5c9ec9dad573c31dee11e6359fa30b36705
Binary files /dev/null and b/question18/2020_03_11_0315_Reflectance_17.tif differ
diff --git a/question18/2020_03_11_0315_Reflectance_18.tif b/question18/2020_03_11_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f96de529efd4fe83f8e48cda68c3ffcb0d54e04d
Binary files /dev/null and b/question18/2020_03_11_0315_Reflectance_18.tif differ
diff --git a/question18/2020_03_11_0315_Reflectance_19.tif b/question18/2020_03_11_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..15d0698cb4aa9efe00a6cff518c8538665340696
Binary files /dev/null and b/question18/2020_03_11_0315_Reflectance_19.tif differ
diff --git a/question18/2020_03_11_0315_Reflectance_2.tif b/question18/2020_03_11_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..63d31f7721efa6992e502b3b6bfe2d0b6f6cf6a2
Binary files /dev/null and b/question18/2020_03_11_0315_Reflectance_2.tif differ
diff --git a/question18/2020_03_11_0315_Reflectance_5.tif b/question18/2020_03_11_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a5948a343d5dc058cf1698f611587ed1957adac5
Binary files /dev/null and b/question18/2020_03_11_0315_Reflectance_5.tif differ
diff --git a/question18/2020_03_25_0330_Reflectance_17.tif b/question18/2020_03_25_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2d090384afb4b67eccb32c3fe37c4db8cb8f0dda
Binary files /dev/null and b/question18/2020_03_25_0330_Reflectance_17.tif differ
diff --git a/question18/2020_03_25_0330_Reflectance_18.tif b/question18/2020_03_25_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c49a19de0f98dffce52debbcc14a60c07848d686
Binary files /dev/null and b/question18/2020_03_25_0330_Reflectance_18.tif differ
diff --git a/question18/2020_03_25_0330_Reflectance_19.tif b/question18/2020_03_25_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bd0f732b165a844aa3a1569f6b3a4bdbcae2731f
Binary files /dev/null and b/question18/2020_03_25_0330_Reflectance_19.tif differ
diff --git a/question18/2020_03_25_0330_Reflectance_2.tif b/question18/2020_03_25_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a856a914419af7cd7c4b5763b4325cff25c116cc
Binary files /dev/null and b/question18/2020_03_25_0330_Reflectance_2.tif differ
diff --git a/question18/2020_03_25_0330_Reflectance_5.tif b/question18/2020_03_25_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3c992534854cb57abc4bc189dbd7965d652cf5a4
Binary files /dev/null and b/question18/2020_03_25_0330_Reflectance_5.tif differ
diff --git a/question18/2020_04_08_0340_Reflectance_17.tif b/question18/2020_04_08_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1c368de935fb6a6311088cc651076021580c20f1
Binary files /dev/null and b/question18/2020_04_08_0340_Reflectance_17.tif differ
diff --git a/question18/2020_04_08_0340_Reflectance_18.tif b/question18/2020_04_08_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..44d3b04354d120c937a145a3aeebda012aa4ecd9
Binary files /dev/null and b/question18/2020_04_08_0340_Reflectance_18.tif differ
diff --git a/question18/2020_04_08_0340_Reflectance_19.tif b/question18/2020_04_08_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..574bf186e3065425e7560c6b65aaec628b733615
Binary files /dev/null and b/question18/2020_04_08_0340_Reflectance_19.tif differ
diff --git a/question18/2020_04_08_0340_Reflectance_2.tif b/question18/2020_04_08_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ed3973ae3173060892209aa0db17a1954dfe5e13
Binary files /dev/null and b/question18/2020_04_08_0340_Reflectance_2.tif differ
diff --git a/question18/2020_04_08_0340_Reflectance_5.tif b/question18/2020_04_08_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..88915856594bf25bcf77a0a80aba6606171f1886
Binary files /dev/null and b/question18/2020_04_08_0340_Reflectance_5.tif differ
diff --git a/question18/2020_04_22_0355_Reflectance_17.tif b/question18/2020_04_22_0355_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9165f5c7b8aa979cfeafe207189228ada30bd33a
Binary files /dev/null and b/question18/2020_04_22_0355_Reflectance_17.tif differ
diff --git a/question18/2020_04_22_0355_Reflectance_18.tif b/question18/2020_04_22_0355_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..65552dde6f518054ab64e74702e0394c8fc51c1b
Binary files /dev/null and b/question18/2020_04_22_0355_Reflectance_18.tif differ
diff --git a/question18/2020_04_22_0355_Reflectance_19.tif b/question18/2020_04_22_0355_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1048155eeecc022c6e3c65cdc4865d0b560b2a87
Binary files /dev/null and b/question18/2020_04_22_0355_Reflectance_19.tif differ
diff --git a/question18/2020_04_22_0355_Reflectance_2.tif b/question18/2020_04_22_0355_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5e416af0cc828a97cba3ab65463622e0ff33102a
Binary files /dev/null and b/question18/2020_04_22_0355_Reflectance_2.tif differ
diff --git a/question18/2020_04_22_0355_Reflectance_5.tif b/question18/2020_04_22_0355_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fff75d9875f53e4fccfd9149f5813ea717c69b49
Binary files /dev/null and b/question18/2020_04_22_0355_Reflectance_5.tif differ
diff --git a/question18/2020_05_06_0405_Reflectance_17.tif b/question18/2020_05_06_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f4e38df3b5418ab7b16818c820c0ab73974cd357
Binary files /dev/null and b/question18/2020_05_06_0405_Reflectance_17.tif differ
diff --git a/question18/2020_05_06_0405_Reflectance_18.tif b/question18/2020_05_06_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ecc41da8bed0d8e407cec615e27f3aff33585922
Binary files /dev/null and b/question18/2020_05_06_0405_Reflectance_18.tif differ
diff --git a/question18/2020_05_06_0405_Reflectance_19.tif b/question18/2020_05_06_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ee94df018434b311b8671d0dea17426835c40b5f
Binary files /dev/null and b/question18/2020_05_06_0405_Reflectance_19.tif differ
diff --git a/question18/2020_05_06_0405_Reflectance_2.tif b/question18/2020_05_06_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..03c1cb0b1c746b5d58fca553fddcc2456ad05ccd
Binary files /dev/null and b/question18/2020_05_06_0405_Reflectance_2.tif differ
diff --git a/question18/2020_05_06_0405_Reflectance_5.tif b/question18/2020_05_06_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5db4823836e80c9ab72fc2ce82d118e925f17761
Binary files /dev/null and b/question18/2020_05_06_0405_Reflectance_5.tif differ
diff --git a/question18/2020_05_20_0240_Reflectance_17.tif b/question18/2020_05_20_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f90118faedb926234396bb9f1c47e7f9ad3b8f35
Binary files /dev/null and b/question18/2020_05_20_0240_Reflectance_17.tif differ
diff --git a/question18/2020_05_20_0240_Reflectance_18.tif b/question18/2020_05_20_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e83a5969e98909833197446ef9f9530c1691e529
Binary files /dev/null and b/question18/2020_05_20_0240_Reflectance_18.tif differ
diff --git a/question18/2020_05_20_0240_Reflectance_19.tif b/question18/2020_05_20_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1e8b6df17be253fca08c394e9b0202f034dc1d91
Binary files /dev/null and b/question18/2020_05_20_0240_Reflectance_19.tif differ
diff --git a/question18/2020_05_20_0240_Reflectance_2.tif b/question18/2020_05_20_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a5c722bc2cbb75bc14311bad533bfabb2da6016d
Binary files /dev/null and b/question18/2020_05_20_0240_Reflectance_2.tif differ
diff --git a/question18/2020_05_20_0240_Reflectance_5.tif b/question18/2020_05_20_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..33499081fc1d862a1c67468d730128d972c8548f
Binary files /dev/null and b/question18/2020_05_20_0240_Reflectance_5.tif differ
diff --git a/question18/2020_06_03_0250_Reflectance_17.tif b/question18/2020_06_03_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..16b5205a50022579f40a28b372610203b8b9a72c
Binary files /dev/null and b/question18/2020_06_03_0250_Reflectance_17.tif differ
diff --git a/question18/2020_06_03_0250_Reflectance_18.tif b/question18/2020_06_03_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c0cdbeb8759b55e3bac19bf8b9df0ad60bf7915b
Binary files /dev/null and b/question18/2020_06_03_0250_Reflectance_18.tif differ
diff --git a/question18/2020_06_03_0250_Reflectance_19.tif b/question18/2020_06_03_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..23e936b58c946d516604ca07b84d8e3008999d51
Binary files /dev/null and b/question18/2020_06_03_0250_Reflectance_19.tif differ
diff --git a/question18/2020_06_03_0250_Reflectance_2.tif b/question18/2020_06_03_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b8e2ed60cb8180b0e791e721555bb5bd5ef439ee
Binary files /dev/null and b/question18/2020_06_03_0250_Reflectance_2.tif differ
diff --git a/question18/2020_06_03_0250_Reflectance_5.tif b/question18/2020_06_03_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..776b3a5123b1a50f1cedb6c5b3d71e10e8b761f7
Binary files /dev/null and b/question18/2020_06_03_0250_Reflectance_5.tif differ
diff --git a/question18/2020_06_17_0305_Reflectance_17.tif b/question18/2020_06_17_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8817a942b6d24abc6c3d918dfeee202e9892aecb
Binary files /dev/null and b/question18/2020_06_17_0305_Reflectance_17.tif differ
diff --git a/question18/2020_06_17_0305_Reflectance_18.tif b/question18/2020_06_17_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4dafedb8b0ea24ad2ed692534d5482958b122f1b
Binary files /dev/null and b/question18/2020_06_17_0305_Reflectance_18.tif differ
diff --git a/question18/2020_06_17_0305_Reflectance_19.tif b/question18/2020_06_17_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..191dfc7a8615feda7e2acee419eabd732993f28d
Binary files /dev/null and b/question18/2020_06_17_0305_Reflectance_19.tif differ
diff --git a/question18/2020_06_17_0305_Reflectance_2.tif b/question18/2020_06_17_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..af99401c3bfee4ba349b3e85304052e1c1d02ee1
Binary files /dev/null and b/question18/2020_06_17_0305_Reflectance_2.tif differ
diff --git a/question18/2020_06_17_0305_Reflectance_5.tif b/question18/2020_06_17_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4ec1eb0a36ed2e37e025bb3986eed830aa57261f
Binary files /dev/null and b/question18/2020_06_17_0305_Reflectance_5.tif differ
diff --git a/question18/2020_07_01_0315_Reflectance_17.tif b/question18/2020_07_01_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d2fa6405f244d5bacd124bf06974e7ab20823e9d
Binary files /dev/null and b/question18/2020_07_01_0315_Reflectance_17.tif differ
diff --git a/question18/2020_07_01_0315_Reflectance_18.tif b/question18/2020_07_01_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..08d2355e71b17001d902f2b045e07dc5f9ac67cb
Binary files /dev/null and b/question18/2020_07_01_0315_Reflectance_18.tif differ
diff --git a/question18/2020_07_01_0315_Reflectance_19.tif b/question18/2020_07_01_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2f75d1cead97e3b5d98681c748cd995c5ba66c01
Binary files /dev/null and b/question18/2020_07_01_0315_Reflectance_19.tif differ
diff --git a/question18/2020_07_01_0315_Reflectance_2.tif b/question18/2020_07_01_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ed31a946231878bb661df32c71e15e8927390362
Binary files /dev/null and b/question18/2020_07_01_0315_Reflectance_2.tif differ
diff --git a/question18/2020_07_01_0315_Reflectance_5.tif b/question18/2020_07_01_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ef56ed6f2b1a8d40c5b59a0d010e0365aba29427
Binary files /dev/null and b/question18/2020_07_01_0315_Reflectance_5.tif differ
diff --git a/question18/2020_07_15_0330_Reflectance_17.tif b/question18/2020_07_15_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ee26d4f269b380d27f844dd9f91f558f20c87d7c
Binary files /dev/null and b/question18/2020_07_15_0330_Reflectance_17.tif differ
diff --git a/question18/2020_07_15_0330_Reflectance_18.tif b/question18/2020_07_15_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6d16220e930bb84dc68de455b1ed267dd521a64c
Binary files /dev/null and b/question18/2020_07_15_0330_Reflectance_18.tif differ
diff --git a/question18/2020_07_15_0330_Reflectance_19.tif b/question18/2020_07_15_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..eadf6aa3dd1672b2ba250825ca98042e479b2121
