| Popis: |
The Antarctic equivalent water height time series and the corresponding trends on a 1°×1° grid were derived based on 5-year GRACE data. The results show Amundsen in west Antarctica with strong negative rate exceeding –80 mm/a, Antarctic Peninsula with negative rate, and Enderby Land in east Antarctica with positive rate. Equivalent water volume trends computed are –78 ± 37 km3/a, –3 ± 46 km3/a and –75 ± 50 km3/a, for Antarctica, east Antarctica and west Antarctica, and the corresponding sea level change are 0.21 ± 0.1 mm/a, 0.008 ± 0.127 mm/a and 0.2 ± 0.14 mm/a, over the period July 2002 to September 2007. The PGR model is proven to be the key factor for the study of Antarctic ice sheet. |
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