CHANGE OF SURFACE ELEVATION IN ANTARCTIC ICE SHEETS
BY ICESAT MEASUREMENT
Chinese Antarctic Center of Surveying and Mapping,Wuhan University,Wuhan 430079
Abstract ICESat is the first satellite with laser altimeter.One of its purposes is to determinate the changes of Antarctic ice sheets.The repeat track analysis method was applied to calculate elevation changes of Antarctic ice sheets with ICESat GLA12 data from 2004 to 2008.The results show that the elevation changed evidently in West Antarctica,and decreased in many parts.However,the elevation changed does not obviously in the East Antarctic inland areas,decreases in parts of the East Antarctic coasts
Key words :
ICESat
altimetry
repeat track analysis
Antarctic
ice sheet
Received: 01 August 2013
Published: 09 December 2014
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