Binary files /dev/null and b/question18/2020_07_15_0330_Reflectance_19.tif differ
diff --git a/question18/2020_07_15_0330_Reflectance_2.tif b/question18/2020_07_15_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..64cc5c68d43913f3bf5a96cd42855b8299421b7e
Binary files /dev/null and b/question18/2020_07_15_0330_Reflectance_2.tif differ
diff --git a/question18/2020_07_15_0330_Reflectance_5.tif b/question18/2020_07_15_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b311b32dcc0b4f28900dd7fd8bc9c7eb39fd022e
Binary files /dev/null and b/question18/2020_07_15_0330_Reflectance_5.tif differ
diff --git a/question18/2020_07_29_0340_Reflectance_17.tif b/question18/2020_07_29_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..00b47bab47400ecadfbe291b69b6cd75f3aaa2f0
Binary files /dev/null and b/question18/2020_07_29_0340_Reflectance_17.tif differ
diff --git a/question18/2020_07_29_0340_Reflectance_18.tif b/question18/2020_07_29_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..69c6fe6d10ef6bb8bc3ac754ed4305bf938a94f8
Binary files /dev/null and b/question18/2020_07_29_0340_Reflectance_18.tif differ
diff --git a/question18/2020_07_29_0340_Reflectance_19.tif b/question18/2020_07_29_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e8027c88aef164094b972434043f3ee7c0734698
Binary files /dev/null and b/question18/2020_07_29_0340_Reflectance_19.tif differ
diff --git a/question18/2020_07_29_0340_Reflectance_2.tif b/question18/2020_07_29_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b49913a6f2cfa1d0a5f847211b5834426172ae8c
Binary files /dev/null and b/question18/2020_07_29_0340_Reflectance_2.tif differ
diff --git a/question18/2020_07_29_0340_Reflectance_5.tif b/question18/2020_07_29_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..32e6b451b1ec8dfd688cb7d58ecd79801bbf78d7
Binary files /dev/null and b/question18/2020_07_29_0340_Reflectance_5.tif differ
diff --git a/question18/2020_08_12_0350_Reflectance_17.tif b/question18/2020_08_12_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a5bccca69a2d5c55db1d5c926e7107a538617478
Binary files /dev/null and b/question18/2020_08_12_0350_Reflectance_17.tif differ
diff --git a/question18/2020_08_12_0350_Reflectance_18.tif b/question18/2020_08_12_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2cf6ae1f9f348a21374ff45e2fd05170cad2b262
Binary files /dev/null and b/question18/2020_08_12_0350_Reflectance_18.tif differ
diff --git a/question18/2020_08_12_0350_Reflectance_19.tif b/question18/2020_08_12_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..af7cfe7370ee01499aeacdf5d18ce0172c284da4
Binary files /dev/null and b/question18/2020_08_12_0350_Reflectance_19.tif differ
diff --git a/question18/2020_08_12_0350_Reflectance_2.tif b/question18/2020_08_12_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..23517f9a2036b89c25cb5bb2b807c9945fb7fcf2
Binary files /dev/null and b/question18/2020_08_12_0350_Reflectance_2.tif differ
diff --git a/question18/2020_08_12_0350_Reflectance_5.tif b/question18/2020_08_12_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c733e27f7b4d1e5fe8925523cc5189b4f12bf58e
Binary files /dev/null and b/question18/2020_08_12_0350_Reflectance_5.tif differ
diff --git a/question18/2020_08_26_0405_Reflectance_17.tif b/question18/2020_08_26_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5fb452fd3787463fd35f0f544187dfb0f1b4e592
Binary files /dev/null and b/question18/2020_08_26_0405_Reflectance_17.tif differ
diff --git a/question18/2020_08_26_0405_Reflectance_18.tif b/question18/2020_08_26_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2d0aaa520f10248b5f9f4e7dafe89bb186cc49dc
Binary files /dev/null and b/question18/2020_08_26_0405_Reflectance_18.tif differ
diff --git a/question18/2020_08_26_0405_Reflectance_19.tif b/question18/2020_08_26_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5c76c2304dbc3afd037ae640a7342731f9b52702
Binary files /dev/null and b/question18/2020_08_26_0405_Reflectance_19.tif differ
diff --git a/question18/2020_08_26_0405_Reflectance_2.tif b/question18/2020_08_26_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b87f84c8d40be91bd7fc646f19bfd95a61ccea6d
Binary files /dev/null and b/question18/2020_08_26_0405_Reflectance_2.tif differ
diff --git a/question18/2020_08_26_0405_Reflectance_5.tif b/question18/2020_08_26_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..272cb3cb871efc1c9b412a74ab068ac9cb722c55
Binary files /dev/null and b/question18/2020_08_26_0405_Reflectance_5.tif differ
diff --git a/question18/2020_09_09_0240_Reflectance_17.tif b/question18/2020_09_09_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a4124420b4c9b373f2462676c671c97d4f42eea6
Binary files /dev/null and b/question18/2020_09_09_0240_Reflectance_17.tif differ
diff --git a/question18/2020_09_09_0240_Reflectance_18.tif b/question18/2020_09_09_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ad0ffb8c90eaf15b3b7d2fb21e2a11e7f96952ae
Binary files /dev/null and b/question18/2020_09_09_0240_Reflectance_18.tif differ
diff --git a/question18/2020_09_09_0240_Reflectance_19.tif b/question18/2020_09_09_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b44f0f64003e6a2ac9f4d68ba06275d430f8f85c
Binary files /dev/null and b/question18/2020_09_09_0240_Reflectance_19.tif differ
diff --git a/question18/2020_09_09_0240_Reflectance_2.tif b/question18/2020_09_09_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9062ffa64daafdc58a3ec6ddc750154a8ede66ae
Binary files /dev/null and b/question18/2020_09_09_0240_Reflectance_2.tif differ
diff --git a/question18/2020_09_09_0240_Reflectance_5.tif b/question18/2020_09_09_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fcdc7087e092c1a0054b003e86bd93fc6d5de6c6
Binary files /dev/null and b/question18/2020_09_09_0240_Reflectance_5.tif differ
diff --git a/question18/2020_09_23_0250_Reflectance_17.tif b/question18/2020_09_23_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1a6196ddd1a3ae0067304e9256fe86dda8de1580
Binary files /dev/null and b/question18/2020_09_23_0250_Reflectance_17.tif differ
diff --git a/question18/2020_09_23_0250_Reflectance_18.tif b/question18/2020_09_23_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4000497242102fdcfa18cd0d8ed353dc8d19ed4e
Binary files /dev/null and b/question18/2020_09_23_0250_Reflectance_18.tif differ
diff --git a/question18/2020_09_23_0250_Reflectance_19.tif b/question18/2020_09_23_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6538cd6b83a5e39901608a19bde0a25e3cf679e7
Binary files /dev/null and b/question18/2020_09_23_0250_Reflectance_19.tif differ
diff --git a/question18/2020_09_23_0250_Reflectance_2.tif b/question18/2020_09_23_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fb149dd27062cf33c8e60c0702a0e1b177383553
Binary files /dev/null and b/question18/2020_09_23_0250_Reflectance_2.tif differ
diff --git a/question18/2020_09_23_0250_Reflectance_5.tif b/question18/2020_09_23_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d467d3f068a090ac63afd3414a1a6201199c7e4c
Binary files /dev/null and b/question18/2020_09_23_0250_Reflectance_5.tif differ
diff --git a/question18/2020_10_07_0305_Reflectance_17.tif b/question18/2020_10_07_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fa369ec84692602517d547a064ae439dd9481d9e
Binary files /dev/null and b/question18/2020_10_07_0305_Reflectance_17.tif differ
diff --git a/question18/2020_10_07_0305_Reflectance_18.tif b/question18/2020_10_07_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9df0d2d68d8c7d7b65884357041942b675a77cba
Binary files /dev/null and b/question18/2020_10_07_0305_Reflectance_18.tif differ
diff --git a/question18/2020_10_07_0305_Reflectance_19.tif b/question18/2020_10_07_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5b37b7f6ce4f6772acfd27b40a769e086ab952b0
Binary files /dev/null and b/question18/2020_10_07_0305_Reflectance_19.tif differ
diff --git a/question18/2020_10_07_0305_Reflectance_2.tif b/question18/2020_10_07_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..db5cbd33e9f8e5c2c6cc59c812e0ab57f95c1521
Binary files /dev/null and b/question18/2020_10_07_0305_Reflectance_2.tif differ
diff --git a/question18/2020_10_07_0305_Reflectance_5.tif b/question18/2020_10_07_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..661749d373c51432d84570c191707b2e28bf90fa
Binary files /dev/null and b/question18/2020_10_07_0305_Reflectance_5.tif differ
diff --git a/question18/2020_10_21_0315_Reflectance_17.tif b/question18/2020_10_21_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b427912f211f15569d14ffb8dfc175b345621331
Binary files /dev/null and b/question18/2020_10_21_0315_Reflectance_17.tif differ
diff --git a/question18/2020_10_21_0315_Reflectance_18.tif b/question18/2020_10_21_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4e8f41de665ba410fcc1d2abf87105e53a5bef83
Binary files /dev/null and b/question18/2020_10_21_0315_Reflectance_18.tif differ
diff --git a/question18/2020_10_21_0315_Reflectance_19.tif b/question18/2020_10_21_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d9ea3010bd82fcec30ad44fae2d577822d218ede
Binary files /dev/null and b/question18/2020_10_21_0315_Reflectance_19.tif differ
diff --git a/question18/2020_10_21_0315_Reflectance_2.tif b/question18/2020_10_21_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ee44c1fb98e856e390e98264f83fd1a3e0673203
Binary files /dev/null and b/question18/2020_10_21_0315_Reflectance_2.tif differ
diff --git a/question18/2020_10_21_0315_Reflectance_5.tif b/question18/2020_10_21_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..92261c569ed84ab2e625f72e639ead9b4157875b
Binary files /dev/null and b/question18/2020_10_21_0315_Reflectance_5.tif differ
diff --git a/question18/2020_11_04_0330_Reflectance_17.tif b/question18/2020_11_04_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..40d391992fb6ac2ac2ac756e2b753e6c5eb77aff
Binary files /dev/null and b/question18/2020_11_04_0330_Reflectance_17.tif differ
diff --git a/question18/2020_11_04_0330_Reflectance_18.tif b/question18/2020_11_04_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8e5fd393dac15f94f6b9e58e05e0e77f96ccd26f
Binary files /dev/null and b/question18/2020_11_04_0330_Reflectance_18.tif differ
diff --git a/question18/2020_11_04_0330_Reflectance_19.tif b/question18/2020_11_04_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..95612e5d0c41d8eab097bd615fcf68aacf7a7e24
Binary files /dev/null and b/question18/2020_11_04_0330_Reflectance_19.tif differ
diff --git a/question18/2020_11_04_0330_Reflectance_2.tif b/question18/2020_11_04_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6d15e637e4513c13b0703311427d74ffce8bfa89
Binary files /dev/null and b/question18/2020_11_04_0330_Reflectance_2.tif differ
diff --git a/question18/2020_11_04_0330_Reflectance_5.tif b/question18/2020_11_04_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6c72913aef28858833efab3b7eee966f2d959d14
Binary files /dev/null and b/question18/2020_11_04_0330_Reflectance_5.tif differ
diff --git a/question18/2020_11_18_0340_Reflectance_17.tif b/question18/2020_11_18_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8820731a70f72f6d2b70490cfd0b7e689e6af514
Binary files /dev/null and b/question18/2020_11_18_0340_Reflectance_17.tif differ
diff --git a/question18/2020_11_18_0340_Reflectance_18.tif b/question18/2020_11_18_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3c14d5b9a36addcc0b188cf5769bf046b83cf1dd
Binary files /dev/null and b/question18/2020_11_18_0340_Reflectance_18.tif differ
diff --git a/question18/2020_11_18_0340_Reflectance_19.tif b/question18/2020_11_18_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cefca88051276c40b45e7707bad885cd96fb888d
Binary files /dev/null and b/question18/2020_11_18_0340_Reflectance_19.tif differ
diff --git a/question18/2020_11_18_0340_Reflectance_2.tif b/question18/2020_11_18_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..194c23f42ec86a76412cf186a9af3b1961915f8c
Binary files /dev/null and b/question18/2020_11_18_0340_Reflectance_2.tif differ
diff --git a/question18/2020_11_18_0340_Reflectance_5.tif b/question18/2020_11_18_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a03ae77eb9f6dcfc188d6f37d0919a4bc9670826
Binary files /dev/null and b/question18/2020_11_18_0340_Reflectance_5.tif differ
