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Hydrologic Applications of GRACE Terrestrial Water Storage DataGravimetry-based terrestrial water storage time series have great potential value for hydrological research and applications, because no other observing system can provide global maps of the integrated quantity of water stored on and below the land surface. However, these data are challenging to use because their spatial and temporal resolutions are low relative to other hydrological observations and because total terrestrial water storage is a measurement unfamiliar to hydrologists. In this presentation we will review techniques for temporal, horizontal, and vertical disaggregation of GRACE terrestrial water storage anomalies, including data assimilation and integration within a land surface model. We will then discuss initial results from three efforts to use the methods for water resources applications. These include drought monitoring across North America, water cycle assessment over the Middle East North African region, and groundwater depletion estimates for northern India.
Document ID
20100019457
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Rodell, Matthew
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Zaitchik, Benjamin F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Li, Bailing
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bolten, John
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hourborg, Rasmus
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Velicogna, Isabella
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Famiglietti, Jay
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
December 14, 2009
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: 2009 American Geophysical Union Conference
Location: San Francisco, CA
Country: United States
Start Date: December 14, 2009
End Date: December 18, 2009
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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