Terrestrial Hydrosphere Data Access and Tools

NASA data examine many characteristics of the liquid and frozen water and the dynamic processes they are part of across Earth’s landscape. Our datasets and tools help researchers translate these interconnected data points into actionable knowledge.

Dataset	Geographic Region	Temporal Extent	Data Format	Potential Application Areas	Related Subtopics
ALOS PALSAR High Resolution Radiometric Terrain Corrected Product	Global	2006-03-23 to 2011-04-22		Detailed wetland classification and monitoring	glaciers/ ice sheets, surface water
GLDAS Noah Land Surface Model L4 3 hourly 0.25 x 0.25 degree V2.1	Global Land	2000-01-01 to Present	NetCDF	Hydrological cycle research and water resource management Flood forecasting and monitoring	ground water, surface water
GPM IMERG Final Precipitation L3 Half Hourly 0.1 degree x 0.1 degree V07	Global	1998-01-01 to Present	HDF5	High-resolution precipitation monitoring globally Extreme rainfall event detection and analysis Hydrological modeling and flood forecasting	surface water
MERRA-2 tavg1_2d_flx_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Surface Flux Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T1NXFLX)	Global	1980-01-01 to Present	NetCDF	Surface energy balance studies and monitoring Evaporation and precipitation pattern analysis Hydrological cycle component analysis	snow/ ice
NASA Shuttle Radar Topography Mission Global 1 arc second V003	Global Land	2000-02-11 to 2000-02-21	HGT	Hydrological modeling and watershed delineation Flood risk assessment	surface water
OPERA Surface Displacement from Sentinel-1 validated product (Version 1)	Global	2016-07-01 to Present	NetCDF-4 XML PNG Zarr	Ground subsidence monitoring in urban areas and infrastructure Aquifer depletion impact assessment	glaciers/ ice sheets, ground water
SENTINEL-1A_SLC	Global	2014-04-03 to Present		Interferometric analysis for surface deformation detection Coherence-based change detection Polarimetric analysis for target characterization Development of advanced SAR processing algorithms Time-series analysis for subtle change detection	glaciers/ ice sheets, snow/ ice, surface water
SENTINEL-1B_SLC	Global	2016-04-25 to 2021-12-24		High-resolution deformation mapping with interferometry Coherence analysis for subtle change detection Polarimetric target characterization Glacier velocity measurement and ice monitoring Time-series analysis for seasonal change patterns	glaciers/ ice sheets, snow/ ice, surface water
Sentinel-1C Dual Polarization High Resolution Ground Range Detected Product	Global	2025-01-01 to Present	SAFE	Wetland extent mapping and flood monitoring	glaciers/ ice sheets, surface water

Terrestrial Hydrosphere Datasets

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Spatial Resolution	Data Format
Merged Sentinel-3A and Sentinel-3B OLCI Regional Mapped Inland Waters (ILW) Data, version 5.0	5.0	Sentinel-3A, Sentinel-3B	OLCI	2016-04-25 to Present	N: 90 S: -90 E: 180 W: -180		netCDF-4
MERRA-2 tavg1_2d_flx_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Surface Flux Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T1NXFLX) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg1_2d_int_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Vertically Integrated Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T1NXINT) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg1_2d_lfo_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Land Surface Forcings 0.625 x 0.5 degree V5.12.4 (M2T1NXLFO) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg1_2d_lnd_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Land Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T1NXLND) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg1_2d_ocn_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Ocean Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T1NXOCN) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg3_2d_glc_Nx: 2d,3-Hourly,Time-Averaged,Single-Level,Assimilation,Land Ice Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T3NXGLC) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_flx_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Surface Flux Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXFLX) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_glc_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Land Ice Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXGLC) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_int_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Vertically Integrated Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXINT) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_lfo_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Land Surface Forcings 0.625 x 0.5 degree V5.12.4 (M2TMNXLFO) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_lnd_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Land Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXLND) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_ocn_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Ocean Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXOCN) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_flx_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Surface Flux Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXFLX) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_glc_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Land Ice Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXGLC) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_int_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Vertically Integrated Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXINT) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_lfo_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Land Surface Forcings 0.625 x 0.5 degree V5.12.4 (M2TUNXLFO) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_lnd_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Land Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXLND) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_ocn_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Ocean Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXOCN) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MODIS/Aqua Snow Cover 5-Min L2 Swath 500m NRT	6.1NRT	Aqua	MODIS	2021-02-07	N: 90 S: -90 E: 180 W: -180		HDF-EOS
MODIS/Aqua Water Reservoir 8-Day L3 Global V061	061	Aqua	MODIS	2002-07-04 to Present	N: 90 S: -90 E: 180 W: -180		HDF-EOS2
MODIS/Aqua Water Reservoir Monthly L3 Global V061	061	Aqua	MODIS	2002-07-01 to Present	N: 90 S: -90 E: 180 W: -180		HDF-EOS2
MODIS/Aqua+Terra Global Flood Product L3 NRT 250m	6.1	Terra, Aqua	MODIS	2021-03-01 to Present	N: 90 S: -90 E: 180 W: -180	250 Meters x 250 Meters	HDF-EOS
MODIS/Aqua+Terra Global Flood Product L3 NRT 250m 1-day CS GeoTIFF	6.1	Terra, Aqua	MODIS	2021-03-15 to Present	N: 90 S: -90 E: 180 W: -180	250 Meters x 250 Meters	GeoTIFF
MODIS/Aqua+Terra Global Flood Product L3 NRT 250m 1-day GeoTIFF	6.1	Terra, Aqua	MODIS	2021-03-15 to Present	N: 90 S: -90 E: 180 W: -180	250 Meters x 250 Meters	GeoTIFF

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Terrestrial Hydrosphere Data Access and Tools

Commonly Used Datasets for Terrestrial Hydrosphere Applications

Terrestrial Hydrosphere Datasets

Terrestrial Hydrosphere Data Tools

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