diff --git a/question18/2020_12_02_0350_Reflectance_17.tif b/question18/2020_12_02_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f893895e1cddc4d041c6bdfae7309d5f6328f427
Binary files /dev/null and b/question18/2020_12_02_0350_Reflectance_17.tif differ
diff --git a/question18/2020_12_02_0350_Reflectance_18.tif b/question18/2020_12_02_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..671c9de32802ee7d156f1831b4315d7b3de6a938
Binary files /dev/null and b/question18/2020_12_02_0350_Reflectance_18.tif differ
diff --git a/question18/2020_12_02_0350_Reflectance_19.tif b/question18/2020_12_02_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bdc6f28c7fcfc346e753c399bcfecc62149f8991
Binary files /dev/null and b/question18/2020_12_02_0350_Reflectance_19.tif differ
diff --git a/question18/2020_12_02_0350_Reflectance_2.tif b/question18/2020_12_02_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b4710493cf0f686761889aa90df51adc05dcff68
Binary files /dev/null and b/question18/2020_12_02_0350_Reflectance_2.tif differ
diff --git a/question18/2020_12_02_0350_Reflectance_5.tif b/question18/2020_12_02_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..354ad2e28428f17f12fb8e8ea104c083d54afadb
Binary files /dev/null and b/question18/2020_12_02_0350_Reflectance_5.tif differ
diff --git a/question18/2020_12_16_0405_Reflectance_17.tif b/question18/2020_12_16_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d7e30333dba30a5401f94c6ae68374bac6d16208
Binary files /dev/null and b/question18/2020_12_16_0405_Reflectance_17.tif differ
diff --git a/question18/2020_12_16_0405_Reflectance_18.tif b/question18/2020_12_16_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..79ab0209f21f36df90491deeec5026e09353edfe
Binary files /dev/null and b/question18/2020_12_16_0405_Reflectance_18.tif differ
diff --git a/question18/2020_12_16_0405_Reflectance_19.tif b/question18/2020_12_16_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..588948970d5ba0212570b4d48648662a22810581
Binary files /dev/null and b/question18/2020_12_16_0405_Reflectance_19.tif differ
diff --git a/question18/2020_12_16_0405_Reflectance_2.tif b/question18/2020_12_16_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..281efd20453253702a5af7b2e37952e066654ae1
Binary files /dev/null and b/question18/2020_12_16_0405_Reflectance_2.tif differ
diff --git a/question18/2020_12_16_0405_Reflectance_5.tif b/question18/2020_12_16_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..47ba8c430328c9b117560ff0f940075879f11bea
Binary files /dev/null and b/question18/2020_12_16_0405_Reflectance_5.tif differ
diff --git a/question18/2020_12_30_0240_Reflectance_17.tif b/question18/2020_12_30_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..04bd41ed3581595873aaa302b48cd97c400d2137
Binary files /dev/null and b/question18/2020_12_30_0240_Reflectance_17.tif differ
diff --git a/question18/2020_12_30_0240_Reflectance_18.tif b/question18/2020_12_30_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5ac61ca46caec408f7c180252781c860e1cc145a
Binary files /dev/null and b/question18/2020_12_30_0240_Reflectance_18.tif differ
diff --git a/question18/2020_12_30_0240_Reflectance_19.tif b/question18/2020_12_30_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0729353573dea6382959580bea6b225108494ff2
Binary files /dev/null and b/question18/2020_12_30_0240_Reflectance_19.tif differ
diff --git a/question18/2020_12_30_0240_Reflectance_2.tif b/question18/2020_12_30_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8da3a6f82b82b65fa24fdb2f472dcd0b0e5b6343
Binary files /dev/null and b/question18/2020_12_30_0240_Reflectance_2.tif differ
diff --git a/question18/2020_12_30_0240_Reflectance_5.tif b/question18/2020_12_30_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7a3a8ab6a4c8525986f3dbf49d7873d28d6740e1
Binary files /dev/null and b/question18/2020_12_30_0240_Reflectance_5.tif differ
diff --git a/question18/2021_01_01_0405_Reflectance_17.tif b/question18/2021_01_01_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3e9bb58fe2287d7e9552e1a899f8168a3f03adaf
Binary files /dev/null and b/question18/2021_01_01_0405_Reflectance_17.tif differ
diff --git a/question18/2021_01_01_0405_Reflectance_18.tif b/question18/2021_01_01_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..dd4beb4707e7d3d93efc416481037ea7c5ffb2c3
Binary files /dev/null and b/question18/2021_01_01_0405_Reflectance_18.tif differ
diff --git a/question18/2021_01_01_0405_Reflectance_19.tif b/question18/2021_01_01_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6a287130ef8d71827fbdab882143b988548f63e0
Binary files /dev/null and b/question18/2021_01_01_0405_Reflectance_19.tif differ
diff --git a/question18/2021_01_01_0405_Reflectance_2.tif b/question18/2021_01_01_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7a8feba2cef31bebcc444015dd77546c9020a0b9
Binary files /dev/null and b/question18/2021_01_01_0405_Reflectance_2.tif differ
diff --git a/question18/2021_01_01_0405_Reflectance_5.tif b/question18/2021_01_01_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a94300a1e3eb049506592418ac994f6696ca71e5
Binary files /dev/null and b/question18/2021_01_01_0405_Reflectance_5.tif differ
diff --git a/question18/2021_01_15_0240_Reflectance_17.tif b/question18/2021_01_15_0240_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cf0c8891c1ac66ec332f06ff5a2c18f4b6109ecf
Binary files /dev/null and b/question18/2021_01_15_0240_Reflectance_17.tif differ
diff --git a/question18/2021_01_15_0240_Reflectance_18.tif b/question18/2021_01_15_0240_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fa8a565933bfec5aa2214a93120c55adfbae3391
Binary files /dev/null and b/question18/2021_01_15_0240_Reflectance_18.tif differ
diff --git a/question18/2021_01_15_0240_Reflectance_19.tif b/question18/2021_01_15_0240_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..97ea94f460464454ebec4be6d1d270ffb05f5e71
Binary files /dev/null and b/question18/2021_01_15_0240_Reflectance_19.tif differ
diff --git a/question18/2021_01_15_0240_Reflectance_2.tif b/question18/2021_01_15_0240_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fc55d7b7f8ad1d10aecf14b11962991c8010a231
Binary files /dev/null and b/question18/2021_01_15_0240_Reflectance_2.tif differ
diff --git a/question18/2021_01_15_0240_Reflectance_5.tif b/question18/2021_01_15_0240_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1cf8638996909285cfb812305a4d02ed9ec93a3a
Binary files /dev/null and b/question18/2021_01_15_0240_Reflectance_5.tif differ
diff --git a/question18/2021_01_29_0250_Reflectance_17.tif b/question18/2021_01_29_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2bbf180b9f99d3dba09fd0e43c6806619610a390
Binary files /dev/null and b/question18/2021_01_29_0250_Reflectance_17.tif differ
diff --git a/question18/2021_01_29_0250_Reflectance_18.tif b/question18/2021_01_29_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..98add88f0a3f0315af2e67860958cb7d5f4da07f
Binary files /dev/null and b/question18/2021_01_29_0250_Reflectance_18.tif differ
diff --git a/question18/2021_01_29_0250_Reflectance_19.tif b/question18/2021_01_29_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..345ebc3357c81e49f502934e1d3b1e8bd80037d1
Binary files /dev/null and b/question18/2021_01_29_0250_Reflectance_19.tif differ
diff --git a/question18/2021_01_29_0250_Reflectance_2.tif b/question18/2021_01_29_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2d60df57d9b5fe11224f5a942011798e3f6a05cf
Binary files /dev/null and b/question18/2021_01_29_0250_Reflectance_2.tif differ
diff --git a/question18/2021_01_29_0250_Reflectance_5.tif b/question18/2021_01_29_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..559dd7f683a5f73592c708a6abddc82145514b2b
Binary files /dev/null and b/question18/2021_01_29_0250_Reflectance_5.tif differ
diff --git a/question18/2021_02_12_0305_Reflectance_17.tif b/question18/2021_02_12_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1c077420165b8211bcd26845d3dc1a36660f9376
Binary files /dev/null and b/question18/2021_02_12_0305_Reflectance_17.tif differ
diff --git a/question18/2021_02_12_0305_Reflectance_18.tif b/question18/2021_02_12_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..83cb752f5f6f2a5bdaf16bb9ef0fb47505456d6f
Binary files /dev/null and b/question18/2021_02_12_0305_Reflectance_18.tif differ
diff --git a/question18/2021_02_12_0305_Reflectance_19.tif b/question18/2021_02_12_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d6650326aa9a433433f132485bae6d50cb13a5c8
Binary files /dev/null and b/question18/2021_02_12_0305_Reflectance_19.tif differ
diff --git a/question18/2021_02_12_0305_Reflectance_2.tif b/question18/2021_02_12_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b62594509c34260e8e0ffdcb4de10abd873d299d
Binary files /dev/null and b/question18/2021_02_12_0305_Reflectance_2.tif differ
diff --git a/question18/2021_02_12_0305_Reflectance_5.tif b/question18/2021_02_12_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8ee2ddab8fdf4f8ffb04481c3c7f928a201d99ee
Binary files /dev/null and b/question18/2021_02_12_0305_Reflectance_5.tif differ
diff --git a/question18/2021_02_26_0315_Reflectance_17.tif b/question18/2021_02_26_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b3e0125bdc87f58e64880b042f487723ade3cf0a
Binary files /dev/null and b/question18/2021_02_26_0315_Reflectance_17.tif differ
diff --git a/question18/2021_02_26_0315_Reflectance_18.tif b/question18/2021_02_26_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9bce599b1f4b77332bd236f9331b18a42ec064b7
Binary files /dev/null and b/question18/2021_02_26_0315_Reflectance_18.tif differ
diff --git a/question18/2021_02_26_0315_Reflectance_19.tif b/question18/2021_02_26_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3324fe382242c8cb4ab95a31c965cbe26380b346
Binary files /dev/null and b/question18/2021_02_26_0315_Reflectance_19.tif differ
diff --git a/question18/2021_02_26_0315_Reflectance_2.tif b/question18/2021_02_26_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9b3ba29e383e014d9fd71d924b4fde316f8d60d5
Binary files /dev/null and b/question18/2021_02_26_0315_Reflectance_2.tif differ
diff --git a/question18/2021_02_26_0315_Reflectance_5.tif b/question18/2021_02_26_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..680c350978cb9ae2a32364823ecc065532c05532
Binary files /dev/null and b/question18/2021_02_26_0315_Reflectance_5.tif differ
diff --git a/question18/2021_03_12_0325_Reflectance_17.tif b/question18/2021_03_12_0325_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..37fbee71bdc4a6d4463da9b55329b03bb29b6989
Binary files /dev/null and b/question18/2021_03_12_0325_Reflectance_17.tif differ
diff --git a/question18/2021_03_12_0325_Reflectance_18.tif b/question18/2021_03_12_0325_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4a3db09f41250181e0d75f70681472284f8bb3cd
Binary files /dev/null and b/question18/2021_03_12_0325_Reflectance_18.tif differ
diff --git a/question18/2021_03_12_0325_Reflectance_19.tif b/question18/2021_03_12_0325_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..95ac198d1b1cfeeb4fdc8aa0a801b4371afe5dbd
Binary files /dev/null and b/question18/2021_03_12_0325_Reflectance_19.tif differ
diff --git a/question18/2021_03_12_0325_Reflectance_2.tif b/question18/2021_03_12_0325_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f30aa9867ea372549167f3725ba6a0f62c1943d3
Binary files /dev/null and b/question18/2021_03_12_0325_Reflectance_2.tif differ
diff --git a/question18/2021_03_12_0325_Reflectance_5.tif b/question18/2021_03_12_0325_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..66e60b258689ea41fc331be64ec9c5816e4d551f
Binary files /dev/null and b/question18/2021_03_12_0325_Reflectance_5.tif differ
diff --git a/question18/2021_03_26_0340_Reflectance_17.tif b/question18/2021_03_26_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..981a3d3bc3b53bbb07976622e86bdff54c65ba16
Binary files /dev/null and b/question18/2021_03_26_0340_Reflectance_17.tif differ
diff --git a/question18/2021_03_26_0340_Reflectance_18.tif b/question18/2021_03_26_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..afbac83024c6d1a579abe7e2741539b8b1f22a46
Binary files /dev/null and b/question18/2021_03_26_0340_Reflectance_18.tif differ
