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首页> 外文期刊>Environmental Monitoring and Assessment >Satellite-observed glacier recession in the Kashmir Himalaya, India, from 1980 to 2018
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Satellite-observed glacier recession in the Kashmir Himalaya, India, from 1980 to 2018

机译：卫星观察到的冰川衰退在印度克什米尔喜马拉雅，1980年至2018年

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The study, first of its kind in the Kashmir Valley, uses a time series of satellite data (1980-2018) to determine the glacier health, which is critical for sustaining the perenniality of the rivers originating from the area. The role of topography, morphology and climate on the observed glacier recession was investigated. In total, 147 glaciers were mapped from 1980 image; similar to 72% of the glaciers have area = 3 km(2) and a majority of them (123) are having size 1 km(2). The glaciers have reduced from 101.73 +/- 16.79 km(2) in 1980 to 72.41 +/- 4.7 km(2) in 2018 showing a recession of 29.32 +/- 12.09 km(2) during the period (28.82%). The observed glacier loss is higher (0.77 +/- 0.31 km(2)a(-1)) compared with the other Himalayan regions. The results indicated that there is strong influence of altitude, aspect, slope and climate on glacier recession. The glaciers with area = 1 km(2) have receded significantly more (41.20 +/- 6.20%) than the larger glaciers 3 km(2) in area (15.97 +/- 5.13%). The glaciers situated between 4200 and 4400 m altitudes have receded more (similar to 55 +/- 5.01%) than those situated at altitudes 4800 m (similar to 19 +/- 6.9%). Furthermore, the glaciers with steep slope ( 25) have witnessed lower recession (0.25 +/- 0.15 km(2)a(-1)) compared to the glaciers with gentle slope (0.51 +/- 0.22 km(2)a(-1)). The south-facing glaciers showed higher recession (similar to 38%) compared with the north-facing glaciers (similar to 27%). The findings suggest that the increase in temperature and decline in winter solid precipitation have resulted in the glacier recession with the consequent depletion of the stream flows, which, if continued in the future, would adversely affect the economy in the region.
机译：该研究首先在Kashmir Valley中使用了一系列的卫星数据（1980-2018）来确定冰川健康，这对于维持来自该地区的河流的常年性至关重要。调查了地形，形态和气候对观察到的冰川经济衰退的作用。共有147名冰川从1980年映射;类似于72％的冰川具有面积<= 3km（2），其中大部分（123）具有尺寸<1 km（2）。冰川在1980年的101.73 +/- 16.79公里下降至72.41 +/- 4.7 km（2）在2018年，在此期间显示了29.32 +/- 12.09公里（2）的衰退（28.82％）。与其他喜马拉雅地区相比，观察到的冰川损失较高（0.77 +/- 0.31km（2）A（-1））。结果表明，海拔，方面，坡度和气候对冰川经济衰退产生了强烈影响。面积<= 1公里（2）的冰川比较大的冰川在面积较大的冰川（41.20 +/- 6.20％），面积3公里（15.97 +/- 5.13％）。位于4200和4400米高度之间的冰川已经取得更多（类似于55 +/- 5.01％），而不是位于海拔4800米（类似于19 +/- 6.9％）。此外，与具有轻柔斜坡的冰川相比，具有陡坡（> 25）的冰川（> 25）的衰退（0.25 +/- 0.15 km（2）（-1））（0.51 +/- 0.22 km（2）A（ -1））。与朝鲜冰川相比，面向朝南的冰川显示出更高的衰退（类似于38％）（类似于27％）。研究结果表明，冬季固体沉淀的温度和下降的增加导致冰川衰退与随后的流流量的耗尽，如果未来继续，这将对该地区的经济产生不利影响。

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