Strassberg G,Scanlon B R,Rodell M.Comparison of seasonal terrestrial water storage variations from GRECE with groundwater-leel measurements from the High Plains Aquifer(USA)[J].Geophysical Research Letters,2007,34(14):L14402.
[16]
Tiwari V M,Wahr J,Swenson S.Dwindling groundwater resources in northern India,from satellite gravity observations[J].Geophysical Research Letters,2009,36:L18401.
[17]
Mohamed A,Mohamed S,John W,et al.Integration of GRACE(Gravity Recovery and Climate Experiment) data with traditional data sets for a better understanding of the time-dependent water partitioning African watersheds[J].Geology,2011,39(5):479-482.
[18]
Chen J L,Wilson C R,Tapley B D,et al.2005 drought event in the Amazon River basin as measured by GRACE and estimated by climate models[J].Journal of Geophysical Research,2009,114:B05404.
Swenson S,Wahr J.Method for in ferring regional surface-mass anomalies from Gravity Recovery and Climate Experiment (GRACE) measurements of time-variable gravity[J].Journal of Geophysical,2002,107(B9):2193.
[22]
Jekeli C.Alternative Methods to Smooth the Earth's Gravity[R].Columbus,USA:Ohio University,1981.
[23]
Wahr J,Molenaar M,Bryan F.Time variability of the Earth's gravity field:hydrological and ceanic effects and their possible detection using GRACE[J].Journal of Geophysical Research,1998,103(B12):30205-30229.
