高亚洲冰、雪和环境专题 最新来稿(未评审) 版本 ZH1
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2000~2013年黄河源区阿尼玛卿山冰川表面高程变化数据集
A dataset of glacier surface elevation changes in Anyemaqen mountains, source region of Yellow River during 2000 – 2013
: 2018 - 06 - 30
: 2018 - 07 - 02
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摘要&关键词
摘要:阿尼玛卿山集中了黄河源区大部分冰川,相关数据对黄河源区气候变化指示及冰川水资源评估具有重要参考意义。本数据集应用2013年10月31日的TanDEM-X/TerraSAR-X双基站合成孔径雷达数据与SRTM( Shuttle Radar Topographical Mission)DEM( Digital elevation Model)进行差分干涉获得了阿尼玛卿山冰川的数字高程模型及近13年冰川表面高程变化数据集。数据集覆盖黄河源区阿尼玛卿山全部冰川,TanDEM数字高程模型的水平方向像素大小10 m、高程误差小于2 m,高程变化数据集水平方向像素大小为30 m、高程精度为3.7 m。考虑到雷达图像的阴影与叠掩现象,高程变化数据集剔除了阴影和叠掩等不可靠区域。本数据集是黄河源区冰川变化及冰川水资源评估的重要基础数据,是后续该区域冰川体积变化研究的基础。
关键词:阿尼玛卿山;TanDEM-X/TerraSAR-X;数字高程模型;冰面高程变化
Abstract & Keywords
Abstract: Glacier surface elevation change (2000-2013) and Digital elevation Model (DEM) were obtained by bi-static satellite data TanDEM-X/TerraSAR-X differential interferometry with Shuttle Radar Topographical Mission Digital elevation Model (SRTM dem)in Ányêmaqên Mountains, source region of Yellow River . The pixel size of the TanDEM dem is 10 m in horizontal direction, and relative errors less than 2 m. The vertical errors of glacier surface elevation change is 3.7 m and pixel size is 30 m in horizontal direction. The unreliable region due to shadow and layover in RADAR image is masked out and removed. The data set can be a baseline for glacier elevation andvolume change, and glacier water resources appraising.
Keywords: Anyemaqen Mountains; TanDEM-X/TerraSAR-X; Digital elevation model; glacier surface elevation change
稿件与作者信息
蒋宗立
Jiang Zongli
刘时银
Shiyin Liu
shiyin.liu@ynu.edu.cn
郭万钦
Guo Wanqin
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