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首页> 外文期刊>Arctic, antarctic, and alpine research >Glacier variations in response to climate change in the eastern Nyainqêntanglha Range, Tibetan Plateau from 1999 to 2015
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Glacier variations in response to climate change in the eastern Nyainqêntanglha Range, Tibetan Plateau from 1999 to 2015

机译:1999年至2015年青藏高原Nyainqêntanglha山脉冰川对气候变化的响应

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Changes in glaciers in response to climate change in the eastern Nyainqêntanglha Range were studied using Landsat TM/ETM+/OLI. The entire mountain range contained approximately 6,426 glaciers, covering an area of 6508.03 ± 252.02 km~(2) in 1999. The glaciers shrank from 1999 to 2015 and the total ice cover was reduced by 1285.99 ± 6.01 km~(2), accounting for 19.76 ± 3.78% of the glacierized area in 1999. The mean loss of glacier area was 1.24%?a~(?1) during 1999–2015. The analysis of meteorological data showed a remarkable pattern in mean annual air temperature (especially after 1998), whereas the annual precipitation displayed a stable pattern from 1989 to 2011. The glacier shrinkage in the region can probably be attributed to the increase in air temperature. The largest glaciers in the area show a maximum elevation of about 5,200–5,400 m a.s.l. in 1990, 2013, and 2015. The altitude of glaciers varied from 4,000 m a.s.l. to 6,000 m a.s.l. and the majority of the glaciers were distributed between 4,800 m and 5,800 m. All glaciers, regardless of their orientation, have shrunk, but glaciers mainly south-facing retreated faster than those facing others directions.
机译:使用Landsat TM / ETM + / OLI研究了Nyainqêntanglha山脉东部响应气候变化的冰川变化。整个山脉包含约6,426个冰川,1999年的面积为6508.03±252.02 km〜(2)。从1999年到2015年,冰川收缩,总冰盖减少了1285.99±6.01 km〜(2)。 1999年,冰川面积的19.76±3.78%。1999-2015年,冰川面积的平均损失为1.24%?a〜(?1)。气象数据分析显示,年平均气温(尤其是1998年以后)呈显着格局,而1989年至2011年的年降水呈稳定态势。该地区的冰川萎缩可能归因于气温的升高。该地区最大的冰川最大海拔高度约为5,200-5,400 m.s.l.。在1990年,2013年和2015年,冰川的高度从4,000 m a.s.l.至6,000 m.s.l.大部分冰川分布在4,800 m至5,800 m之间。所有冰川,无论其方向如何,均已缩小,但主要朝南的冰川的退缩速度要快于朝向其他方向的冰川。

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