HR: 0800h
AN: H21F-1084 INVITED     [Abstracts]
TI: Satellite Monitoring of Global Groundwater Resources
AU: * Famiglietti, J
EM: jfamigli@uci.edu
AF: University of California, Irvine, Dept. of Earth System Science, Irvine, CA 92697 United States
AU: Rodell, M
EM: Matthew.Rodell@nasa.gov
AF: Hydrological Sciences Branch, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AB: In this presentation we discuss research and opportunities for satellite observations of global groundwater resources. We review the recent Gravity Recovery and Climate Experiment (GRACE) mission, including pre-launch and post-launch studies on monitoring aquifer storage changes, as well as plans to develop a set of global data products for exploring the role of groundwater in the global water cycle. These products will primarily be developed from GRACE observations, but would include other sensor data, in situ observations and model output as appropriate. Products may include global, monthly fields of groundwater recharge rates and storage changes; groundwater storage changes for a discrete subset of the world's major unconfined aquifers; and estimates of submarine groundwater discharge along continental margins. Such information could help constrain the storage, residence times, recharge and baseflow rates for the saturated subsurface, and would facilitate development or enhancement of groundwater parameterizations in the land component of climate models. Further, such information can help elucidate the role of progressively deeper soil moisture and groundwater storage in land memory and climate feedback processes.
DE: 1655 Water cycles (1836)
DE: 1803 Anthropogenic effects
DE: 1829 Groundwater hydrology
DE: 1833 Hydroclimatology
DE: 1640 Remote sensing
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting