中文摘要：

利用时间间隔只有一天的ERS-1／2雷达卫星干涉数据，采用合成孔径雷达干涉测量方法（InSAR），提取了青藏高原唐古拉山地区冬克玛底冰川的数字高程模型（DEM）和冰流运动速度参数。并利用该区域1：50000的DEM对干涉DEM进行了对比验证。同时根据干涉方法提取的冰流运动速度分析了冬克玛底冰川表面冰流运动的特点。研究表明，雷达干涉测量技术是精确提取中国西部山谷冰川地形和运动速度的有效手段，短时间基线的SAR干涉对更利于避免时间去相干问题。

英文摘要：

The earth resources satellite （ERS）-1/2 image pair at intervals of one day was selected to calculate the the digital elevation model （DEM） and the surface velocity map of the Dongkemadi glacier of the Qinghai-Tibet Plateau using the synthetic aperture radar interfemmetry （InSAR） for the first time. The InSAR DEM was compared with the 1：50000 DEM for validation of it. And the characteristics of the glacier surface motion were analyzed according to the derrived glacier velocity. The results show that the InSAR is the an effective means to derive the parameters of the glaciers in the Western China and the shorter temporal baseline InSAR pair is more suitable for avoiding the temporal deeorrelation.