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HDISC: HYDROLOGY DATA AND INFORMATION SERVICES CENTER

warn_icon.gif IMPORTANT MESSAGE Apr 14, 2014    GLDAS-2.0 data reprocessing    

A reprocessing of GLDAS Version 2.0 (GLDAS-2.0) data is ongoing. This reprocessing is to resolve an output precision issue associated with the variable, specific humidity. Therefore, only the variable, specific humidity, is affected; all other variables remain unchanged. For the period of reprocessing, the GrADS Data Server (GDS) has been disabled for the GLDAS-2.0 data set. Other data access methods remain available.

The GDS will be re-enabled after the reprocessing has been completed. As an estimate, it may take about three weeks to complete the reprocessing. Thanks a lot for your patience.

Supporting the Hydrological Sciences Laboratory (HSL)

The Hydrology DISC supports data products generated by GSFC's Hydrological Sciences Branch. Data products from the North America Land Data Assimilation System (NLDAS) and the Global Land Data Assimilation System (GLDAS) can  be accessed through anonymous ftp, the Mirador search and access tool or the GrADS Data Server (GDS). NLDAS and GLDAS systems integrate data from multiple space-based Earth observing systems using advanced land surface modeling and assimilation techniques. These products support weather and climate forecast experiments, water resources applications, and water and energy cycle research.

The data are provisional and subject to change as model improvements are implemented and new input data sets become available.

Other atmospheric moisture and precipitation products are available from the AIRS and Precipitation Data and Information Services Centers.

 


Latest News

NLDAS-2 VIC hourly 0-100 cm soil moisture content of 00Z January 1, 2014. Note the low soil moisture in the Southwest, Pacific Northwest, and California, consistent with reported drought conditions.
Apr 11, 2014 - NLDAS Phase 2 VIC Model Data Sets Released by NASA GES DISC

New data release complements previously released Mosaic and NOAH hydrological model data

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TRMM rain rate quasi-climatology for the state of New York in August.  Variations in rainfall and sunlight in the summer are important for viniculture in the Finger Lakes region of New York.
Apr 11, 2014 - The March 2014 issue of The Giovanni News is online

Aerosols and evapo-transpiration, climate change investigations, and quasi-climatologies this month

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GES DISC - USGS collaboration makes NLDAS and GLDAS hydrological data more compatible with Geographical Information System (GIS) analyses.
Mar 28, 2014 - GES DISC – USGS collaboration for hydrological assimilation model data

The Geo Data Portal offers a region-specific analysis capability

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Mar 21, 2014 - NASA GES DISC Presentations at ASPRS 2014

Data preservation efforts and rainfall estimation for agriculture described

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Excel spreadsheet and data plot of monthly NLDAS 0-100cm soil moisture content for Texas, 1979-2013.
Mar 13, 2014 - NLDAS and GLDAS data sets accessible through the USGS GDP

NASA-USGS collaboration allows new visualization options for hydrologic data

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Last updated: Aug 28, 2013 12:28 PM ET