diff --git a/question18/2021_03_26_0340_Reflectance_19.tif b/question18/2021_03_26_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5aed270caca597aed7e9a61483216c6e51549393
Binary files /dev/null and b/question18/2021_03_26_0340_Reflectance_19.tif differ
diff --git a/question18/2021_03_26_0340_Reflectance_2.tif b/question18/2021_03_26_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8b59fd54fb9b64144b396a89ad1eedde778186d3
Binary files /dev/null and b/question18/2021_03_26_0340_Reflectance_2.tif differ
diff --git a/question18/2021_03_26_0340_Reflectance_5.tif b/question18/2021_03_26_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..40625cad4d908d3c6e9913beb4cde7cf7d01d949
Binary files /dev/null and b/question18/2021_03_26_0340_Reflectance_5.tif differ
diff --git a/question18/2021_04_09_0350_Reflectance_17.tif b/question18/2021_04_09_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4baf3d2bb95eb0b4207bc92e1a3b86da57b348c7
Binary files /dev/null and b/question18/2021_04_09_0350_Reflectance_17.tif differ
diff --git a/question18/2021_04_09_0350_Reflectance_18.tif b/question18/2021_04_09_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a1a2d55fdc2ef0eabf88a26a8f61b21b2f6d129f
Binary files /dev/null and b/question18/2021_04_09_0350_Reflectance_18.tif differ
diff --git a/question18/2021_04_09_0350_Reflectance_19.tif b/question18/2021_04_09_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9f0e3a6dfa12bad24a1e248d0329ca83521e2491
Binary files /dev/null and b/question18/2021_04_09_0350_Reflectance_19.tif differ
diff --git a/question18/2021_04_09_0350_Reflectance_2.tif b/question18/2021_04_09_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..427b87c3faecd25c01d9089d6faa3baffb2e2628
Binary files /dev/null and b/question18/2021_04_09_0350_Reflectance_2.tif differ
diff --git a/question18/2021_04_09_0350_Reflectance_5.tif b/question18/2021_04_09_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..646006744d1c121ed8f3ab49779bfff4b05a3117
Binary files /dev/null and b/question18/2021_04_09_0350_Reflectance_5.tif differ
diff --git a/question18/2021_04_23_0405_Reflectance_17.tif b/question18/2021_04_23_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0f0571d42b93a9cd19e96d574c306a534f0c1ecd
Binary files /dev/null and b/question18/2021_04_23_0405_Reflectance_17.tif differ
diff --git a/question18/2021_04_23_0405_Reflectance_18.tif b/question18/2021_04_23_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3f55b33e2d574a4ae34254b5a03f4c4f0b8c4169
Binary files /dev/null and b/question18/2021_04_23_0405_Reflectance_18.tif differ
diff --git a/question18/2021_04_23_0405_Reflectance_19.tif b/question18/2021_04_23_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b7f95d92029dca8a455d3c6982d716c9e69bcda2
Binary files /dev/null and b/question18/2021_04_23_0405_Reflectance_19.tif differ
diff --git a/question18/2021_04_23_0405_Reflectance_2.tif b/question18/2021_04_23_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d82baa8478852c58dc64756ef19e99b05625093d
Binary files /dev/null and b/question18/2021_04_23_0405_Reflectance_2.tif differ
diff --git a/question18/2021_04_23_0405_Reflectance_5.tif b/question18/2021_04_23_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9a42a649ee5e1938db45e80e77d1b14d16b229bb
Binary files /dev/null and b/question18/2021_04_23_0405_Reflectance_5.tif differ
diff --git a/question18/2021_05_07_0235_Reflectance_17.tif b/question18/2021_05_07_0235_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fc99617ede6ffbda357af7753b52923c08d6d2d3
Binary files /dev/null and b/question18/2021_05_07_0235_Reflectance_17.tif differ
diff --git a/question18/2021_05_07_0235_Reflectance_18.tif b/question18/2021_05_07_0235_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f693ac9c6aa7644d782ebfc802c8bdd1d36330dd
Binary files /dev/null and b/question18/2021_05_07_0235_Reflectance_18.tif differ
diff --git a/question18/2021_05_07_0235_Reflectance_19.tif b/question18/2021_05_07_0235_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c47d128e55a1dacf5cb284c4183280fdcdf168ff
Binary files /dev/null and b/question18/2021_05_07_0235_Reflectance_19.tif differ
diff --git a/question18/2021_05_07_0235_Reflectance_2.tif b/question18/2021_05_07_0235_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f11a24647060880c5c0ac7980eded74c8489fb1c
Binary files /dev/null and b/question18/2021_05_07_0235_Reflectance_2.tif differ
diff --git a/question18/2021_05_07_0235_Reflectance_5.tif b/question18/2021_05_07_0235_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..65848a71ca1f6182f3ff7a0436610effb57ca2e8
Binary files /dev/null and b/question18/2021_05_07_0235_Reflectance_5.tif differ
diff --git a/question18/2021_05_21_0250_Reflectance_17.tif b/question18/2021_05_21_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..690ec2ed8096eef9163498c3257a3884cf06be0f
Binary files /dev/null and b/question18/2021_05_21_0250_Reflectance_17.tif differ
diff --git a/question18/2021_05_21_0250_Reflectance_18.tif b/question18/2021_05_21_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..44542c356781d2e60eb9a5a9476d64dc27a0f296
Binary files /dev/null and b/question18/2021_05_21_0250_Reflectance_18.tif differ
diff --git a/question18/2021_05_21_0250_Reflectance_19.tif b/question18/2021_05_21_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bcf75d78b14158508e12b7c13b1b32892554c9a4
Binary files /dev/null and b/question18/2021_05_21_0250_Reflectance_19.tif differ
diff --git a/question18/2021_05_21_0250_Reflectance_2.tif b/question18/2021_05_21_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fbc7fc198c27cf04906804de90851b49c37e6cb5
Binary files /dev/null and b/question18/2021_05_21_0250_Reflectance_2.tif differ
diff --git a/question18/2021_05_21_0250_Reflectance_5.tif b/question18/2021_05_21_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5030e296f627945108e6eedaef831473c514bc45
Binary files /dev/null and b/question18/2021_05_21_0250_Reflectance_5.tif differ
diff --git a/question18/2021_06_04_0300_Reflectance_17.tif b/question18/2021_06_04_0300_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9a41ad9e2a7362f8659b734dfd90507db17ff2e4
Binary files /dev/null and b/question18/2021_06_04_0300_Reflectance_17.tif differ
diff --git a/question18/2021_06_04_0300_Reflectance_18.tif b/question18/2021_06_04_0300_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0ae339b03e88255d6d2c5acf59795214426b20c0
Binary files /dev/null and b/question18/2021_06_04_0300_Reflectance_18.tif differ
diff --git a/question18/2021_06_04_0300_Reflectance_19.tif b/question18/2021_06_04_0300_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..49444e0a33180407e0a17b11d6bb79548900ff98
Binary files /dev/null and b/question18/2021_06_04_0300_Reflectance_19.tif differ
diff --git a/question18/2021_06_04_0300_Reflectance_2.tif b/question18/2021_06_04_0300_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0b913a27cb8bdfafc1f85257b224ac5b97e8ccd9
Binary files /dev/null and b/question18/2021_06_04_0300_Reflectance_2.tif differ
diff --git a/question18/2021_06_04_0300_Reflectance_5.tif b/question18/2021_06_04_0300_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..003c064143960ad5eb65ffe9478afa76398181dc
Binary files /dev/null and b/question18/2021_06_04_0300_Reflectance_5.tif differ
diff --git a/question18/2021_06_18_0315_Reflectance_17.tif b/question18/2021_06_18_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..80866b4a9a8706f95785103a1b45580704806b4c
Binary files /dev/null and b/question18/2021_06_18_0315_Reflectance_17.tif differ
diff --git a/question18/2021_06_18_0315_Reflectance_18.tif b/question18/2021_06_18_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0e962dab2e059f75d4ec4a1c91cddb0257c1f56f
Binary files /dev/null and b/question18/2021_06_18_0315_Reflectance_18.tif differ
diff --git a/question18/2021_06_18_0315_Reflectance_19.tif b/question18/2021_06_18_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c92a0636c31f8c23f999686fbfcdb829a4bd3e6a
Binary files /dev/null and b/question18/2021_06_18_0315_Reflectance_19.tif differ
diff --git a/question18/2021_06_18_0315_Reflectance_2.tif b/question18/2021_06_18_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c5e5b42f951822ffb5058d2c03442a30af1e1358
Binary files /dev/null and b/question18/2021_06_18_0315_Reflectance_2.tif differ
diff --git a/question18/2021_06_18_0315_Reflectance_5.tif b/question18/2021_06_18_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c412bff2aca36323e59308444c285b514fea8478
Binary files /dev/null and b/question18/2021_06_18_0315_Reflectance_5.tif differ
diff --git a/question18/2021_07_02_0325_Reflectance_17.tif b/question18/2021_07_02_0325_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4950e0282ae866b4799d8ff8037d094954e4bdfb
Binary files /dev/null and b/question18/2021_07_02_0325_Reflectance_17.tif differ
diff --git a/question18/2021_07_02_0325_Reflectance_18.tif b/question18/2021_07_02_0325_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c4032ec67280617f846af575320e96f170dfacff
Binary files /dev/null and b/question18/2021_07_02_0325_Reflectance_18.tif differ
diff --git a/question18/2021_07_02_0325_Reflectance_19.tif b/question18/2021_07_02_0325_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9a3971c98954366a04532bd84c92079981cd707d
Binary files /dev/null and b/question18/2021_07_02_0325_Reflectance_19.tif differ
diff --git a/question18/2021_07_02_0325_Reflectance_2.tif b/question18/2021_07_02_0325_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..274284f15ffa0c4d76c80fa7f5057dcfc62ca3ab
Binary files /dev/null and b/question18/2021_07_02_0325_Reflectance_2.tif differ
diff --git a/question18/2021_07_02_0325_Reflectance_5.tif b/question18/2021_07_02_0325_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fce55000969b94c7e3849e7cbc887b27a454a407
Binary files /dev/null and b/question18/2021_07_02_0325_Reflectance_5.tif differ
diff --git a/question18/2021_07_16_0335_Reflectance_17.tif b/question18/2021_07_16_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..831de8e1791bb58c3db04337deff7c1bb21e80f3
Binary files /dev/null and b/question18/2021_07_16_0335_Reflectance_17.tif differ
diff --git a/question18/2021_07_16_0335_Reflectance_18.tif b/question18/2021_07_16_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..423f8bdfea09b5ac427d3d1aab3d16e062e4e3d4
Binary files /dev/null and b/question18/2021_07_16_0335_Reflectance_18.tif differ
diff --git a/question18/2021_07_16_0335_Reflectance_19.tif b/question18/2021_07_16_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..64d13371ea5b8c697803f9203f9b1c419a525d67
Binary files /dev/null and b/question18/2021_07_16_0335_Reflectance_19.tif differ
diff --git a/question18/2021_07_16_0335_Reflectance_2.tif b/question18/2021_07_16_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..18326241eb4f29fb27b924d50e4a509898795a5f
Binary files /dev/null and b/question18/2021_07_16_0335_Reflectance_2.tif differ
diff --git a/question18/2021_07_16_0335_Reflectance_5.tif b/question18/2021_07_16_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ae160a31b0a6805fa9757ea317dac4d1fcb43815
Binary files /dev/null and b/question18/2021_07_16_0335_Reflectance_5.tif differ
diff --git a/question18/2021_07_30_0350_Reflectance_17.tif b/question18/2021_07_30_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2821daeab2b83cdad95ff71139642310b2505f77
Binary files /dev/null and b/question18/2021_07_30_0350_Reflectance_17.tif differ
diff --git a/question18/2021_07_30_0350_Reflectance_18.tif b/question18/2021_07_30_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5db74571c62446e75ea1883fff76deba3978d390
Binary files /dev/null and b/question18/2021_07_30_0350_Reflectance_18.tif differ
diff --git a/question18/2021_07_30_0350_Reflectance_19.tif b/question18/2021_07_30_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..21efb5b367ecd9776df08be5d4d2fc1ca86278d4
Binary files /dev/null and b/question18/2021_07_30_0350_Reflectance_19.tif differ
diff --git a/question18/2021_07_30_0350_Reflectance_2.tif b/question18/2021_07_30_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..eb76eba4bd7b49761f79683e71b70d98f699866c
Binary files /dev/null and b/question18/2021_07_30_0350_Reflectance_2.tif differ
