气候变化领域集成服务门户(CCPortal): Ice velocity and thickness of the world’s glaciers

CCPortal

DOI	10.1038/s41561-021-00885-z
	Ice velocity and thickness of the world’s glaciers
	Millan R.; Mouginot J.; Rabatel A.; Morlighem M.
发表日期	2022
ISSN	1752-0894
英文摘要	The effect of climate change on water resources and sea-level rise is largely determined by the size of the ice reservoirs around the world and the ice thickness distribution, which remains uncertain. Here, we present a comprehensive high-resolution mapping of ice motion for 98% of the world’s total glacier area during the period 2017–2018. We use this mapping of glacier flow to generate an estimate of global ice volume that reconciles ice thickness distribution with glacier dynamics and surface topography. The results suggest that the world’s glaciers have a potential contribution to sea-level rise of 257 ± 85 mm, which is 20% less than previously estimated. At low latitudes, our findings highlight notable changes in freshwater resources, with 37% more ice in the Himalayas and 27% less ice in the tropical Andes of South America, affecting water availability for local populations. This mapping of glacier flow and thickness redefines our understanding of global ice-volume distribution and has implications for the prediction of glacier evolution around the world, since accurate representations of glacier geometry and dynamics are of prime importance to glacier modelling. © 2022, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250800
作者单位	Université Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, France; Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen K, Denmark; Department of Earth System Science, University of California Irvine, Irvine, CA, United States; Department of Earth Sciences, Dartmouth College, Hanover, NH, United States
推荐引用方式 GB/T 7714	Millan R.,Mouginot J.,Rabatel A.,等. Ice velocity and thickness of the world’s glaciers[J],2022.
APA	Millan R.,Mouginot J.,Rabatel A.,&Morlighem M..(2022).Ice velocity and thickness of the world’s glaciers.Nature Geoscience.
MLA	Millan R.,et al."Ice velocity and thickness of the world’s glaciers".Nature Geoscience (2022).