气候变化领域集成服务门户(CCPortal): Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends

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DOI	10.1029/2019GL086892
	Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends
	Rye C.D.; Marshall J.; Kelley M.; Russell G.; Nazarenko L.S.; Kostov Y.; Schmidt G.A.; Hansen J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	Recent trends in Southern Ocean (SO) climate—of surface cooling, freshening, and sea ice expansion—are not captured in historical climate simulations. Here we demonstrate that the addition of a plausible increase in Antarctic meltwater to a coupled climate model can produce a closer match to a wide range of climate trends. We use an ensemble of simulations of the Goddard Institute for Space Studies Earth system model to compute “climate response functions” (CRFs) for the addition of meltwater. These imply a cooling and freshening of the SO, an expansion of sea ice, and an increase in steric height, all consistent with observations since 1992. The CRF framework allows one to compare the efficacy of Antarctic meltwater as a driver of SO climate trends, relative to greenhouse gas and surface wind forcing. The meltwater CRFs presented here strongly suggest that interactive Antarctic ice melt should be included in climate models. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth (planet); Expansion; Greenhouse gases; Sea ice; Climate response; Climate simulation; Climate trends; Coupled climate model; Earth system model; Ice expansions; Southern ocean; Surface cooling; Climate models; climate modeling; cooling; greenhouse gas; meltwater; sea ice; simulation; trend analysis; wind forcing; Southern Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170312
作者单位	Center for Climate Systems Research, Columbia University, New York City, NY, United States; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States; Goddard Institute for Space Studies (NASA), New York City, NY, United States; Atmospheric and Ocean Sciences, University of Exeter, Exeter, United Kingdom
推荐引用方式 GB/T 7714	Rye C.D.,Marshall J.,Kelley M.,et al. Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends[J],2020,47(11).
APA	Rye C.D..,Marshall J..,Kelley M..,Russell G..,Nazarenko L.S..,...&Hansen J..(2020).Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends.Geophysical Research Letters,47(11).
MLA	Rye C.D.,et al."Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends".Geophysical Research Letters 47.11(2020).