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

文献类型：期刊论文

作者Zhao, He1,2,7; Wu, Tongwen7; Li, Laurent Z. X.6; Wu, Fanghua7; Jie, Weihua7; Liu, Xiangwen7; Zhang, Ronghua3,4,5; Xie, Chengjun1,2,7
刊名JOURNAL OF METEOROLOGICAL RESEARCH
出版日期2022-04-01
卷号36期号:2页码:360-373
ISSN号2095-6037
关键词heat budget lateral heat transport surface heat flux Nino3.4 region El Nino-Southern Oscillation (EN-SO)
DOI10.1007/s13351-022-1175-6
通讯作者Wu, Tongwen(twwu@cma.gov.cn)
英文摘要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.
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
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000791791800011
源URL[http://ir.qdio.ac.cn/handle/337002/178981]  
专题海洋研究所_海洋环流与波动重点实验室
通讯作者Wu, Tongwen
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.China Meteorol Adm, Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
6.Sorbonne Univ, Ctr Natl Rech Sci, Lab Meteorol Dynam, Ecole Polytech,Ecole Normale Super, F-75252 Paris, France
7.China Meteorol Adm, Beijing Climate Ctr, Beijing 100081, 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.

入库方式： OAI收割

来源：海洋研究所

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