Despite a number of studies reporting glacier extent changes and their response to climate change over the eastern Tien Shan, glacier mass-balance changes over multiple decades are still not well reconstructed. Here, glacier mass budgets on the Karlik Range, easternmost Tien Shan during the time spans of 1972–2000 and 2000–2015 are quantified using digital elevation models reconstructed from topographic maps, SRTM X-band radar data and ASTER images. The results exhibit significant glacier mass loss in the Karlik Range for the two time spans, with a mean mass loss of −0.19 ± 0.08 m w.e. a−1 for the 1972–2000 period and −0.45 ± 0.17 m w.e. a−1 for the 2000–2015 period. The doubling of mass loss over the latter period suggests an acceleration of glacier mass loss in the early 21st century. The accelerated mass loss is associated with regional warming whereas the decline in annual precipitation is not significant.

中文翻译：

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1972-2000 年和 2000-2015 年期间，天山最东端的卡利克山脉的冰川质量损失翻了一番

尽管有许多研究报告了天山东部冰川范围的变化及其对气候变化的响应，但几十年来冰川质量平衡的变化仍未得到很好的重建。在这里，使用从地形图、SRTM X 波段雷达数据和 ASTER 图像重建的数字高程模型来量化 1972-2000 年和 2000-2015 年期间天山最东端 Karlik 山脉的冰川质量预算。结果显示，在两个时间跨度内，卡利克山脉的冰川质量损失显着，平均质量损失为 -0.19 ± 0.08 m。-1对于 1972-2000 年期间和 -0.45 ± 0.17 m-12000-2015 年期间。后期质量损失翻倍表明 21 世纪初冰川质量损失加速。加速的质量损失与区域变暖有关，而年降水量的下降并不显着。