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  # Snow Water Equivalent Forecasting Training Data
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  ## Description
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- This dataset contains information about snow water equivalent (SWE), temperature, precipitation, wind speed, relative humidity, and related climate variables across different locations and time periods. It includes daily observations and derived variables for hydrological and climate analysis.
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  ## Authors
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  - Ziheng Sun
@@ -25,45 +25,62 @@ This dataset contains information about snow water equivalent (SWE), temperature
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  ## Year
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  2024
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- ## Data Provenance
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- ### SNOTEL
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- The following columns are sourced from the **SNOTEL** dataset:
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- | Column Name | Unit | Data Type | Description |
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- |------------------------------|------------|-----------|----------------------------------------------------|
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- | **station_name** | - | Object | Name of the observation station. |
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- | **swe_value** | Inches | Float64 | Measured value of SWE. |
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- | **change_in_swe_inch** | Inches | Float64 | Change in SWE in inches. |
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- | **snow_depth** | Inches | Float64 | Depth of the snow at the observation site. |
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- | **air_temperature_observed_f** | Fahrenheit | Float64 | Observed air temperature. |
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- | **precipitation_amount** | Inches | Float64 | Amount of precipitation recorded. |
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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- ### GridMET
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- The following columns are sourced from the **GridMET** dataset:
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- | Column Name | Unit | Data Type | Description |
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- |---------------------------------|--------------|-----------|-------------------------------------------------|
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- | **relative_humidity_rmin** | Percentage | Float64 | Minimum relative humidity recorded. |
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- | **potential_evapotranspiration** | Inches/day | Float64 | Potential rate of evaporation and transpiration. |
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- | **air_temperature_tmmx** | Fahrenheit | Float64 | Maximum air temperature recorded. |
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- | **relative_humidity_rmax** | Percentage | Float64 | Maximum relative humidity recorded. |
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- | **mean_vapor_pressure_deficit** | kPa | Float64 | Mean vapor pressure deficit. |
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- | **air_temperature_tmmn** | Fahrenheit | Float64 | Minimum air temperature recorded. |
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- | **wind_speed** | m/s | Float64 | Wind speed at the observation location. |
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-
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- ### USGS SRTM
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- The following columns are sourced from the **USGS SRTM** dataset:
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- | Column Name | Unit | Data Type | Description |
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- |----------------|----------|-----------|-----------------------------------------|
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- | **Elevation** | Meters | Float64 | Elevation of the observation site. |
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- | **Aspect** | Degrees | Float64 | Compass direction the slope faces. |
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- | **Curvature** | - | Float64 | Terrain curvature at the observation site. |
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- | **Northness** | - | Float64 | Degree of orientation towards the north. |
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- | **Eastness** | - | Float64 | Degree of orientation towards the east. |
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-
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- ### MODIS fSCA
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- The following column is sourced from the **MODIS fSCA** dataset:
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- | Column Name | Unit | Data Type | Description |
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- |-------------|------------|-----------|-------------------------------------------|
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- | **fsca** | Percentage | Float64 | Fractional snow-covered area. |
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  ## Data Processing
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  - **Cumulative Metrics**: Columns with cumulative prefixes (e.g., `cumulative_relative_humidity_rmax`) start accumulating data from the previous water year, typically beginning on October 1. These metrics are not normalized unless specified.
@@ -81,45 +98,6 @@ The following column is sourced from the **MODIS fSCA** dataset:
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  - **USGS SRTM**: [USGS SRTM Website](https://www.usgs.gov/)
