气候变化领域集成服务门户(CCPortal): Characteristics of 3-Dimensional Structure and Heat Budget of Mesoscale Eddies in the South Atlantic Ocean

CCPortal

DOI	10.1029/2020JC016922
	Characteristics of 3-Dimensional Structure and Heat Budget of Mesoscale Eddies in the South Atlantic Ocean
	Wang X.; Zhang S.; Lin X.; Qiu B.; Yu L.
发表日期	2021
ISSN	21699275
卷号	126 期号:5
英文摘要	Mesoscale eddies redistribute heat, salt, and nutrients in oceans. The South Atlantic Ocean (SA) is a basin that has active mesoscale eddies for which characteristics of the three-dimensional structure and its leading mechanism are complex but have yet been studied sufficiently. Here based on ocean reanalysis datasets we use a composite analysis approach to analyze the mixed layer anomalous heat budget and find distinct two types of spatial patterns: dipole and monopole – mainly present in the northern and southern regions of the SA, respectively. The dipole can be attributed to ocean horizontal advection, especially to the combined effect of eddy anomalous meridional current and meridional gradient of mean temperature. The monopole, on the other hand, is associated with complex contributions, for which zonal and meridional advections play opposite roles as cooling or heating around the eddies. At the eddy center, the vertical advection is non-negligible, especially the mean upwelling and vertical temperature gradient playing a vital role in the formation of a monopole. The analysis of eddy meridional heat transport shows that the stirring component is dominant, and poleward in most areas, especially at high latitudes. Such analysis on the leading mechanism of eddy-induced temperature anomaly could help improve our understanding on meso- and small-scale air-sea interactions and eddy-induced heat transport in the SA. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	composite three-dimensional structure; eddy heat transport; mesoscale eddies; mixed layer heat budget; South Atlantic Ocean
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186307
作者单位	Key Laboratory of Physical Oceanography, Ministry of Education/Institute for Advanced Ocean Study/Frontiers Science Center for Deep Ocean Multispheres and Earth System (DOMES), Ocean University of China, Qingdao, China; The College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, China; Pilot National Laboratory for Marine Science and Technology (QNLM), Qingdao, China; International Laboratory for High-Resolution Earth System Model and Prediction (iHESP), Qingdao, China; Department of Oceanography, University of Hawaii at Manoa, Honolulu, HI, United States; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
推荐引用方式 GB/T 7714	Wang X.,Zhang S.,Lin X.,et al. Characteristics of 3-Dimensional Structure and Heat Budget of Mesoscale Eddies in the South Atlantic Ocean[J],2021,126(5).
APA	Wang X.,Zhang S.,Lin X.,Qiu B.,&Yu L..(2021).Characteristics of 3-Dimensional Structure and Heat Budget of Mesoscale Eddies in the South Atlantic Ocean.Journal of Geophysical Research: Oceans,126(5).
MLA	Wang X.,et al."Characteristics of 3-Dimensional Structure and Heat Budget of Mesoscale Eddies in the South Atlantic Ocean".Journal of Geophysical Research: Oceans 126.5(2021).