Decadal Thermal Variability of the Upper Southern Ocean: Zonal Asymmetry

doi:10.1175/JCLI-D-23-0649.1

IOCAS-IR > 海洋环流与波动重点实验室

	Decadal Thermal Variability of the Upper Southern Ocean: Zonal Asymmetry
	Song, Yuanyuan 1; Li, Yuanlong 1,2; Hu, Aixue 3; Cheng, Lijing 4; Forget, Gael 5; Chen, Xiaodan 6; Duan, Jing 1,2; Wang, Fan1,2
	2024-06-01
发表期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
卷号	37 期号:11 页码:3117-3132
通讯作者	Li, Yuanlong(liyuanlong@qdio.ac.cn)
摘要	As the major sink of anthropogenic heat, the Southern Ocean has shown quasi -symmetric, deep -reaching warming since the mid -twentieth century. In comparison, the shorter -term heat storage pattern of the Southern Ocean is more complex and has notable impacts on regional climate and marine ecosystems. By analyzing observational datasets and climate model simulations, this study reveals that the Southern Ocean exhibits prominent decadal ( . 8 years) variability extending to ; 700-m depth and is characterized by out -of -phase changes in the Paci fi c and Atlantic - Indian Ocean sectors. Changes in the Paci fi c sector are larger in magnitude than those in the Atlantic - Indian Ocean sectors and dominate the total heat storage of the Southern Ocean on decadal time scales. Instead of heat uptake through surface heat fl uxes, these asymmetric variations arise primarily from wind -driven heat redistribution. Pacemaker and preindustrial simulations of the Community Earth System Model version 1 (CESM1) suggest that these variations in Southern Ocean winds arise primarily from natural variability of the tropical Paci fi c, as represented by the interdecadal Paci fi c oscillation (IPO). Through atmospheric teleconnection, the positive phase of the IPO gives rise to higher -than -normal sea level pressure and anticyclonic wind anomalies in the 50 degrees - 70 degrees S band of the Paci fi c sector. These winds lead to warming of 0 - 700 m by driving the convergence of warm water. The opposite processes, involving cyclonic winds and upper -layer divergence, occur in the Atlantic - Indian Ocean sector. These fi ndings aid our understanding of the time -varying heat storage of the Southern Ocean and provide useful implications on initialized decadal climate prediction.
关键词	Southern Ocean Asymmetry Wind stress Paci fi c decadal oscillation Atmosphere - ocean interaction Interdecadal variability
DOI	10.1175/JCLI-D-23-0649.1
收录类别	SCI
语种	英语
资助项目	Laoshan Laboratory[IA 1947282] ; National Natural Science Foundation of China[42376031] ; National Natural Science Foundation of China[LSKJ202202601] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; Oceanographic Data Center, IOCAS ; Natural Science Foundation of Shandong Province[ZR2023QD127] ; Qingdao Postdoctoral Science Foundation[QDBSH20220202153] ; Regional and Global Model Analysis (RGMA) component of the Earth and Environmental System Modeling Program of the U.S. Department of Energy's Office of Biological and Environmental Research (BER) via National Science Foundation[1852977] ; National Science Foundation (NSF) of the United States[42176007] ; National Aeronautics and Space Administration Awards[LSKJ202202601] ; National Aeronautics and Space Administration Awards[80NSSC23K0355] ; National Aeronautics and Space Administration Awards[80NSSC22K1697] ; National Aeronautics and Space Administration Awards[1676067] ; National Aeronautics and Space Administration Awards[1686358] ; [DE-SC0022070]
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001229125000001
出版者	AMER METEOROLOGICAL SOC
WOS关键词	ANTARCTIC CIRCUMPOLAR CURRENT ; SEA-ICE ; HEAT UPTAKE ; CLIMATE ; TEMPERATURE ; CIRCULATION ; PENINSULA ; TRENDS ; DRIVEN ; TRANSPORT
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/185871
专题	海洋环流与波动重点实验室
通讯作者	Li, Yuanlong
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Laoshan Lab, Qingdao, Peoples R China 3.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, Boulder, CO USA 4.Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing, Peoples R China 5.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA 6.Fudan Univ, Inst Atmospher Sci, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Song, Yuanyuan,Li, Yuanlong,Hu, Aixue,et al. Decadal Thermal Variability of the Upper Southern Ocean: Zonal Asymmetry[J]. JOURNAL OF CLIMATE,2024,37(11):3117-3132.
APA	Song, Yuanyuan.,Li, Yuanlong.,Hu, Aixue.,Cheng, Lijing.,Forget, Gael.,...&Wang, Fan.(2024).Decadal Thermal Variability of the Upper Southern Ocean: Zonal Asymmetry.JOURNAL OF CLIMATE,37(11),3117-3132.
MLA	Song, Yuanyuan,et al."Decadal Thermal Variability of the Upper Southern Ocean: Zonal Asymmetry".JOURNAL OF CLIMATE 37.11(2024):3117-3132.