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  - **MODIS fSCA**: [MODIS Website](https://modis.gsfc.nasa.gov/)
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- ## Columns
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- | Column Name | Unit | Data Type | Description |
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- |-----------------------------------------|--------------|-----------|-----------------------------------------------------------------------------------------------|
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- | **date** | - | Object | Date of the observation. |
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- | **lat** | Degrees | Float64 | Latitude of the observation location. |
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- | **lon** | Degrees | Float64 | Longitude of the observation location. |
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- | **SWE** | Inches | Float64 | Snow water equivalent at the observation point. |
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- | **SWE_1** | Inches | Float64 | SWE value from one day before. |
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- | **air_temperature_tmmn_1** | Fahrenheit | Float64 | Minimum air temperature from one day before. |
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- | **potential_evapotranspiration_1** | Inches/day | Float64 | Potential evapotranspiration from one day before. |
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- | **mean_vapor_pressure_deficit_1** | kPa | Float64 | Mean vapor pressure deficit from one day before. |
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- | **relative_humidity_rmax_1** | Percentage | Float64 | Maximum relative humidity from one day before. |
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- | **relative_humidity_rmin_1** | Percentage | Float64 | Minimum relative humidity from one day before. |
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- | **precipitation_amount_1** | Inches | Float64 | Precipitation amount from one day before. |
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- | **air_temperature_tmmx_1** | Fahrenheit | Float64 | Maximum air temperature from one day before. |
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- | **wind_speed_1** | m/s | Float64 | Wind speed from one day before. |
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- | **fsca_1** | Percentage | Float64 | Fractional snow-covered area from one day before. |
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- | **SWE_2** | Inches | Float64 | SWE value from two days before. |
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- | **air_temperature_tmmn_2** | Fahrenheit | Float64 | Minimum air temperature from two days before. |
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- | **potential_evapotranspiration_2** | Inches/day | Float64 | Potential evapotranspiration from two days before. |
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- | **mean_vapor_pressure_deficit_2** | kPa | Float64 | Mean vapor pressure deficit from two days before. |
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- | **relative_humidity_rmax_2** | Percentage | Float64 | Maximum relative humidity from two days before. |
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- | **relative_humidity_rmin_2** | Percentage | Float64 | Minimum relative humidity from two days before. |
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- | **precipitation_amount_2** | Inches | Float64 | Precipitation amount from two days before. |
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- | **air_temperature_tmmx_2** | Fahrenheit | Float64 | Maximum air temperature from two days before. |
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- | **wind_speed_2** | m/s | Float64 | Wind speed from two days before. |
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- | **fsca_2** | Percentage | Float64 | Fractional snow-covered area from two days before. |
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- | **cumulative_SWE** | Inches | Float64 | Cumulative SWE over a specific time period starting from October 1. |
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- | **cumulative_air_temperature_tmmn** | Fahrenheit | Float64 | Cumulative minimum air temperature over a specific time period starting from October 1. |
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- | **cumulative_potential_evapotranspiration** | Inches/day | Float64 | Cumulative potential evapotranspiration starting from October 1. |
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- | **cumulative_mean_vapor_pressure_deficit** | kPa | Float64 | Cumulative mean vapor pressure deficit starting from October 1. |
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- | **cumulative_relative_humidity_rmax** | Percentage | Float64 | Cumulative maximum relative humidity starting from October 1. |
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- | **cumulative_relative_humidity_rmin** | Percentage | Float64 | Cumulative minimum relative humidity starting from October 1. |
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- | **cumulative_precipitation_amount** | Inches | Float64 | Cumulative precipitation amount starting from October 1. |
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- | **cumulative_air_temperature_tmmx** | Fahrenheit | Float64 | Cumulative maximum air temperature starting from October 1. |
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- | **cumulative_wind_speed** | m/s | Float64 | Cumulative wind speed starting from October 1. |
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- | **cumulative_fsca** | Percentage | Float64 | Cumulative fractional snow-covered area starting from October 1. |
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-
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-
123
  ## License
124
  CC-BY-4.0
125
 