diff --git a/question18/2021_07_30_0350_Reflectance_5.tif b/question18/2021_07_30_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f91f36578a6760c89724ea799096a048c058dc1e
Binary files /dev/null and b/question18/2021_07_30_0350_Reflectance_5.tif differ
diff --git a/question18/2021_08_13_0400_Reflectance_17.tif b/question18/2021_08_13_0400_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ac3aa785892bde0f9a29cf7892d650fae2070bea
Binary files /dev/null and b/question18/2021_08_13_0400_Reflectance_17.tif differ
diff --git a/question18/2021_08_13_0400_Reflectance_18.tif b/question18/2021_08_13_0400_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..02329133a507eb7eb5987697a30dfe8226d4de58
Binary files /dev/null and b/question18/2021_08_13_0400_Reflectance_18.tif differ
diff --git a/question18/2021_08_13_0400_Reflectance_19.tif b/question18/2021_08_13_0400_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1dc61c5bcafa892fba920f6b905a659fbdf123f3
Binary files /dev/null and b/question18/2021_08_13_0400_Reflectance_19.tif differ
diff --git a/question18/2021_08_13_0400_Reflectance_2.tif b/question18/2021_08_13_0400_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..836958d1bd75e5fc7d85f02b96d0233ad10c1a82
Binary files /dev/null and b/question18/2021_08_13_0400_Reflectance_2.tif differ
diff --git a/question18/2021_08_13_0400_Reflectance_5.tif b/question18/2021_08_13_0400_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..addb24360b3b5fe1f7068956417e63c4bf47ce29
Binary files /dev/null and b/question18/2021_08_13_0400_Reflectance_5.tif differ
diff --git a/question18/2021_08_27_0235_Reflectance_17.tif b/question18/2021_08_27_0235_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3b7b9350fa05a5b55a1ca95ef1db51e39e219afa
Binary files /dev/null and b/question18/2021_08_27_0235_Reflectance_17.tif differ
diff --git a/question18/2021_08_27_0235_Reflectance_18.tif b/question18/2021_08_27_0235_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a290f1f3fb80e97042efc0a0fc0ab8d2c21994ba
Binary files /dev/null and b/question18/2021_08_27_0235_Reflectance_18.tif differ
diff --git a/question18/2021_08_27_0235_Reflectance_19.tif b/question18/2021_08_27_0235_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b187b8cbc9603c0e1e116ea7b28e0b06b12b1f37
Binary files /dev/null and b/question18/2021_08_27_0235_Reflectance_19.tif differ
diff --git a/question18/2021_08_27_0235_Reflectance_2.tif b/question18/2021_08_27_0235_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..08cecb5cdf6bafbb77e100ee5b09112408032ad2
Binary files /dev/null and b/question18/2021_08_27_0235_Reflectance_2.tif differ
diff --git a/question18/2021_08_27_0235_Reflectance_5.tif b/question18/2021_08_27_0235_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..31314c4beb78dda1e9030757e3329114386ccd09
Binary files /dev/null and b/question18/2021_08_27_0235_Reflectance_5.tif differ
diff --git a/question18/2021_09_10_0245_Reflectance_17.tif b/question18/2021_09_10_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..68c2768467be2e07f550c3c02fad520f14e2e072
Binary files /dev/null and b/question18/2021_09_10_0245_Reflectance_17.tif differ
diff --git a/question18/2021_09_10_0245_Reflectance_18.tif b/question18/2021_09_10_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..36b9cb73fab4525913a5e88249a6841cd68badd9
Binary files /dev/null and b/question18/2021_09_10_0245_Reflectance_18.tif differ
diff --git a/question18/2021_09_10_0245_Reflectance_19.tif b/question18/2021_09_10_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c47e1e4cb234948e17c4fac16e3e7bdc80563ac3
Binary files /dev/null and b/question18/2021_09_10_0245_Reflectance_19.tif differ
diff --git a/question18/2021_09_10_0245_Reflectance_2.tif b/question18/2021_09_10_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a0d020a91e6cd520e94ea0fc352712c22718534f
Binary files /dev/null and b/question18/2021_09_10_0245_Reflectance_2.tif differ
diff --git a/question18/2021_09_10_0245_Reflectance_5.tif b/question18/2021_09_10_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2eb4b0eb6066b3c8c38455554bc5c07eef51e099
Binary files /dev/null and b/question18/2021_09_10_0245_Reflectance_5.tif differ
diff --git a/question18/2021_09_24_0300_Reflectance_17.tif b/question18/2021_09_24_0300_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..82e46a7491e70d1f854068db6d0850bd0d024fd5
Binary files /dev/null and b/question18/2021_09_24_0300_Reflectance_17.tif differ
diff --git a/question18/2021_09_24_0300_Reflectance_18.tif b/question18/2021_09_24_0300_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c311154d0c0aa4dd49d64737a4f179bdfa88a4fc
Binary files /dev/null and b/question18/2021_09_24_0300_Reflectance_18.tif differ
diff --git a/question18/2021_09_24_0300_Reflectance_19.tif b/question18/2021_09_24_0300_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..37554e787c2609dfefb924c0488b7831196ca85b
Binary files /dev/null and b/question18/2021_09_24_0300_Reflectance_19.tif differ
diff --git a/question18/2021_09_24_0300_Reflectance_2.tif b/question18/2021_09_24_0300_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..933cebff04f7b907a38a0e0b9d5dd5308a074bdc
Binary files /dev/null and b/question18/2021_09_24_0300_Reflectance_2.tif differ
diff --git a/question18/2021_09_24_0300_Reflectance_5.tif b/question18/2021_09_24_0300_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7fea0e1e67c3e231cc30dd58a6fecfcc690d9581
Binary files /dev/null and b/question18/2021_09_24_0300_Reflectance_5.tif differ
diff --git a/question18/2021_10_08_0310_Reflectance_17.tif b/question18/2021_10_08_0310_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1330fa21e69df37f96e0fce3cec3aee8778cf362
Binary files /dev/null and b/question18/2021_10_08_0310_Reflectance_17.tif differ
diff --git a/question18/2021_10_08_0310_Reflectance_18.tif b/question18/2021_10_08_0310_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9e2ce956000cce59476727676704fb620acc93d9
Binary files /dev/null and b/question18/2021_10_08_0310_Reflectance_18.tif differ
diff --git a/question18/2021_10_08_0310_Reflectance_19.tif b/question18/2021_10_08_0310_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4faeb3f421c1ec4257f3d9b0d2b5740867bc0895
Binary files /dev/null and b/question18/2021_10_08_0310_Reflectance_19.tif differ
diff --git a/question18/2021_10_08_0310_Reflectance_2.tif b/question18/2021_10_08_0310_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d45a0ca16a2fe3812167e2585bf580798b964ee8
Binary files /dev/null and b/question18/2021_10_08_0310_Reflectance_2.tif differ
diff --git a/question18/2021_10_08_0310_Reflectance_5.tif b/question18/2021_10_08_0310_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..47124e778143fcd7f3ec6199ce9a7e76f6bb883c
Binary files /dev/null and b/question18/2021_10_08_0310_Reflectance_5.tif differ
diff --git a/question18/2021_10_22_0325_Reflectance_17.tif b/question18/2021_10_22_0325_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e26f04cfa03c673dedb3e86ae0be6c1537f70529
Binary files /dev/null and b/question18/2021_10_22_0325_Reflectance_17.tif differ
diff --git a/question18/2021_10_22_0325_Reflectance_18.tif b/question18/2021_10_22_0325_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..36f28f093890d607cc6a1ef57ecf38e3191ac900
Binary files /dev/null and b/question18/2021_10_22_0325_Reflectance_18.tif differ
diff --git a/question18/2021_10_22_0325_Reflectance_19.tif b/question18/2021_10_22_0325_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..536b081a190d7b852634012c77c3647e1f6baf19
Binary files /dev/null and b/question18/2021_10_22_0325_Reflectance_19.tif differ
diff --git a/question18/2021_10_22_0325_Reflectance_2.tif b/question18/2021_10_22_0325_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..24cc869a13bc8bb30fa8125ba634ab81d66a7dc1
Binary files /dev/null and b/question18/2021_10_22_0325_Reflectance_2.tif differ
diff --git a/question18/2021_10_22_0325_Reflectance_5.tif b/question18/2021_10_22_0325_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..af7ff937b3e1d44ddf45ee9cb157054d6292cab4
Binary files /dev/null and b/question18/2021_10_22_0325_Reflectance_5.tif differ
diff --git a/question18/2021_11_05_0335_Reflectance_17.tif b/question18/2021_11_05_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..25ebe79496b3a0f5b1ab6f65df3bd16e0ae281f4
Binary files /dev/null and b/question18/2021_11_05_0335_Reflectance_17.tif differ
diff --git a/question18/2021_11_05_0335_Reflectance_18.tif b/question18/2021_11_05_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..786f922b9127e7a0aae8187fee4b100902d280c5
Binary files /dev/null and b/question18/2021_11_05_0335_Reflectance_18.tif differ
diff --git a/question18/2021_11_05_0335_Reflectance_19.tif b/question18/2021_11_05_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ebdd31620bba0a8c2b700c499d12a829232acf08
Binary files /dev/null and b/question18/2021_11_05_0335_Reflectance_19.tif differ
diff --git a/question18/2021_11_05_0335_Reflectance_2.tif b/question18/2021_11_05_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5543e2c4868445ab61e53b22832a7d28dc14875b
Binary files /dev/null and b/question18/2021_11_05_0335_Reflectance_2.tif differ
diff --git a/question18/2021_11_05_0335_Reflectance_5.tif b/question18/2021_11_05_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..487156daf1b9a328f98f6c0f8d0d7d1a846a17ea
Binary files /dev/null and b/question18/2021_11_05_0335_Reflectance_5.tif differ
diff --git a/question18/2021_11_19_0345_Reflectance_17.tif b/question18/2021_11_19_0345_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ae5831bbedf455e4ca62d0743602ce5ad3626269
Binary files /dev/null and b/question18/2021_11_19_0345_Reflectance_17.tif differ
diff --git a/question18/2021_11_19_0345_Reflectance_18.tif b/question18/2021_11_19_0345_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b945a4f5503267367502adbc69295403b121bffa
Binary files /dev/null and b/question18/2021_11_19_0345_Reflectance_18.tif differ
diff --git a/question18/2021_11_19_0345_Reflectance_19.tif b/question18/2021_11_19_0345_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c7d9a08d8af9b14dd9a47fc2c0c202adb9e474f0
Binary files /dev/null and b/question18/2021_11_19_0345_Reflectance_19.tif differ
diff --git a/question18/2021_11_19_0345_Reflectance_2.tif b/question18/2021_11_19_0345_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..84d390bd3506f1e0b473cc2fd80f687a4bff2c0a
Binary files /dev/null and b/question18/2021_11_19_0345_Reflectance_2.tif differ
diff --git a/question18/2021_11_19_0345_Reflectance_5.tif b/question18/2021_11_19_0345_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ef19c6008c9a5d5dbf54a3289e5b1a8f43f1891a
Binary files /dev/null and b/question18/2021_11_19_0345_Reflectance_5.tif differ
diff --git a/question18/2021_12_03_0400_Reflectance_17.tif b/question18/2021_12_03_0400_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..90c826d5591ec80b5fab003f0d255c0c6b0165c7
Binary files /dev/null and b/question18/2021_12_03_0400_Reflectance_17.tif differ
diff --git a/question18/2021_12_03_0400_Reflectance_18.tif b/question18/2021_12_03_0400_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2897c7d0fbc0148b422458e2b4c823f33e736736
Binary files /dev/null and b/question18/2021_12_03_0400_Reflectance_18.tif differ
diff --git a/question18/2021_12_03_0400_Reflectance_19.tif b/question18/2021_12_03_0400_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b608069939f90906124410d166e291260461e805
Binary files /dev/null and b/question18/2021_12_03_0400_Reflectance_19.tif differ
diff --git a/question18/2021_12_03_0400_Reflectance_2.tif b/question18/2021_12_03_0400_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2e9f60c0bd7517b2eebaa5ba04637b6650266d18
Binary files /dev/null and b/question18/2021_12_03_0400_Reflectance_2.tif differ
diff --git a/question18/2021_12_03_0400_Reflectance_5.tif b/question18/2021_12_03_0400_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b484cc789b446c758c82d1b3f0b52ee52f856590
Binary files /dev/null and b/question18/2021_12_03_0400_Reflectance_5.tif differ
diff --git a/question18/2021_12_17_0235_Reflectance_17.tif b/question18/2021_12_17_0235_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..33644b7875afeae230998a5e737aeeaa878c63f4
Binary files /dev/null and b/question18/2021_12_17_0235_Reflectance_17.tif differ
