GLDAS

Overview
Extent
    Global
Spatial Resolution
    ~24km
Data Source(s)
    NASA Land Data Assimilation System
Science Partner

Description

Global Land Data Assimilation System (GLDAS) is a dataset composed of land surface fluxes and states. It is produced using satellite and land-based observational data products with a non coupled land surface modeling system and data assimilation techniques (Rodell et al., 2004). GLDAS provides climate variables, soil moisture, and snow data.

 

Evapotranspiration: Actual evapotranspiration (ETa)

Total Runoff: Mean runoff (volume/area)

Surface Soil Moisture (0-10cm): Soil moisture storage in first 10cm of soil (volume/area)

Root Zone Soil Moisture (0-100cm): Soil moisture storage in first 100cm of soil (volume/area)

Snow Depth: Depth of snow

Snow Water Equivalent (SWE): Depth of water if snow were to melt completely (volume/area)

Technical Information

Feature
Detail
Extent
Global
Period of Record
2000-present
Spatial Resolution
~24km
Temporal Resolution
Daily
Data Summaries
max, min, mean, median, anomalies, trend and statistical significance, spatial and temporal aggregations, time series, standardized indices
Data Source(s)
NASA Land Data Assimilation System
Data Formats
raster (geotiff), raster tile (tile ID), time series (.csv, .xls, .json, .geojson)
Sources

Rodell, M., Houser, P. R., Jambor, U. E. A., Gottschalck, J., Mitchell, K., Meng, C. J., … & Entin, J. K. (2004). The global land data assimilation system. Bulletin of the American Meteorological Society, 85(3), 381-394.

End User License Agreement

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Your license is subject to your prior acceptance of either this Licensed Application End User License Agreement (“Standard EULA”), or a custom end user license agreement between you and the Application Provider (“Custom EULA”), if one is provided.

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