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【SCI论文】Mapping the elevation change of Lambert Glacier inEast Antarctica using ICESat GLAS
[发布日期:2013/3/7  本文已被浏览过501次  改变字体大小:   ]

标题: Mapping the elevation change of Lambert Glacier inEast Antarctica using ICESat GLAS

作者: ZHANG Dong, SUN Bo, KE Chang-Qing, LI Xin, CUI Xiang-Bin, GUO Jing-Xue

来源出版物: Journal of Maps

卷: 8 期: 4 页: 473-477 DOI: 10.1080/17445647.2012.747355  出版年: 27 Nov 2012

摘要: We initially derived elevation changes of Geoscience Laser Altimeter System level-2 altimetry data of Lambert Glacier overlapping footprints during each mission from 2003 to 2008. Then, surface elevation changes during every two adjacent missions were interpolated using inverse distance weighted, natural neighbor, triangulated irregular network with linear method, radial basis functions and ANUDEM in ArcGIS. The best results were obtained by ANUDEM, so these data were clipped to conform to the study area boundary defined by hydrology tools. Finally, elevation changes over 10 periods were mapped. In these maps, we chose the Antarctic digital elevation model as background and used a translucent layer to mask the area outside Lambert Glacier, and then displayed elevation changes using gradient colors. Results indicate that elevation changes of the entire Lambert Glacier are not evident, particularly in the upstream area. There are a few elevation changes in some downstream areas. Elevation of the grounding zone in the southernmost Amery Ice Shelf decreased more than 2 m in 2004–2005, 2006–2007, and during 2008.

地址: [Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing, China],[SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, China]

通讯作者地址: Chang-Qing Ke (通讯作者), Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing, China.

电子邮件地址: kecq@nju.edu.cn

 
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