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首页> 外文期刊>Journal of Asian earth sciences >Current glacier status and ELA changes since the Late Pleistocene in the Hindu Kush Mountains of Afghanistan
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Current glacier status and ELA changes since the Late Pleistocene in the Hindu Kush Mountains of Afghanistan

机译：自阿富汗印度什耳山脉后期更优秀的冰川地位和ELA变化

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The glacier cover of the Hindu Kush Mountains of Afghanistan provides a natural laboratory to assess the impact of climate change on the cryosphere. However, to date, not much is known about how the cryosphere in these mountainous regions is responding to climate change. Therefore, using an integrated approach including geo-spatial technology, climate data, a mass balance study, as well as topographic analysis, we present the first systematic study of glacier fluctuations in the Kokcha sub-basin of the Afghanistan Range for the last 25 years (1990 to 2015). The glacier cover and the number of glaciers in the basin have reduced from 576 km(2) and 1007 in 1990 to 492 km(2) and 998 in 2015 respectively, losing similar to 84 km(2) (similar to 15%) of the total glaciated area. Besides the mass loss of the glaciers ranges from -0.65 m water equivalent per year and -0.02 m water equivalent per year with an average of -0.20 m water equivalent per year as estimated by the geodetic method. The equilibrium line altitude changes since the Late Pleistocene to the present vary from 810 +/- 145 m to 1060 +/- 145 m with an average of 722 +/- 145 m. The increasing trend of temperature and shifting precipitation seasons have resulted in enhanced glacier recession and the formation of numerous glacial lakes in the basin. In addition to the climatic variables and glacier size, the topographic parameters slope, and elevation are observed to be the dominant factors influencing glacier recession and mass changes in the basin.
机译：阿富汗印度教古山山脉的冰川封面提供了自然实验室，以评估气候变化对冰区的影响。然而，迄今为止，关于这些山区地区的冰区如何应对气候变化，并不多。因此，使用包括地球空间技术，气候数据，大规模平衡研究以及地形分析的综合方法，我们在过去25年中，展示了阿富汗范围的Kokcha子盆地的冰川波动的第一个系统研究（1990年至2015年）。冰川覆盖物和盆地中的冰川人数分别从1990年的576公里（2）和1007年减少到2015年492公里（2）和998，失去类似于84公里（2）（类似于15％）总冰川区域。除了冰川的质量损失范围为-0.65米的每年等量，每年均等于-0.02米的水平，平均每年平均达到-0.20米，每年估计的大地测量方法估计。均衡线高度变化，因为晚期优质烯至目前的改变在810 +/-145米至1060 +/-145米，平均为722 +/- 145米。温度和变化沉淀季节的趋势越来越大导致了冰川衰退增强，并在盆地中形成了许多冰川湖泊。除了气候变量和冰川尺寸之外，图解参数坡度和高度而言是观察到影响冰川经济衰退和盆地的质量变化的主导因素。

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