 
7
  # Snow Water Equivalent Forecasting Training Data
8
 
9
  ## Description
10
+ This dataset contains information about snow water equivalent (SWE), temperature, precipitation, wind speed, relative humidity, and related climate variables across different locations and time periods. It includes daily observations and derived variables for hydrological and climate analysis. An additional column, `source`, specifies the origin of each data column.
11
 
12
  ## Authors
13
  - Ziheng Sun
 
25
  ## Year
26
  2024
27
 
28
+ ## Data Provenance and Columns
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+ | Column Name | Unit | Data Type | Description | Source |
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+ |-----------------------------------------|--------------|-----------|-----------------------------------------------------------------------------------------------|------------------|
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+ | **date** | - | Object | Date of the observation. | |
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+ | **lat** | Degrees | Float64 | Latitude of the observation location. | |
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+ | **lon** | Degrees | Float64 | Longitude of the observation location. | |
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+ | **SWE** | Inches | Float64 | Snow water equivalent at the observation point. | |
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+ | **SWE_1** | Inches | Float64 | SWE value from one day before. | |
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+ | **air_temperature_tmmn_1** | Fahrenheit | Float64 | Minimum air temperature from one day before. | |
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+ | **potential_evapotranspiration_1** | Inches/day | Float64 | Potential evapotranspiration from one day before. | |
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+ | **mean_vapor_pressure_deficit_1** | kPa | Float64 | Mean vapor pressure deficit from one day before. | |
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+ | **relative_humidity_rmax_1** | Percentage | Float64 | Maximum relative humidity from one day before. | |
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+ | **relative_humidity_rmin_1** | Percentage | Float64 | Minimum relative humidity from one day before. | |
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+ | **precipitation_amount_1** | Inches | Float64 | Precipitation amount from one day before. | |
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+ | **air_temperature_tmmx_1** | Fahrenheit | Float64 | Maximum air temperature from one day before. | |
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+ | **wind_speed_1** | m/s | Float64 | Wind speed from one day before. | |
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+ | **fsca_1** | Percentage | Float64 | Fractional snow-covered area from one day before. | MODIS fSCA |
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+ | **SWE_2** | Inches | Float64 | SWE value from two days before. | |
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+ | **air_temperature_tmmn_2** | Fahrenheit | Float64 | Minimum air temperature from two days before. | |
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+ | **potential_evapotranspiration_2** | Inches/day | Float64 | Potential evapotranspiration from two days before. | |
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+ | **mean_vapor_pressure_deficit_2** | kPa | Float64 | Mean vapor pressure deficit from two days before. | |
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+ | **relative_humidity_rmax_2** | Percentage | Float64 | Maximum relative humidity from two days before. | |
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+ | **relative_humidity_rmin_2** | Percentage | Float64 | Minimum relative humidity from two days before. | |
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+ | **precipitation_amount_2** | Inches | Float64 | Precipitation amount from two days before. | |
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+ | **air_temperature_tmmx_2** | Fahrenheit | Float64 | Maximum air temperature from two days before. | |
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+ | **wind_speed_2** | m/s | Float64 | Wind speed from two days before. | |
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+ | **fsca_2** | Percentage | Float64 | Fractional snow-covered area from two days before. | MODIS fSCA |
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+ | **cumulative_SWE** | Inches | Float64 | Cumulative SWE over a specific time period starting from October 1. | SNOTEL |
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+ | **cumulative_air_temperature_tmmn** | Fahrenheit | Float64 | Cumulative minimum air temperature over a specific time period starting from October 1. | |
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+ | **cumulative_potential_evapotranspiration** | Inches/day | Float64 | Cumulative potential evapotranspiration starting from October 1. | |
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+ | **cumulative_mean_vapor_pressure_deficit** | kPa | Float64 | Cumulative mean vapor pressure deficit starting from October 1. | |
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+ | **cumulative_relative_humidity_rmax** | Percentage | Float64 | Cumulative maximum relative humidity starting from October 1. | |
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+ | **cumulative_relative_humidity_rmin** | Percentage | Float64 | Cumulative minimum relative humidity starting from October 1. | |
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+ | **cumulative_precipitation_amount** | Inches | Float64 | Cumulative precipitation amount starting from October 1. | |
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+ | **cumulative_air_temperature_tmmx** | Fahrenheit | Float64 | Cumulative maximum air temperature starting from October 1. | |
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+ | **cumulative_wind_speed** | m/s | Float64 | Cumulative wind speed starting from October 1. | |
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+ | **cumulative_fsca** | Percentage | Float64 | Cumulative fractional snow-covered area starting from October 1. | MODIS fSCA |
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+ | **station_name** | - | Object | Name of the observation station. | SNOTEL |
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+ | **swe_value** | Inches | Float64 | Measured value of SWE. | SNOTEL |
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+ | **change_in_swe_inch** | Inches | Float64 | Change in SWE in inches. | SNOTEL |
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+ | **snow_depth** | Inches | Float64 | Depth of the snow at the observation site. | SNOTEL |
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+ | **air_temperature_observed_f** | Fahrenheit | Float64 | Observed air temperature. | SNOTEL |
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+ | **precipitation_amount** | Inches | Float64 | Amount of precipitation recorded. | SNOTEL |
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+ | **relative_humidity_rmin** | Percentage | Float64 | Minimum relative humidity recorded. | GridMET |
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+ | **potential_evapotranspiration** | Inches/day | Float64 | Potential rate of evaporation and transpiration. | GridMET |
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+ | **air_temperature_tmmx** | Fahrenheit | Float64 | Maximum air temperature recorded. | GridMET |
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+ | **relative_humidity_rmax** | Percentage | Float64 | Maximum relative humidity recorded. | GridMET |
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+ | **mean_vapor_pressure_deficit** | kPa | Float64 | Mean vapor pressure deficit. | GridMET |
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+ | **air_temperature_tmmn** | Fahrenheit | Float64 | Minimum air temperature recorded. | GridMET |
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+ | **wind_speed** | m/s | Float64 | Wind speed at the observation location. | GridMET |
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+ | **Elevation** | Meters | Float64 | Elevation of the observation site. | USGS SRTM |
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+ | **Aspect** | Degrees | Float64 | Compass direction the slope faces. | USGS SRTM |
80
+ | **Curvature** | - | Float64 | Terrain curvature at the observation site. | USGS SRTM |
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+ | **Northness** | - | Float64 | Degree of orientation towards the north. | USGS SRTM |
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+ | **Eastness** | - | Float64 | Degree of orientation towards the east. | USGS SRTM |
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85
  ## Data Processing
86
  - **Cumulative Metrics**: Columns with cumulative prefixes (e.g., `cumulative_relative_humidity_rmax`) start accumulating data from the previous water year, typically beginning on October 1. These metrics are not normalized unless specified.
 
98
  - **USGS SRTM**: [USGS SRTM Website](https://www.usgs.gov/)
99
  - **MODIS fSCA**: [MODIS Website](https://modis.gsfc.nasa.gov/)
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  ## License
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  CC-BY-4.0
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