The Analysis of the Southwestern Landwater Storage Based on GRACE Data

Details The Analysis of the Southwestern Landwater Storage Based on GRACE Data The Analysis of the Southwestern Landwater Storage Based on GRACE Data

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..145l&link_type=abstract

Acta Astronomica Sinica, vol. 52, no. 2, p. 145-151

Astronomy and Astrophysics

Astronomy

Astrometry, Celestial Mechanics, Methods: Numerical

Scientific paper

Based on the 64-month data of GRACE (Gravity Recovery and Climate Experiment) from January 2005 to April 2010, the inversion of the landwater storage in the southwest China is carried out in this paper. GRACE is a near polar orbiting satellite, so the subsatellite points become dense with increasing latitude, and thus the region with a higher latitude has a higher spatial resolution. By repeated calculations and comparison, it is found that with appropriate Gaussian radius (R=600 km) in the southwest China and taking the monthly average gravitational field as the background gravitational field, the landwater storage estimated from GRACE data well reflects the climate change and the drought in early 2010.

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