Winter accumulation drives the spatial variations in glacier mass balance in High Mountain Asia  

冬季积累导致高亚洲冰川物质平衡空间差异

作　　者：Lei Huang Regine Hock Xin Li Tobias Bolch Kun Yang Ninglian Wang Tandong Yao Jianmin Zhou Changyong Dou Zhen Li 黄磊;Regine Hock;李新;Tobias Bolch;阳坤;王宁练;姚檀栋;周建民;窦长勇;李震(International Research Center of Big Data for Sustainable Development Goals,Beijing 100094,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;Department of Geosciences,Oslo University,Oslo 0316,Norway;Geophysical Institute,University of Alaska,Fairbanks 99775-7320,USA;Institute of Tibeten Plateau Research,Chinese Academy of Sciences,Beijing 100101,China;State Key Laboratory of Tibetan Plateau Earth System,Environment and Resources(TPESER),Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China;School of Geography&Sustainable Development,University of St Andrews,St Andrews KY169AL,Scotland,UK;Department of Earth System Science,Tsinghua University,Beijing 100084,China;College of Urban and Environment Sciences,Northwest University,Xi’an 710127,China)

机构地区：[1]International Research Center of Big Data for Sustainable Development Goals,Beijing 100094,China [2]Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China [3]Department of Geosciences,Oslo University,Oslo 0316,Norway [4]Geophysical Institute,University of Alaska,Fairbanks 99775-7320,USA [5]Institute of Tibeten Plateau Research,Chinese Academy of Sciences,Beijing 100101,China [6]State Key Laboratory of Tibetan Plateau Earth System,Environment and Resources(TPESER),Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China [7]School of Geography&Sustainable Development,University of St Andrews,St Andrews KY169AL,Scotland,UK [8]Department of Earth System Science,Tsinghua University,Beijing 100084,China [9]College of Urban and Environment Sciences,Northwest University,Xi’an 710127,China

出　　处：《Science Bulletin》2022年第19期1967-1970,共4页科学通报（英文版）

基　　金：supported by the National Key Research and Development Program of China(2018YFA0605403);the National Natural Science Foundation of China(41971393);the Strategic Priority Research Program of Chinese Academy of Sciences(XDA20100300);the ESA-MOST(European Space Agency-Ministry of Science and Technology of China)Dragon 5 Programme(4000136930/22/I-NB)。

摘　　要：High Mountain Asia has the largest volume of glacier ice outside the polar regions[1]and is considered the water tower of Asia[2].These glaciers provide drinking and irrigation water for millions of people as well as ecosystems in and beyond the mountain ranges,and are especially important in drought-affected regions[3,4].高亚洲山地冰川变化影响着周边数亿人的水源供给.以往研究表明,高亚洲各个地区冰川物质平衡存在较大的空间差异,但这种差异的原因尚不明确.本文提出了一种基于雷达卫星冰川积雪观测的新指数,以区分高亚洲地区冬季积累型和夏季积累型冰川.结合物质平衡数据进一步研究发现,夏季积累型冰川消融速度是冬季积累型冰川的4倍(2000~2018年间消融速度分别为-0.43±0.12 m w.e/a和-0.10±0.06 m w.e/a).研究结果表明了季节性积累对冰川物质平衡的重要性,强调了准确的降水观测对该地区未来冰川变化估算至关重要.

关 键 词：水源供给 冰川消融 雷达卫星 山地冰川 降水观测 冰川变化 差异的原因 空间差异 

分 类 号：P343.6[天文地球—水文科学]