HR: 1340h
AN: G33B-0036    [Abstracts]
TI: Basin-Scale Hydrological Cycles from AMSR-E and GRACE
AU: * Ryu, D
EM: dryu@uci.edu
AF: Department of Earth System Science, University of California, Irvine, CA 92697 United States
AU: Syed, T H
EM: tsyed@uci.edu
AF: Department of Earth System Science, University of California, Irvine, CA 92697 United States
AU: Swenson, S C
EM: swensosc@colordo.edu
AF: Department of Physics and Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309 United States
AU: Famiglietti, J S
EM: jfamigli@uci.edu
AF: Department of Earth System Science, University of California, Irvine, CA 92697 United States
AB: Geophysical parameters observed from space are offering unique opportunities to understand global scale climatology and the water cycle. Surface soil moisture data from the Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) was utilized to estimate the monthly changes of basin-scale surface wetness. Monthly anomalies of basin-scale surface soil wetness were calculated in eighteen basins, whose locations range over various climatological and geographical conditions, and were compared with GRACE observations of water mass changes in the basins. The results indicate that basin-scale monthly surface wetness information from AMSR-E correlates well with the total water mass changes at low and mid-latitudes. However, they show lagged or anti-correlations in some basins at high latitudes, which snow cover and melt-related mass changes may account˙for. Results are discussed in the context of climatology and hydrological cycles.
DE: 1217 Time variable gravity (7223, 7230)
DE: 1833 Hydroclimatology
DE: 1855 Remote sensing (1640)
DE: 1866 Soil moisture
DE: 1876 Water budgets
SC: Geodesy [G]
MN: Fall Meeting 2005