Abstract:We use GRACE time-variable gravity field data, provided by CSR, to invert mass change of the Antarctic ice sheet from 2003 to 2016. The results show that there is a trend of ice sheet melting in the Antarctic region, with the rate of (-101.27±7.02) Gt/a. It is continuously accelerating. Ice sheet mass accumulation appears in the EA region, with the rate of (69.09±2.64) Gt/a, but the rate has decreased greatly recently. The melting rate in the WA region is (-148.35±6.78) Gt/a, which shows an accelerating trend and is the main area of mass melting of the Antarctic ice sheet. The melting rate in AP region is (-22.01±1.44) Gt/a,and the change is relatively stable.
CUI Lilu,ZHANG Cheng,ZOU Zhengbo et al. Time Series Analysis of the Antarctic Ice Sheet Mass Change during 2003 to 2016[J]. jgg, 2020, 40(12): 1219-1222.