中文摘要：

2009年7月对祁连山东段冷龙岭地区宁缠河3号冰川进行了野外考察,对冰川周围布设测量控制网,并利用GPS-RTK技术测量了冰川表面高程与面积、末端等信息,同时使用加拿大EKKO型探地雷达测量了冰川厚度.结合1972年航测1973年调绘出版的地形图以及1995年与2009年两景TM影像等资料,分析研究了宁缠河3号冰川自1972年以来的变化.结果表明：宁缠河3号冰川近37a以来萎缩严重,冰川末端退缩约6%,面积减小13.1%,冰川体积减少35.3%;冰川主要以减薄的形式在萎缩,冰川平均厚度由1972年的36.8m,减为2009年的27.4m.周边站点气象资料表明,该区域近几十年来出现不同程度的升温,是导致冰川快速萎缩的主要原因.

英文摘要：

The Ningchan River Glacier No. 3 was investigated in July, 2009. During the investiga- tion, a control network was established around the glacier and the glacierized area, glacier terminal lo- cation and surface altitude were surveyed by using GPS-RTK. In addition, glacier depth was sounded by using EKKO GPR. Then it is possible to ana- lyze the variation of the glacier since 1972, through comparing the topographic map, which was based on aerial photo, 1972, and published in 1973, two TM images in 1995, 2009, and GPS-RTK data in 2009, It is found that the glacier has been shrink- ing seriously in the past 37 years, the glacier ter- minal has retreated about 6%, the glacierized area has reduced about 13.1%, and the glacier volume has reduced about 35.3%. Thinning is the main of the glacier shrinkage. The glacier average depth reduced from 36.8 m in 1972 to 27.4 m in 2009. Meteorological data around the study area shows that climate warming in different degree has taken place in recent decades, which is the main reason of rapid glacier shrinkage.