气候变化领域集成服务门户(CCPortal): Variability of the Sub-Antarctic Mode Water Subduction Rate During the Argo Period

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DOI	10.1029/2020GL088248
	Variability of the Sub-Antarctic Mode Water Subduction Rate During the Argo Period
	Qu T.; Gao S.; Fine R.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	Both a quasi-biennial variability and an overall linearly increasing trend are identified in the Sub-Antarctic Mode Water (SAMW) subduction rate across the Southern Hemisphere ocean, using the Argo data during 2005–2019. The quasi-biennial variability is mainly due to variability of the mixed layer depth. Variability of wind stress curl in the SAMW formation regions associated with the Southern Annular Mode plays a critical role in generating the quasi-biennial variability of the mixed layer depth and consequently the SAMW subduction rates. The SAMW subduction rate across the Southern Hemisphere ocean, long-term mean totaling 56 Sv, has increased at 0.73 ± 0.65 Sv year−1 over the past 15 years. The increase has directly contributed to the observed increase in the total SAMW volume. Much of this increasing trend can be explained by the deepening mixed layers, which in turn are primarily forced by the strengthening westerly winds under an increasing Southern Annular Mode. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Geophysics; Mixed layer; Mixed layer depths; Southern Annular Mode; Southern Hemisphere; Subduction rates; Westerly winds; Wind stress curl; Earth sciences; global ocean; mixed layer; mode water; satellite data; Southern Hemisphere; subantarctic region; subduction; westerly; wind stress
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/170156
作者单位	Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, United States; Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; Laboratory for Ocean Dynamics and Climate, Pilot National Laboratory for Marine Science and Technology, Qingdao, China; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States
推荐引用方式 GB/T 7714	Qu T.,Gao S.,Fine R.A.. Variability of the Sub-Antarctic Mode Water Subduction Rate During the Argo Period[J],2020,47(13).
APA	Qu T.,Gao S.,&Fine R.A..(2020).Variability of the Sub-Antarctic Mode Water Subduction Rate During the Argo Period.Geophysical Research Letters,47(13).
MLA	Qu T.,et al."Variability of the Sub-Antarctic Mode Water Subduction Rate During the Argo Period".Geophysical Research Letters 47.13(2020).