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《Urban Geotechnical Investigation & Surveying》 2013-05
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Antarctic Ice Sheet Elevation Changes Estimated by Rectangular Segment from ICESAT / GLAS

Wang Bin;Zhou Xuefeng;Ding Jinxuan;Wang Xuehai;Zhao Wenfeng;Chinese Nonferrous Metal Survey and Design Institute of Changsha Co. ,Ltd.;College of Civil Engineering of Tongji University;  
Koala has proposed the idea of satellite altimetry in 1969 at first,which has widely used in high-precision determination of the Antarctic ice sheet elevation change,mass balance and global sea level change research. In this paper,a total of 14 data from February 2003 to October 2008 has been devoted to the research of the anniversary of the polar ice sheet elevation change,which has been designed along the track 510 meter,across the track 390 meter,because of the lack of data in the method of overlap footprint. It has fully considered that Surface slope,seasonal changes,elevation changes composted the time series,and then used the method of the least-squares adjustment. Compared to the overlaping footprint method,data would been increased signficantly for the study area,accuracy of the results would been improved and the reliability of the model would also been enhanced. It has showed that this method of analysis of the Antarctic ice sheet elevation annual change was effective.
【Fund】: 国家“863”计划重点项目(2008AA121702)
【CateGory Index】: P343.6;P228
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