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基于天山托木尔峰青冰滩72号冰川2008年高精度差分GPS测量资料,2009年末端重复测量数据以及1964年地形图,通过对比研究近45a来该冰川的变化特征,结果表明:1964～2009年,青冰滩72号冰川末端退缩1852m,年均后退41m,由此造成面积减少约为1.53km2,年均减少0.03km2;1964～2008年,冰舌平均减薄9.59±6m,年均减薄约0.22±0.14m,冰储量亏损达14.1±8.8×10-3km3(12.7±7.9×10-3km3w.e.)。与天山其它区域典型监测冰川相比,青冰滩72号冰川消融强烈,是区域气候、末端海拔、冰川类型、表碛覆盖等因素综合影响的结果。
Based on the 2008 high-precision differential GPS survey data of No.72 glacier beach of Tuomuer peak in Tianshan Mountains, the data of repeated measurements in the end of 2009 and the topographical map of 1964, the change characteristics of the glacier in recent 45 years were studied. The results show that: In 2009, the number of Glacier Bay retreat at the end of 72 glacier 1852m, with an average annual retreat of 41m, resulting in an area of about 1.53km2, an average annual decrease of 0.03km2; 1964 ~ 2008, the average glacier 9.59 ± 6m, average annual Thinning about 0.22 ± 0.14m, ice reserves loss of 14.1 ± 8.8 × 10-3km3 (12.7 ± 7.9 × 10-3km3w.e.). Compared with the typical monitoring glaciers in other parts of Tianshan Mountains, Glacier 72 has strong ablation, which is the result of the combined effects of regional climate, terminal elevation, glacial type and surface moraine coverage.