Glacier area shrinkage in China and its climatic background during the past half century
Glacier area shrinkage in China and its climatic background during the past half century
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DOI：
10.1007/s11442-012-0908-3
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发表时间：
2012-01
影响因子：
4.9
通讯作者：
Mingjun Zhang;Sheng-jie Wang;Zhong-qin Li;Feiteng Wang
中科院分区：
文献类型：
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作者：
Mingjun Zhang;Sheng-jie Wang;Zhong-qin Li;Feiteng Wang
根据中国典型地区冰川面积变化的遥感监测记录，以及139个测站的气温、降水和28个测站的0°C等温线高度等气象资料，讨论了近世纪来中国冰川面积萎缩及其气候背景。本研究计算的冰川面积在1960/1970年代为23，982平方公里，但在2000年代，目前的面积仅为21，893平方公里。冰川面积加权收缩率为10.1%，自1960年以来，冰川面积变化的年内插百分比（APAC）为0.3% a-1。高APAC出现在伊犁河流域和天山周围的准噶尔内陆盆地、阿尔泰山周围的鄂毕河流域、祁连山周围的河西内陆盆地等。冰川退缩受气候背景的影响，夏季显著变暖抵消了降水略有增加对冰川的影响。
Based on the glacier area variation records in the typical regions of China monitored by remote sensing, as well as the meteorological data of air temperature and precipitation from 139 stations and the 0°C isotherm height from 28 stations, the glacier area shrinkage in China and its climatic background in the past half century was discussed. The initial glacier area calculated in this study was 23,982 km2in the 1960s/1970s, but the present area was only 21,893 km2in the 2000s. The area-weighted shrinking rate of glacier was 10.1%, and the interpolated annual percentage of area changes (APAC) of glacier was 0.3% a−1since 1960. The high APAC was found at the Ili River Basin and the Junggar Interior Basin around the Tianshan Mountains, the Ob River Basin around the Altay Mountains, the Hexi Interior Basin around the Qilian Mountains, etc. The retreat of glacier was affected by the climatic background, and the influence on glacier of the slight-increased precipitation was counteracted by the significant warming in summer.