diff --git a/question18/2021_12_17_0235_Reflectance_18.tif b/question18/2021_12_17_0235_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..118754985c18fa8ead511c3196d72c42f9589dfa
Binary files /dev/null and b/question18/2021_12_17_0235_Reflectance_18.tif differ
diff --git a/question18/2021_12_17_0235_Reflectance_19.tif b/question18/2021_12_17_0235_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2fc16c100d154b36718c66883dafbd53c3de81d7
Binary files /dev/null and b/question18/2021_12_17_0235_Reflectance_19.tif differ
diff --git a/question18/2021_12_17_0235_Reflectance_2.tif b/question18/2021_12_17_0235_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c6c492e85214fcc87652b55445e029ca0d6fa379
Binary files /dev/null and b/question18/2021_12_17_0235_Reflectance_2.tif differ
diff --git a/question18/2021_12_17_0235_Reflectance_5.tif b/question18/2021_12_17_0235_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b99a5a0ed993325c77b1e6ebd01a4c5d49455207
Binary files /dev/null and b/question18/2021_12_17_0235_Reflectance_5.tif differ
diff --git a/question18/2021_12_31_0245_Reflectance_17.tif b/question18/2021_12_31_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9da52774b617fac4b068747952e7388d4350158a
Binary files /dev/null and b/question18/2021_12_31_0245_Reflectance_17.tif differ
diff --git a/question18/2021_12_31_0245_Reflectance_18.tif b/question18/2021_12_31_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bf9c83a329a5b42e052d256061cfc1c3e09a4c11
Binary files /dev/null and b/question18/2021_12_31_0245_Reflectance_18.tif differ
diff --git a/question18/2021_12_31_0245_Reflectance_19.tif b/question18/2021_12_31_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..029bad49174c5e55261f6641c01933604b1c8abf
Binary files /dev/null and b/question18/2021_12_31_0245_Reflectance_19.tif differ
diff --git a/question18/2021_12_31_0245_Reflectance_2.tif b/question18/2021_12_31_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1aba915989d02e8256b8ed7f5fc63c95202343c9
Binary files /dev/null and b/question18/2021_12_31_0245_Reflectance_2.tif differ
diff --git a/question18/2021_12_31_0245_Reflectance_5.tif b/question18/2021_12_31_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9edd812cbdc0063f984033f57178186d046c0911
Binary files /dev/null and b/question18/2021_12_31_0245_Reflectance_5.tif differ
diff --git a/question18/2022_01_01_0330_Reflectance_17.tif b/question18/2022_01_01_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..826e826973c5c1443ec0ddbfe672513166e3550e
Binary files /dev/null and b/question18/2022_01_01_0330_Reflectance_17.tif differ
diff --git a/question18/2022_01_01_0330_Reflectance_18.tif b/question18/2022_01_01_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4eb2ec1f0f7a8055b3f76791ba4cb764389b4d42
Binary files /dev/null and b/question18/2022_01_01_0330_Reflectance_18.tif differ
diff --git a/question18/2022_01_01_0330_Reflectance_19.tif b/question18/2022_01_01_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2c492847d34beaad77679274a4da357e9e6f6bfc
Binary files /dev/null and b/question18/2022_01_01_0330_Reflectance_19.tif differ
diff --git a/question18/2022_01_01_0330_Reflectance_2.tif b/question18/2022_01_01_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fa203701407d22c78e631577b75040572d8dc9a8
Binary files /dev/null and b/question18/2022_01_01_0330_Reflectance_2.tif differ
diff --git a/question18/2022_01_01_0330_Reflectance_5.tif b/question18/2022_01_01_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5c40643a4339df19c304e0c93c8c16f925cfb40c
Binary files /dev/null and b/question18/2022_01_01_0330_Reflectance_5.tif differ
diff --git a/question18/2022_01_15_0340_Reflectance_17.tif b/question18/2022_01_15_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0aafd8e6df648d9f65e8e2a5062a0f2041b9014d
Binary files /dev/null and b/question18/2022_01_15_0340_Reflectance_17.tif differ
diff --git a/question18/2022_01_15_0340_Reflectance_18.tif b/question18/2022_01_15_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..346ee8f38a377d4c86424b6cb5510ffd34b76124
Binary files /dev/null and b/question18/2022_01_15_0340_Reflectance_18.tif differ
diff --git a/question18/2022_01_15_0340_Reflectance_19.tif b/question18/2022_01_15_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e801d8052127b53ec89c0c69b43628877a2af164
Binary files /dev/null and b/question18/2022_01_15_0340_Reflectance_19.tif differ
diff --git a/question18/2022_01_15_0340_Reflectance_2.tif b/question18/2022_01_15_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..32b7ecec1b89d6461cbd69de0da1a0099e1ca7f0
Binary files /dev/null and b/question18/2022_01_15_0340_Reflectance_2.tif differ
diff --git a/question18/2022_01_15_0340_Reflectance_5.tif b/question18/2022_01_15_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7435c8ae92b174f8623e3cefe5a2458b33645a85
Binary files /dev/null and b/question18/2022_01_15_0340_Reflectance_5.tif differ
diff --git a/question18/2022_01_29_0350_Reflectance_17.tif b/question18/2022_01_29_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..464268c5735314f9dca3f714b2a34364eaf47387
Binary files /dev/null and b/question18/2022_01_29_0350_Reflectance_17.tif differ
diff --git a/question18/2022_01_29_0350_Reflectance_18.tif b/question18/2022_01_29_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..735fc9fc2202c388944f51fba4d137a0cbce2f16
Binary files /dev/null and b/question18/2022_01_29_0350_Reflectance_18.tif differ
diff --git a/question18/2022_01_29_0350_Reflectance_19.tif b/question18/2022_01_29_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8e56402587f307b38ac48610a46a2bdf10d62f4c
Binary files /dev/null and b/question18/2022_01_29_0350_Reflectance_19.tif differ
diff --git a/question18/2022_01_29_0350_Reflectance_2.tif b/question18/2022_01_29_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6a7a99fb4222edca274590bd2fab6bfb875e0b1f
Binary files /dev/null and b/question18/2022_01_29_0350_Reflectance_2.tif differ
diff --git a/question18/2022_01_29_0350_Reflectance_5.tif b/question18/2022_01_29_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6cab4c6b38a408f99161dd52c4af709d4fc71341
Binary files /dev/null and b/question18/2022_01_29_0350_Reflectance_5.tif differ
diff --git a/question18/2022_02_12_0405_Reflectance_17.tif b/question18/2022_02_12_0405_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a7be3196ad8a9eadbb0c87493b664c487b99fb52
Binary files /dev/null and b/question18/2022_02_12_0405_Reflectance_17.tif differ
diff --git a/question18/2022_02_12_0405_Reflectance_18.tif b/question18/2022_02_12_0405_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5b08fd0b300e32d5ce426bfae72614901510e827
Binary files /dev/null and b/question18/2022_02_12_0405_Reflectance_18.tif differ
diff --git a/question18/2022_02_12_0405_Reflectance_19.tif b/question18/2022_02_12_0405_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c946919a7ba78651bdc85b4713f5811f1db99b5b
Binary files /dev/null and b/question18/2022_02_12_0405_Reflectance_19.tif differ
diff --git a/question18/2022_02_12_0405_Reflectance_2.tif b/question18/2022_02_12_0405_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..af73b601e3dc4f7bd42dadbb7b29d543cb1e6ebd
Binary files /dev/null and b/question18/2022_02_12_0405_Reflectance_2.tif differ
diff --git a/question18/2022_02_12_0405_Reflectance_5.tif b/question18/2022_02_12_0405_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d78071c5f027730f7215d390ce7f724a354e1c04
Binary files /dev/null and b/question18/2022_02_12_0405_Reflectance_5.tif differ
diff --git a/question18/2022_02_26_0235_Reflectance_17.tif b/question18/2022_02_26_0235_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bc1016bee028451056243394326df43ff666ec71
Binary files /dev/null and b/question18/2022_02_26_0235_Reflectance_17.tif differ
diff --git a/question18/2022_02_26_0235_Reflectance_18.tif b/question18/2022_02_26_0235_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..65b997ef669d22903c536dd1a8c4f75ec2dbbd39
Binary files /dev/null and b/question18/2022_02_26_0235_Reflectance_18.tif differ
diff --git a/question18/2022_02_26_0235_Reflectance_19.tif b/question18/2022_02_26_0235_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4270c4c5e488d0c7962a6d4bdb2e066b2dadf1e7
Binary files /dev/null and b/question18/2022_02_26_0235_Reflectance_19.tif differ
diff --git a/question18/2022_02_26_0235_Reflectance_2.tif b/question18/2022_02_26_0235_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..40cdc27112b4d4a2e660649890e490028a48e8ab
Binary files /dev/null and b/question18/2022_02_26_0235_Reflectance_2.tif differ
diff --git a/question18/2022_02_26_0235_Reflectance_5.tif b/question18/2022_02_26_0235_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f9a91f3f74b3c2d360f9cc963b26c0cd2bba89f5
Binary files /dev/null and b/question18/2022_02_26_0235_Reflectance_5.tif differ
diff --git a/question18/2022_03_12_0250_Reflectance_17.tif b/question18/2022_03_12_0250_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ddcd945bf8a4a7de1c3a85fd1654b509c135b71f
Binary files /dev/null and b/question18/2022_03_12_0250_Reflectance_17.tif differ
diff --git a/question18/2022_03_12_0250_Reflectance_18.tif b/question18/2022_03_12_0250_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..96b31c4119ac31278a5de4b3d5c14cca110b70c2
Binary files /dev/null and b/question18/2022_03_12_0250_Reflectance_18.tif differ
diff --git a/question18/2022_03_12_0250_Reflectance_19.tif b/question18/2022_03_12_0250_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c2172cb7810ae525a171046699eac85291b59b76
Binary files /dev/null and b/question18/2022_03_12_0250_Reflectance_19.tif differ
diff --git a/question18/2022_03_12_0250_Reflectance_2.tif b/question18/2022_03_12_0250_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0c693ed4db6cbc9c288271bb1829322fde288d57
Binary files /dev/null and b/question18/2022_03_12_0250_Reflectance_2.tif differ
diff --git a/question18/2022_03_12_0250_Reflectance_5.tif b/question18/2022_03_12_0250_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6c31ed28ac64627c7cc7536ba51310eb652e0c50
Binary files /dev/null and b/question18/2022_03_12_0250_Reflectance_5.tif differ
diff --git a/question18/2022_03_26_0300_Reflectance_17.tif b/question18/2022_03_26_0300_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..545a077e4a38a16690786defb8a4d3669684dd15
Binary files /dev/null and b/question18/2022_03_26_0300_Reflectance_17.tif differ
diff --git a/question18/2022_03_26_0300_Reflectance_18.tif b/question18/2022_03_26_0300_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d6d4c7f174abb583c3da264a21b0c06938d9320d
Binary files /dev/null and b/question18/2022_03_26_0300_Reflectance_18.tif differ
diff --git a/question18/2022_03_26_0300_Reflectance_19.tif b/question18/2022_03_26_0300_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9cb607a7de9195334e5d70804137be5586366bb4
Binary files /dev/null and b/question18/2022_03_26_0300_Reflectance_19.tif differ
diff --git a/question18/2022_03_26_0300_Reflectance_2.tif b/question18/2022_03_26_0300_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4f5e3432f620a8a44d7f24d3f6eb2d5f46d24dbc
Binary files /dev/null and b/question18/2022_03_26_0300_Reflectance_2.tif differ
diff --git a/question18/2022_03_26_0300_Reflectance_5.tif b/question18/2022_03_26_0300_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..573545cd2d60599c38094eda1575c7bb6944d520
Binary files /dev/null and b/question18/2022_03_26_0300_Reflectance_5.tif differ
diff --git a/question18/2022_04_09_0315_Reflectance_17.tif b/question18/2022_04_09_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..403408f9a5df8414df9cb5ca4d326ba5823586b0
Binary files /dev/null and b/question18/2022_04_09_0315_Reflectance_17.tif differ
diff --git a/question18/2022_04_09_0315_Reflectance_18.tif b/question18/2022_04_09_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d0d54c63c45d1af2275fe5eb4524abeac8330645
Binary files /dev/null and b/question18/2022_04_09_0315_Reflectance_18.tif differ
diff --git a/question18/2022_04_09_0315_Reflectance_19.tif b/question18/2022_04_09_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..76e9b3e6837d40af06b2f7279b817d6267eb487f
