气候变化领域集成服务门户(CCPortal): Ocean warming and accelerating Southern Ocean zonal flow

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DOI	10.1038/s41558-021-01212-5
	Ocean warming and accelerating Southern Ocean zonal flow
	Shi J.-R.; Talley L.D.; Xie S.-P.; Peng Q.; Liu W.
发表日期	2021
ISSN	1758678X
起始页码	1090
结束页码	1097
卷号	11 期号:12
英文摘要	The Southern Ocean (>30° S) has taken up a large amount of anthropogenic heat north of the Subantarctic Front (SAF) of the Antarctic Circumpolar Current (ACC). Poor sampling before the 1990s and decadal variability have heretofore masked the ocean’s dynamic response to this warming. Here we use the lengthening satellite altimetry and Argo float records to show robust acceleration of zonally averaged Southern Ocean zonal flow at 48° S–58° S. This acceleration is reproduced in a hierarchy of climate models, including an ocean-eddy-resolving model. Anthropogenic ocean warming is the dominant driver, as large (small) heat gain in the downwelling (upwelling) regime north (south) of the SAF causes zonal acceleration on the northern flank of the ACC and adjacent subtropics due to increased baroclinicity; strengthened wind stress is of secondary importance. In Drake Passage, little warming occurs and the SAF velocity remains largely unchanged. Continued ocean warming could further accelerate Southern Ocean zonal flow. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	air-sea interaction; Argo; climate modeling; downwelling; dynamic response; satellite altimetry; wind stress; zonal flow; Antarctic Circumpolar Current; Drake Passage; Southern Ocean; Southern Ocean
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245463
作者单位	Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Department of Earth and Planetary Sciences, University of California Riverside, Riverside, CA, United States
推荐引用方式 GB/T 7714	Shi J.-R.,Talley L.D.,Xie S.-P.,et al. Ocean warming and accelerating Southern Ocean zonal flow[J],2021,11(12).
APA	Shi J.-R.,Talley L.D.,Xie S.-P.,Peng Q.,&Liu W..(2021).Ocean warming and accelerating Southern Ocean zonal flow.Nature Climate Change,11(12).
MLA	Shi J.-R.,et al."Ocean warming and accelerating Southern Ocean zonal flow".Nature Climate Change 11.12(2021).