Table 5 Overview of all added time-varying Earth system variables, their unit, and data source.
From: A Global-Scale Time Series Dataset for Groundwater Studies within the Earth System
Earth system variable | Column name in GROW | Unit in GROW | Data source (Source type) |
|---|---|---|---|
Precipitation | precipitation_mswep_mm_year-1 | mm/year | MSWEP V270 (Multi-source) |
Precipitation | precipitation_gpcc_mm_year-1 | mm/year | GPCC71 (Observation-based) |
Potential Evapo-transpiration | potential_evapotranspiration_era5_mm_year-1 | mm/year | |
Potential Evapo-transpiration | potential_evapotranspiration_gleam_mm_year-1 | mm/year | GLEAM475 (Model) |
Actual Evapotranspiration | actual_evapotranspiration_mm_year-1 | mm/year | GLEAM475 (Model) |
Interception loss | interception_mm_year-1 | mm/year | GLEAM475 (Model) |
Air temperature | air_temperature_°C | °C | |
Snow depth | snow_depth_m | m | |
Days per year with snow cover | days_with_snow_cover_days_year-1 | days/year | |
NDVI | ndvi_ratio | / | 1981-2013: AVHRR NDVI91; 2014-2024: VIIRS NDVI127 (Observation-based) |
Leaf area index of low vegetation | lai_low_vegetation_ratio | / | |
Leaf area index of high vegetation | lai_high_vegetation_ratio | / | |
Total water withdrawal for industrial use | withdrawal_industrial_m3_year-1 | m³/year | Wada et al.128 - indww_histsoc_annual (Model) |
Total water withdrawal for domestic use | withdrawal_domestic_m3_year-1 | m³/year | Wada et al.128 - domww_histsoc_annual (Model) |
Fraction of urban areas | urban_area_fraction | / | Volkholz & Ostberg125 - landuse-urbanareas_histsoc_annual (Model) |
Fraction of pastures | pastures_fraction | / | Volkholz & Ostberg125 - landuse-totals_histsoc_annual (Model) |
Fraction of rainfed cropland | cropland_rainfed_fraction | / | Volkholz & Ostberg125 - landuse-totals_histsoc_annual (Model) |
Fraction of irrigated cropland | cropland_irrigated_fraction | / | Volkholz & Ostberg125 - landuse-totals_histsoc_annual (Model) |
Fraction of forests and natural vegetation | forests_natural_vegetation_fraction | / | Volkholz & Ostberg125 - landuse-totals_histsoc_annual (Model) |