Binary files /dev/null and b/question18/2022_04_09_0315_Reflectance_19.tif differ
diff --git a/question18/2022_04_09_0315_Reflectance_2.tif b/question18/2022_04_09_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c6abbcc8518b8e56974597b06ca4c3fb91464e82
Binary files /dev/null and b/question18/2022_04_09_0315_Reflectance_2.tif differ
diff --git a/question18/2022_04_09_0315_Reflectance_5.tif b/question18/2022_04_09_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7400b9c5cf8e596d64322ae2efdc3b3d60ae28b1
Binary files /dev/null and b/question18/2022_04_09_0315_Reflectance_5.tif differ
diff --git a/question18/2022_04_23_0325_Reflectance_17.tif b/question18/2022_04_23_0325_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..62106237fa7f3ce600020cd6360f9ec74a38c667
Binary files /dev/null and b/question18/2022_04_23_0325_Reflectance_17.tif differ
diff --git a/question18/2022_04_23_0325_Reflectance_18.tif b/question18/2022_04_23_0325_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d820ca1027439fe8c194bb477e87e97a79c2cb5b
Binary files /dev/null and b/question18/2022_04_23_0325_Reflectance_18.tif differ
diff --git a/question18/2022_04_23_0325_Reflectance_19.tif b/question18/2022_04_23_0325_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..322dc74fd1befac59c53724be92106bddcceb6e6
Binary files /dev/null and b/question18/2022_04_23_0325_Reflectance_19.tif differ
diff --git a/question18/2022_04_23_0325_Reflectance_2.tif b/question18/2022_04_23_0325_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8253d4af2963ae50f6f9c1e808415fc43765e482
Binary files /dev/null and b/question18/2022_04_23_0325_Reflectance_2.tif differ
diff --git a/question18/2022_04_23_0325_Reflectance_5.tif b/question18/2022_04_23_0325_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..41c948b95afe2b5c1c6d0232bbc1a13e26532195
Binary files /dev/null and b/question18/2022_04_23_0325_Reflectance_5.tif differ
diff --git a/question18/2022_05_07_0335_Reflectance_17.tif b/question18/2022_05_07_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2e3c3d960bf9eb21e0b73e32ca9a2345b4366e5b
Binary files /dev/null and b/question18/2022_05_07_0335_Reflectance_17.tif differ
diff --git a/question18/2022_05_07_0335_Reflectance_18.tif b/question18/2022_05_07_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1eab8d44033d129933d4f8f17ccd2d679c022bb8
Binary files /dev/null and b/question18/2022_05_07_0335_Reflectance_18.tif differ
diff --git a/question18/2022_05_07_0335_Reflectance_19.tif b/question18/2022_05_07_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0e152708949c35380a7a6254a6502005c0b2778c
Binary files /dev/null and b/question18/2022_05_07_0335_Reflectance_19.tif differ
diff --git a/question18/2022_05_07_0335_Reflectance_2.tif b/question18/2022_05_07_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e36fbc1f94d7a818d419588e546a964409e236ed
Binary files /dev/null and b/question18/2022_05_07_0335_Reflectance_2.tif differ
diff --git a/question18/2022_05_07_0335_Reflectance_5.tif b/question18/2022_05_07_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..82ec4c6b73b9f56c747a920445916709fb8f3a5a
Binary files /dev/null and b/question18/2022_05_07_0335_Reflectance_5.tif differ
diff --git a/question18/2022_05_21_0350_Reflectance_17.tif b/question18/2022_05_21_0350_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d9ce441fe8ca1b5efd5b730144e7d8d2b9487c26
Binary files /dev/null and b/question18/2022_05_21_0350_Reflectance_17.tif differ
diff --git a/question18/2022_05_21_0350_Reflectance_18.tif b/question18/2022_05_21_0350_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ba83f6a70df71101624c2f37771e363d1eb937e1
Binary files /dev/null and b/question18/2022_05_21_0350_Reflectance_18.tif differ
diff --git a/question18/2022_05_21_0350_Reflectance_19.tif b/question18/2022_05_21_0350_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ae27f222059c7950011303049aace421d5581bcf
Binary files /dev/null and b/question18/2022_05_21_0350_Reflectance_19.tif differ
diff --git a/question18/2022_05_21_0350_Reflectance_2.tif b/question18/2022_05_21_0350_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..61c495b4227b947900996ce17632246269f73834
Binary files /dev/null and b/question18/2022_05_21_0350_Reflectance_2.tif differ
diff --git a/question18/2022_05_21_0350_Reflectance_5.tif b/question18/2022_05_21_0350_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b5de9657a160f30a50122a4531b08b680dc00127
Binary files /dev/null and b/question18/2022_05_21_0350_Reflectance_5.tif differ
diff --git a/question18/2022_06_04_0400_Reflectance_17.tif b/question18/2022_06_04_0400_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9751ffb516f4d01be0963a7e940df7ff670e3e39
Binary files /dev/null and b/question18/2022_06_04_0400_Reflectance_17.tif differ
diff --git a/question18/2022_06_04_0400_Reflectance_18.tif b/question18/2022_06_04_0400_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..bdac6ae1360fe56e8faed93728a59921c2746fbe
Binary files /dev/null and b/question18/2022_06_04_0400_Reflectance_18.tif differ
diff --git a/question18/2022_06_04_0400_Reflectance_19.tif b/question18/2022_06_04_0400_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ceaa99fdcce6d0728c8835bedf3da932d5c4eda6
Binary files /dev/null and b/question18/2022_06_04_0400_Reflectance_19.tif differ
diff --git a/question18/2022_06_04_0400_Reflectance_2.tif b/question18/2022_06_04_0400_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b4ebeea00a9bb34feef6b12eed35dc1c9ff50a15
Binary files /dev/null and b/question18/2022_06_04_0400_Reflectance_2.tif differ
diff --git a/question18/2022_06_04_0400_Reflectance_5.tif b/question18/2022_06_04_0400_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cf8e4cb41d17bca080f20f09336aa4c317ec8fdb
Binary files /dev/null and b/question18/2022_06_04_0400_Reflectance_5.tif differ
diff --git a/question18/2022_06_18_0235_Reflectance_17.tif b/question18/2022_06_18_0235_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a36ab7c4d678087067a60bdbfefe05009f422ead
Binary files /dev/null and b/question18/2022_06_18_0235_Reflectance_17.tif differ
diff --git a/question18/2022_06_18_0235_Reflectance_18.tif b/question18/2022_06_18_0235_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7ee2f37ae573a02b8ba7a7ed54837eda89edda79
Binary files /dev/null and b/question18/2022_06_18_0235_Reflectance_18.tif differ
diff --git a/question18/2022_06_18_0235_Reflectance_19.tif b/question18/2022_06_18_0235_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..94d7abb743bc143e554b7adc997e4cafbf7d7f86
Binary files /dev/null and b/question18/2022_06_18_0235_Reflectance_19.tif differ
diff --git a/question18/2022_06_18_0235_Reflectance_2.tif b/question18/2022_06_18_0235_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..80bb2df7f8444ea2e557ec1442bb09e68008fafa
Binary files /dev/null and b/question18/2022_06_18_0235_Reflectance_2.tif differ
diff --git a/question18/2022_06_18_0235_Reflectance_5.tif b/question18/2022_06_18_0235_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d9040a787032c9d112e5ea8045ee2cdf2c6db32e
Binary files /dev/null and b/question18/2022_06_18_0235_Reflectance_5.tif differ
diff --git a/question18/2022_07_02_0245_Reflectance_17.tif b/question18/2022_07_02_0245_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6256cd7821e3964c860fab69a3f6a3a7d9704d8c
Binary files /dev/null and b/question18/2022_07_02_0245_Reflectance_17.tif differ
diff --git a/question18/2022_07_02_0245_Reflectance_18.tif b/question18/2022_07_02_0245_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..cc7111d63050cec0278b95c5c884f4a810cf2ac5
Binary files /dev/null and b/question18/2022_07_02_0245_Reflectance_18.tif differ
diff --git a/question18/2022_07_02_0245_Reflectance_19.tif b/question18/2022_07_02_0245_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7a24716a884ba97d1074c5994ec2bf6ed1b60d54
Binary files /dev/null and b/question18/2022_07_02_0245_Reflectance_19.tif differ
diff --git a/question18/2022_07_02_0245_Reflectance_2.tif b/question18/2022_07_02_0245_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..86fe11673ca41d9e9faf8c162a22175ab8950c5f
Binary files /dev/null and b/question18/2022_07_02_0245_Reflectance_2.tif differ
diff --git a/question18/2022_07_02_0245_Reflectance_5.tif b/question18/2022_07_02_0245_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7ccddd09d35381035664fd32cf989ef332fa6b6b
Binary files /dev/null and b/question18/2022_07_02_0245_Reflectance_5.tif differ
diff --git a/question18/2022_07_16_0255_Reflectance_17.tif b/question18/2022_07_16_0255_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ecf0da2d16ea31b9731271f966bbd8425b693128
Binary files /dev/null and b/question18/2022_07_16_0255_Reflectance_17.tif differ
diff --git a/question18/2022_07_16_0255_Reflectance_18.tif b/question18/2022_07_16_0255_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e7bccb18e64b8df135e7aeddd0a2361bb663bba3
Binary files /dev/null and b/question18/2022_07_16_0255_Reflectance_18.tif differ
diff --git a/question18/2022_07_16_0255_Reflectance_19.tif b/question18/2022_07_16_0255_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..566c8faf0bb3bbe9b60ceecea95fcd6544495ec8
Binary files /dev/null and b/question18/2022_07_16_0255_Reflectance_19.tif differ
diff --git a/question18/2022_07_16_0255_Reflectance_2.tif b/question18/2022_07_16_0255_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e966fe0c7edb3e2aaf2ec06904087cee5952d025
Binary files /dev/null and b/question18/2022_07_16_0255_Reflectance_2.tif differ
diff --git a/question18/2022_07_16_0255_Reflectance_5.tif b/question18/2022_07_16_0255_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..689496ad96408fc5b9e43008bd1439ada706a1ea
Binary files /dev/null and b/question18/2022_07_16_0255_Reflectance_5.tif differ
diff --git a/question18/2022_07_30_0310_Reflectance_17.tif b/question18/2022_07_30_0310_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a72838f2de8d9a32954f4d94fb2432d87c8a450e
Binary files /dev/null and b/question18/2022_07_30_0310_Reflectance_17.tif differ
diff --git a/question18/2022_07_30_0310_Reflectance_18.tif b/question18/2022_07_30_0310_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..aa0476380738f31319454196304639c76bb92360
Binary files /dev/null and b/question18/2022_07_30_0310_Reflectance_18.tif differ
diff --git a/question18/2022_07_30_0310_Reflectance_19.tif b/question18/2022_07_30_0310_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..169afb5eb7630a9bc775b50a0776abe6043d2096
Binary files /dev/null and b/question18/2022_07_30_0310_Reflectance_19.tif differ
diff --git a/question18/2022_07_30_0310_Reflectance_2.tif b/question18/2022_07_30_0310_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..b17d203e54c261a2e94e6c0eaa4bde06335241ae
Binary files /dev/null and b/question18/2022_07_30_0310_Reflectance_2.tif differ
diff --git a/question18/2022_07_30_0310_Reflectance_5.tif b/question18/2022_07_30_0310_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..a6754d2f0eea715700edda60502378a748014632
Binary files /dev/null and b/question18/2022_07_30_0310_Reflectance_5.tif differ
diff --git a/question18/2022_08_13_0320_Reflectance_17.tif b/question18/2022_08_13_0320_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..862d81e9ff26cf6246d4043d2f80c69226eee27b
Binary files /dev/null and b/question18/2022_08_13_0320_Reflectance_17.tif differ
diff --git a/question18/2022_08_13_0320_Reflectance_18.tif b/question18/2022_08_13_0320_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5d2dffc50645d363e8a7487f97338b215b5cefd8
Binary files /dev/null and b/question18/2022_08_13_0320_Reflectance_18.tif differ
diff --git a/question18/2022_08_13_0320_Reflectance_19.tif b/question18/2022_08_13_0320_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..16f12d1dd065f7d0fa6c227d56a53850c1d554cf
Binary files /dev/null and b/question18/2022_08_13_0320_Reflectance_19.tif differ
diff --git a/question18/2022_08_13_0320_Reflectance_2.tif b/question18/2022_08_13_0320_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0c6afde4bc59bb86689268117b66075894a19dbc
Binary files /dev/null and b/question18/2022_08_13_0320_Reflectance_2.tif differ
