INVESTIGATION ON ANTARCTIC MASS BALANCE WITH GRACE

ADVANCES IN POLAR SCIENCE ›› 2009, Vol. 21 ›› Issue (1): 43-47.

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INVESTIGATION ON ANTARCTIC MASS BALANCE WITH GRACE

DI Ning, WANG Ze-Min, E Dong-Chen

1Chinese Antarctic Center of Surveying and Mapping; SGG; Wuhan University; Wuhan 430079; China; 2Key Laboratory of Polar Surveying and Mapping; SBSM; 3Zhuhai Ocean and Fishery Environment Monitoring Center; Zhuhai 519000; China

Online:2009-03-30 Published:2009-03-30

Abstract

Abstract:

Using measurements of time-variable gravity field from the Gravity Recovery and Climate Experiment(GRACE)satellite,mass variations of the Antarctic ice and snow are estimated. Because C20 of GRACE is not accurate enough,C20 harmonic from Satellite Laser Ranging(SLR) is adopted instead. The results show that mass loses in West Antarctica,and mass is in balance in East Antarctica. And the rate of Antarctic mass loss is-0.689±0.172cm/a.

Key words: GRACE, time variable gravity field, Antarctica

DI Ning, WANG Ze-Min, E Dong-Chen. INVESTIGATION ON ANTARCTIC MASS BALANCE WITH GRACE[J]. ADVANCES IN POLAR SCIENCE, 2009, 21(1): 43-47.

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INVESTIGATION ON ANTARCTIC MASS BALANCE WITH GRACE

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