气候变化领域集成服务门户(CCPortal): Health and sustainability of glaciers in High Mountain Asia

CCPortal

DOI	10.1038/s41467-021-23073-4
	Health and sustainability of glaciers in High Mountain Asia
	Miles E.; McCarthy M.; Dehecq A.; Kneib M.; Fugger S.; Pellicciotti F.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Glaciers in High Mountain Asia generate meltwater that supports the water needs of 250 million people, but current knowledge of annual accumulation and ablation is limited to sparse field measurements biased in location and glacier size. Here, we present altitudinally-resolved specific mass balances (surface, internal, and basal combined) for 5527 glaciers in High Mountain Asia for 2000–2016, derived by correcting observed glacier thinning patterns for mass redistribution due to ice flow. We find that 41% of glaciers accumulated mass over less than 20% of their area, and only 60% ± 10% of regional annual ablation was compensated by accumulation. Even without 21st century warming, 21% ± 1% of ice volume will be lost by 2100 due to current climatic-geometric imbalance, representing a reduction in glacier ablation into rivers of 28% ± 1%. The ablation of glaciers in the Himalayas and Tien Shan was mostly unsustainable and ice volume in these regions will reduce by at least 30% by 2100. The most important and vulnerable glacier-fed river basins (Amu Darya, Indus, Syr Darya, Tarim Interior) were supplied with >50% sustainable glacier ablation but will see long-term reductions in ice mass and glacier meltwater supply regardless of the Karakoram Anomaly. © 2021, The Author(s).
语种	英语
scopus关键词	ablation; glacier; long-term change; mass balance; meltwater; river basin; sustainability; vulnerability; article; Asia; glacier; human; river basin; warming; Himalayas; Sirdaryo; Tien Shan; Uzbekistan
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250694
作者单位	Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland; British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom; Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland; Institute of Environmental Engineering, ETH Zurich, Zurich, Switzerland; Department of Geography, Northumbria University, Newcastle, United Kingdom
推荐引用方式 GB/T 7714	Miles E.,McCarthy M.,Dehecq A.,et al. Health and sustainability of glaciers in High Mountain Asia[J],2021,12(1).
APA	Miles E.,McCarthy M.,Dehecq A.,Kneib M.,Fugger S.,&Pellicciotti F..(2021).Health and sustainability of glaciers in High Mountain Asia.Nature Communications,12(1).
MLA	Miles E.,et al."Health and sustainability of glaciers in High Mountain Asia".Nature Communications 12.1(2021).