Upper-Ocean Lateral Heat Transports in the Nino3.4 Region and Their Connection with ENSO

doi:10.1007/s13351-022-1175-6

IOCAS-IR > 海洋环流与波动重点实验室

	Upper-Ocean Lateral Heat Transports in the Nino3.4 Region and Their Connection with ENSO
	Zhao, He 1,2,3; Wu, Tongwen 3; Li, Laurent Z. X.4; Wu, Fanghua 3; Jie, Weihua 3; Liu, Xiangwen 3; Zhang, Ronghua5,6,7 ; Xie, Chengjun 1,2,3
	2022-04-01
发表期刊	JOURNAL OF METEOROLOGICAL RESEARCH
ISSN	2095-6037
卷号	36 期号:2 页码:360-373
通讯作者	Wu, Tongwen([email protected])
摘要	In the Nino3.4 region (tropical Pacific, 5 degrees S-5 degrees N, 170 degrees-120 degrees W), sea surface temperature (SST) changes are highly correlated with temperature variations in the upper 40-m layer. This study explores the upper-ocean heat budget in the Nino3.4 region using Ocean Reanalysis System 5 (ORAS5) monthly data from 1979 to 2018, with a focus on ocean heat transports at lateral boundaries in the top 40-m layer and their correlation with temperature variations. In the region, there is a well-defined structure of opposite meridional circulation in the upper and lower parts of the thermocline, characterized by divergence in the upper layer above 40 m and convergence in the lower layer. The change of mean temperature in the upper layer is determined by the sum of zonal, meridional, and vertical heat transports, which, however, tend to largely compensate for each other. In general, part of the surface heat flux from the atmosphere to the ocean and the heat transport from the subsurface ocean are transported out of the domain by meridional and zonal currents, leaving only a tiny part to warm or cool the upper ocean. The amplitude of the net surface heat flux effective for the entire 40-m layer of the ocean is weaker than the lateral heat transport. On an interannual timescale, variations of heat transports in both zonal and meridional are positively correlated with temperature anomalies, while the vertical heat transport from the subsurface ocean is negatively correlated. Composite analyses for five El Nino events and five La Nina events also revealed that there is a positive contribution of horizontal transport convergence to temperature anomalies during the evolution of El Nino (warming) and La Nina (cooling), while vertical transport acts against temperature variations.
关键词	heat budget lateral heat transport surface heat flux Nino3.4 region El Nino-Southern Oscillation (EN-SO)
DOI	10.1007/s13351-022-1175-6
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFA0602100]; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 40000000]; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 42000000]; Strategic Priority Research Program of Chinese Academy of Sciences[XDA19060102]; National Natural Science Foundation of China[42030410]; National Natural Science Foundation of China[41690122]; National Natural Science Foundation of China[41690120]
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000791791800011
出版者	SPRINGER HEIDELBERG
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/178982
专题	海洋环流与波动重点实验室
通讯作者	Wu, Tongwen
作者单位	1.China Meteorol Adm, Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.China Meteorol Adm, Beijing Climate Ctr, Beijing 100081, Peoples R China 4.Sorbonne Univ, Ctr Natl Rech Sci, Lab Meteorol Dynam, Ecole Polytech,Ecole Normale Super, F-75252 Paris, France 5.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 6.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 7.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Zhao, He,Wu, Tongwen,Li, Laurent Z. X.,et al. Upper-Ocean Lateral Heat Transports in the Nino3.4 Region and Their Connection with ENSO[J]. JOURNAL OF METEOROLOGICAL RESEARCH,2022,36(2):360-373.
APA	Zhao, He.,Wu, Tongwen.,Li, Laurent Z. X..,Wu, Fanghua.,Jie, Weihua.,...&Xie, Chengjun.(2022).Upper-Ocean Lateral Heat Transports in the Nino3.4 Region and Their Connection with ENSO.JOURNAL OF METEOROLOGICAL RESEARCH,36(2),360-373.
MLA	Zhao, He,et al."Upper-Ocean Lateral Heat Transports in the Nino3.4 Region and Their Connection with ENSO".JOURNAL OF METEOROLOGICAL RESEARCH 36.2(2022):360-373.

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