气候变化领域集成服务门户(CCPortal): Recent upper Arctic Ocean warming expedited by summertime atmospheric processes

CCPortal

DOI	10.1038/s41467-022-28047-8
	Recent upper Arctic Ocean warming expedited by summertime atmospheric processes
	Li Z.; Ding Q.; Steele M.; Schweiger A.
发表日期	2022
ISSN	2041-1723
卷号	13 期号:1
英文摘要	The observed upper (0–50 m) Arctic Ocean warming since 1979 has been primarily attributed to anthropogenically driven changes in the high latitudes. Here, using both observational and modeling analyses, we demonstrate that a multiyear trend in the summertime large-scale atmospheric circulation, which we ascribe to internal variability, has played an important role in upper ocean warming in summer and fall over the past four decades due to sea ice-albedo effect induced by atmospheric dynamics. Nudging experiments in which the wind fields are constrained toward the observed state support this mechanism and suggest that the internal variability contribution to recent upper Arctic Ocean warming accounts for up to one quarter of warming over the past four decades and up to 60% of warming from 2000 to 2018. This suggests that climate models need to replicate this important internal process in order to realistically simulate Arctic Ocean temperature variability and trends. © 2022, The Author(s).
语种	英语
scopus关键词	albedo; atmospheric circulation; human activity; sea ice; summer; upper ocean; warming; wind field; Arctic Ocean; article; climate; sea ice; summer; warming; climate model; Arctic Ocean
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/250534
作者单位	Department of Geography, and Earth Research Institute, University of California, Santa Barbara, Santa Barbara, CA, United States; Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	Li Z.,Ding Q.,Steele M.,et al. Recent upper Arctic Ocean warming expedited by summertime atmospheric processes[J],2022,13(1).
APA	Li Z.,Ding Q.,Steele M.,&Schweiger A..(2022).Recent upper Arctic Ocean warming expedited by summertime atmospheric processes.Nature Communications,13(1).
MLA	Li Z.,et al."Recent upper Arctic Ocean warming expedited by summertime atmospheric processes".Nature Communications 13.1(2022).