diff --git a/question18/2022_08_13_0320_Reflectance_5.tif b/question18/2022_08_13_0320_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..290247756eff8a65dc52347e352717d74f82ee34
Binary files /dev/null and b/question18/2022_08_13_0320_Reflectance_5.tif differ
diff --git a/question18/2022_08_27_0335_Reflectance_17.tif b/question18/2022_08_27_0335_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..56c001e6c0e76bb70d86e31f04da7ec8364d7de6
Binary files /dev/null and b/question18/2022_08_27_0335_Reflectance_17.tif differ
diff --git a/question18/2022_08_27_0335_Reflectance_18.tif b/question18/2022_08_27_0335_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..5c32d9f46b77bab774c9fd3e6cf40de5e76393ba
Binary files /dev/null and b/question18/2022_08_27_0335_Reflectance_18.tif differ
diff --git a/question18/2022_08_27_0335_Reflectance_19.tif b/question18/2022_08_27_0335_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0b2b09b0c6bca3b4198b5d7f430ebdeacd579e04
Binary files /dev/null and b/question18/2022_08_27_0335_Reflectance_19.tif differ
diff --git a/question18/2022_08_27_0335_Reflectance_2.tif b/question18/2022_08_27_0335_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..9b29f9e9867a03995b7be59affed30bc10ab389f
Binary files /dev/null and b/question18/2022_08_27_0335_Reflectance_2.tif differ
diff --git a/question18/2022_08_27_0335_Reflectance_5.tif b/question18/2022_08_27_0335_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..f5bcd1e241e2d75a902de6b714c667dc1310decc
Binary files /dev/null and b/question18/2022_08_27_0335_Reflectance_5.tif differ
diff --git a/question18/2022_09_10_0345_Reflectance_17.tif b/question18/2022_09_10_0345_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2aa31447c12b0af610a83daf77e5187064d08ef2
Binary files /dev/null and b/question18/2022_09_10_0345_Reflectance_17.tif differ
diff --git a/question18/2022_09_10_0345_Reflectance_18.tif b/question18/2022_09_10_0345_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6bef530aaf3f2437d51fa53fbe97e3d7b443b84b
Binary files /dev/null and b/question18/2022_09_10_0345_Reflectance_18.tif differ
diff --git a/question18/2022_09_10_0345_Reflectance_19.tif b/question18/2022_09_10_0345_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..147dd54d4cbed01fb1d11429df8a96e859825429
Binary files /dev/null and b/question18/2022_09_10_0345_Reflectance_19.tif differ
diff --git a/question18/2022_09_10_0345_Reflectance_2.tif b/question18/2022_09_10_0345_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..68a35e9f6c88362590e2e27dcfb183196f1ac58a
Binary files /dev/null and b/question18/2022_09_10_0345_Reflectance_2.tif differ
diff --git a/question18/2022_09_10_0345_Reflectance_5.tif b/question18/2022_09_10_0345_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2c5b27c1f10948f3ff2c937601044c9c97972b5b
Binary files /dev/null and b/question18/2022_09_10_0345_Reflectance_5.tif differ
diff --git a/question18/2022_09_24_0355_Reflectance_17.tif b/question18/2022_09_24_0355_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..46f178e0b0d7401fd275b695d67165c5fd3c4fe1
Binary files /dev/null and b/question18/2022_09_24_0355_Reflectance_17.tif differ
diff --git a/question18/2022_09_24_0355_Reflectance_18.tif b/question18/2022_09_24_0355_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..995620f75b533acff6a93c883a5e4f9519c1a371
Binary files /dev/null and b/question18/2022_09_24_0355_Reflectance_18.tif differ
diff --git a/question18/2022_09_24_0355_Reflectance_19.tif b/question18/2022_09_24_0355_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0db9e6bc465e3fe29b137266fdb71430f3daf2a0
Binary files /dev/null and b/question18/2022_09_24_0355_Reflectance_19.tif differ
diff --git a/question18/2022_09_24_0355_Reflectance_2.tif b/question18/2022_09_24_0355_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d5e20ae6caef2de72313414a845d715cc341590e
Binary files /dev/null and b/question18/2022_09_24_0355_Reflectance_2.tif differ
diff --git a/question18/2022_09_24_0355_Reflectance_5.tif b/question18/2022_09_24_0355_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4eb40196f5084baa8554b71b5cae02fbf58d8fe7
Binary files /dev/null and b/question18/2022_09_24_0355_Reflectance_5.tif differ
diff --git a/question18/2022_10_08_0230_Reflectance_17.tif b/question18/2022_10_08_0230_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..323bfed7295501cb433e1e8f3957e25ad4a7b723
Binary files /dev/null and b/question18/2022_10_08_0230_Reflectance_17.tif differ
diff --git a/question18/2022_10_08_0230_Reflectance_18.tif b/question18/2022_10_08_0230_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..49a5e1166a1c1f9ffc74c1d9c33774bf3f1b747b
Binary files /dev/null and b/question18/2022_10_08_0230_Reflectance_18.tif differ
diff --git a/question18/2022_10_08_0230_Reflectance_19.tif b/question18/2022_10_08_0230_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c27071e983edaa0260c8eb6383a5d9ba75fb1b84
Binary files /dev/null and b/question18/2022_10_08_0230_Reflectance_19.tif differ
diff --git a/question18/2022_10_08_0230_Reflectance_2.tif b/question18/2022_10_08_0230_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..fc15d1b06c94e809fc96fde1e11ea5ae0a24d2ed
Binary files /dev/null and b/question18/2022_10_08_0230_Reflectance_2.tif differ
diff --git a/question18/2022_10_08_0230_Reflectance_5.tif b/question18/2022_10_08_0230_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..318ef94fdb410fb561bd569eec5d43267bbb0782
Binary files /dev/null and b/question18/2022_10_08_0230_Reflectance_5.tif differ
diff --git a/question18/2022_10_24_0355_Reflectance_17.tif b/question18/2022_10_24_0355_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..268472e27acbd3d94f48b560133fecc55c6469db
Binary files /dev/null and b/question18/2022_10_24_0355_Reflectance_17.tif differ
diff --git a/question18/2022_10_24_0355_Reflectance_18.tif b/question18/2022_10_24_0355_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1f2c0b1ec4fae12b28440eb867fbf2df75c6efb3
Binary files /dev/null and b/question18/2022_10_24_0355_Reflectance_18.tif differ
diff --git a/question18/2022_10_24_0355_Reflectance_19.tif b/question18/2022_10_24_0355_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..529cc728a1c35c1428858694c5c511e92b6abaf5
Binary files /dev/null and b/question18/2022_10_24_0355_Reflectance_19.tif differ
diff --git a/question18/2022_10_24_0355_Reflectance_2.tif b/question18/2022_10_24_0355_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..34bfbdd0503329aa171645a18e3f7407d6123b66
Binary files /dev/null and b/question18/2022_10_24_0355_Reflectance_2.tif differ
diff --git a/question18/2022_10_24_0355_Reflectance_5.tif b/question18/2022_10_24_0355_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ff7e22c96ea2635af024a9ba1546e49c38805856
Binary files /dev/null and b/question18/2022_10_24_0355_Reflectance_5.tif differ
diff --git a/question18/2022_11_07_0340_Reflectance_17.tif b/question18/2022_11_07_0340_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..1cd886d1a769e7bd55e72b533ff79bc0636f2dd5
Binary files /dev/null and b/question18/2022_11_07_0340_Reflectance_17.tif differ
diff --git a/question18/2022_11_07_0340_Reflectance_18.tif b/question18/2022_11_07_0340_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..4cb52ea8638938cdc77c83d1a75b6d20cca2d2ed
Binary files /dev/null and b/question18/2022_11_07_0340_Reflectance_18.tif differ
diff --git a/question18/2022_11_07_0340_Reflectance_19.tif b/question18/2022_11_07_0340_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e3d60c700ec7c4f2b3b615b30919da2f63e7a447
Binary files /dev/null and b/question18/2022_11_07_0340_Reflectance_19.tif differ
diff --git a/question18/2022_11_07_0340_Reflectance_2.tif b/question18/2022_11_07_0340_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..e5c513154891186e2b74f91860661316299fa266
Binary files /dev/null and b/question18/2022_11_07_0340_Reflectance_2.tif differ
diff --git a/question18/2022_11_07_0340_Reflectance_5.tif b/question18/2022_11_07_0340_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..002963df376be358ae347c9411fe8225dfff2c5e
Binary files /dev/null and b/question18/2022_11_07_0340_Reflectance_5.tif differ
diff --git a/question18/2022_11_21_0330_Reflectance_17.tif b/question18/2022_11_21_0330_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6445d20f57b885fc676ca3a3449866606bca480b
Binary files /dev/null and b/question18/2022_11_21_0330_Reflectance_17.tif differ
diff --git a/question18/2022_11_21_0330_Reflectance_18.tif b/question18/2022_11_21_0330_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..972172a8fa6538172492d0a9049ddf69e3c90711
Binary files /dev/null and b/question18/2022_11_21_0330_Reflectance_18.tif differ
diff --git a/question18/2022_11_21_0330_Reflectance_19.tif b/question18/2022_11_21_0330_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..8e23d2ed1e8a4c1411a9428d15c0ce278bb72fa6
Binary files /dev/null and b/question18/2022_11_21_0330_Reflectance_19.tif differ
diff --git a/question18/2022_11_21_0330_Reflectance_2.tif b/question18/2022_11_21_0330_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..6bdbe7e8e3b5b56220f9b098cae098e7078c066c
Binary files /dev/null and b/question18/2022_11_21_0330_Reflectance_2.tif differ
diff --git a/question18/2022_11_21_0330_Reflectance_5.tif b/question18/2022_11_21_0330_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..2993fb4c713f3aedb69bfd7f601cb33d60b0fc54
Binary files /dev/null and b/question18/2022_11_21_0330_Reflectance_5.tif differ
diff --git a/question18/2022_12_05_0315_Reflectance_17.tif b/question18/2022_12_05_0315_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7165c479a507535196e5f21ccae5808b89a048df
Binary files /dev/null and b/question18/2022_12_05_0315_Reflectance_17.tif differ
diff --git a/question18/2022_12_05_0315_Reflectance_18.tif b/question18/2022_12_05_0315_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3a40dead0dea03a132de41d941a8a3760266096b
Binary files /dev/null and b/question18/2022_12_05_0315_Reflectance_18.tif differ
diff --git a/question18/2022_12_05_0315_Reflectance_19.tif b/question18/2022_12_05_0315_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..d02968faa6e0f69386c50966add35ba74a849d99
Binary files /dev/null and b/question18/2022_12_05_0315_Reflectance_19.tif differ
diff --git a/question18/2022_12_05_0315_Reflectance_2.tif b/question18/2022_12_05_0315_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..3cb1ac9b310247888a949f9ff7d21d38007606ab
Binary files /dev/null and b/question18/2022_12_05_0315_Reflectance_2.tif differ
diff --git a/question18/2022_12_05_0315_Reflectance_5.tif b/question18/2022_12_05_0315_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..7f1f7d7805aab5f282c22ed8a37262de33865db6
Binary files /dev/null and b/question18/2022_12_05_0315_Reflectance_5.tif differ
diff --git a/question18/2022_12_19_0305_Reflectance_17.tif b/question18/2022_12_19_0305_Reflectance_17.tif
new file mode 100644
index 0000000000000000000000000000000000000000..07384ff17d4aa0f3ad6021a89b62ed2ef2aaa890
Binary files /dev/null and b/question18/2022_12_19_0305_Reflectance_17.tif differ
diff --git a/question18/2022_12_19_0305_Reflectance_18.tif b/question18/2022_12_19_0305_Reflectance_18.tif
new file mode 100644
index 0000000000000000000000000000000000000000..ccbb363176d9426bf63e6c0855148f8546bcef68
Binary files /dev/null and b/question18/2022_12_19_0305_Reflectance_18.tif differ
diff --git a/question18/2022_12_19_0305_Reflectance_19.tif b/question18/2022_12_19_0305_Reflectance_19.tif
new file mode 100644
index 0000000000000000000000000000000000000000..79aecebf283dce05f2313d902de7b6752b2caf4e
Binary files /dev/null and b/question18/2022_12_19_0305_Reflectance_19.tif differ
diff --git a/question18/2022_12_19_0305_Reflectance_2.tif b/question18/2022_12_19_0305_Reflectance_2.tif
new file mode 100644
index 0000000000000000000000000000000000000000..c30d257278f615fd98ac860028a8a7b0f095ac65
Binary files /dev/null and b/question18/2022_12_19_0305_Reflectance_2.tif differ
diff --git a/question18/2022_12_19_0305_Reflectance_5.tif b/question18/2022_12_19_0305_Reflectance_5.tif
new file mode 100644
index 0000000000000000000000000000000000000000..0d1c7e0206b720fcf3e0dc973ec1c1799968cf1d
Binary files /dev/null and b/question18/2022_12_19_0305_Reflectance_5.tif differ