Update README.md

README.md

@@ -7,28 +7,24 @@ We provide '.csv' files with predefined train (blue), test (orange) and validati
 
 # Temporal Coverage
 
-As of now, M3LEO contains data from 2018 to 2020 for the case of Sentinel-1 and Sentinel-2 and 2020 for the labelled datasets.
+As of now, M3LEO contains data from 2018 - 2020 for SAR amplitude and multi-spectral Sentinel-2 imagery. Other datasets are provided for 2020 only. Future iterations might extend the dataset to other years.
 
 #### Content
 
-- [`s1grd-year`](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S1_GRD): Sentinel-1 SAR GRD selecting the [year] of preference: C-band Synthetic Aperture Radar Ground Range Detected, three channels (vv, vh, vv/vh) at 10m resolution, taking the seasonal median (4 seasons per year) for both ascending and descending modes.
+- [`s1grd-[2018-2020]`](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S1_GRD): Sentinel-1 C-band SAR Ground Range Detected (GRD) amplitude data. Contains VV and VH polarization channels at 10m resolution, with seasonal median composites (4 seasons/year) for ascending and descending orbits.
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+- [`gssic`](https://asf.alaska.edu/datasets/derived/global-seasonal-sentinel-1-interferometric-coherence-and-backscatter-dataset/): Global Seasonal Sentinel-1 Interferometric Coherence and Backscatter dataset at 90m resolution.
 
-- [`gssic`](https://asf.alaska.edu/datasets/derived/global-seasonal-sentinel-1-interferometric-coherence-and-backscatter-dataset/): Global Seasonal Sentinel-1 Interferometric Coherence and Backscatter dataset at aroud 90m resolution.
+- [`gunw-dateinit_dateend`](https://asf.alaska.edu/data-sets/derived-data-sets/sentinel-1-interferograms/): ARIA Sentinel-1 Geocoded Unwrapped Interferograms at 90m resolution. Date selection prioritizes maximum interferometric pair availability within the specified period [dateinit, dateend].
 
-- [`gunw-dateinit_dateend`](https://asf.alaska.edu/data-sets/derived-data-sets/sentinel-1-interferograms/): ARIA Sentinel-1 Geocoded Unwrapped Interferograms at 90m resolution, selecting within the [dateinit, datend] period the date that has most interferometric pairs as first date.
+- [`s2srm-[2018-2020]`](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_SR_HARMONIZED): Harmonized Sentinel-2 Level 2A surface reflectance data at 10m resolution. Includes 10 spectral bands (B2, B3, B4, B5, B6, B7, B8, B8A, B11, B12) as cloudless monthly medians for March, June, September, and December.
 
-- [`s2rgbm-year`](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_SR_HARMONIZED): Harmonized Sentinel-2 Level 2A selecting the [year] of preference, three channels (red, green, blue) monthly cloudless median at 10m resolution.
+- [`biomass-2020`](https://climate.esa.int/en/projects/biomass/): ESA Climate Change Initiative (CCI) Above Ground Biomass annual maps at 90m resolution.
 
+- [`esaworldcover-2020`](https://developers.google.com/earth-engine/datasets/catalog/ESA_WorldCover_v100): ESA World Cover land use/land cover maps at 10m resolution.
 
+- [`modis44b006veg`](https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MOD44B): MODIS Vegetation Continuous Fields (VCF) annual maps at 250m resolution.
 
-- [`biomass-2020`](https://climate.esa.int/en/projects/biomass/): ESA CCI Above Ground Biomass annual maps at 90m resolution.
+- [`ghsbuilts-2020`](https://human-settlement.emergency.copernicus.eu/download.php?ds=bu): European Commission JRC Global Human Settlement Layer (GHSL) Built-up Surface dataset at 100m resolution.
 
-- [`esaworldcover-2020`](https://developers.google.com/earth-engine/datasets/catalog/ESA_WorldCover_v100): ESA World Cover land cover maps at 10m resolution.
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-- [`modis44b006veg`](https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MOD44B): MODIS Vegetation Continuous Field annual maps at 250m resolution.
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-- [`ghsbuilts-2020`](https://human-settlement.emergency.copernicus.eu/download.php?ds=bu): EU JRC Global Human Settlement Layer Builtup Surface at 100m resolution.
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-- [`srtmdem`](https://developers.google.com/earth-engine/datasets/catalog/CGIAR_SRTM90_V4): NASA SRTM digital elevetation model at 30m resolution.
+- [`srtmdem`](https://developers.google.com/earth-engine/datasets/catalog/CGIAR_SRTM90_V4): NASA Shuttle Radar Topography Mission (SRTM) digital elevation model at 30m resolution.