Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean
Author Posting. © American Geophysical Union, 2021. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 126(5), (2021): e2020JC016922, https://doi.org/10.1029...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/27754 2023-05-15T18:20:51+02:00 Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean Wang, Xue Zhang, Shaoqing Lin, Xiaopei Qiu, Bo Yu, Lisan 2021-04-26 https://hdl.handle.net/1912/27754 unknown American Geophysical Union https://doi.org/10.1029/2020JC016922 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), e2020JC016922. https://hdl.handle.net/1912/27754 doi:10.1029/2020JC016922 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), e2020JC016922. doi:10.1029/2020JC016922 Composite three-dimensional structure Eddy heat transport Mesoscale eddies Mixed layer heat budget South Atlantic Ocean Article 2021 ftwhoas https://doi.org/10.1029/2020JC016922 2022-10-29T22:57:24Z Author Posting. © American Geophysical Union, 2021. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 126(5), (2021): e2020JC016922, https://doi.org/10.1029/2020JC016922. 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. This work is supported by the National Key R&D Program of China (2017YFC1404100 and 2017YFC1404104) and the National Natural Science Foundation of China (Grant No. 41775100, 41830964) as well as Shandong Province’s “Taishan” Scientist Program and Qingdao “Creative and Initiative” ... Article in Journal/Newspaper South Atlantic Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Journal of Geophysical Research: Oceans 126 5 |
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Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
Composite three-dimensional structure Eddy heat transport Mesoscale eddies Mixed layer heat budget South Atlantic Ocean |
spellingShingle |
Composite three-dimensional structure Eddy heat transport Mesoscale eddies Mixed layer heat budget South Atlantic Ocean Wang, Xue Zhang, Shaoqing Lin, Xiaopei Qiu, Bo Yu, Lisan Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean |
topic_facet |
Composite three-dimensional structure Eddy heat transport Mesoscale eddies Mixed layer heat budget South Atlantic Ocean |
description |
Author Posting. © American Geophysical Union, 2021. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 126(5), (2021): e2020JC016922, https://doi.org/10.1029/2020JC016922. 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. This work is supported by the National Key R&D Program of China (2017YFC1404100 and 2017YFC1404104) and the National Natural Science Foundation of China (Grant No. 41775100, 41830964) as well as Shandong Province’s “Taishan” Scientist Program and Qingdao “Creative and Initiative” ... |
format |
Article in Journal/Newspaper |
author |
Wang, Xue Zhang, Shaoqing Lin, Xiaopei Qiu, Bo Yu, Lisan |
author_facet |
Wang, Xue Zhang, Shaoqing Lin, Xiaopei Qiu, Bo Yu, Lisan |
author_sort |
Wang, Xue |
title |
Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean |
title_short |
Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean |
title_full |
Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean |
title_fullStr |
Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean |
title_full_unstemmed |
Characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the South Atlantic Ocean |
title_sort |
characteristics of 3-dimensional structure and heat budget of mesoscale eddies in the south atlantic ocean |
publisher |
American Geophysical Union |
publishDate |
2021 |
url |
https://hdl.handle.net/1912/27754 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
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), e2020JC016922. doi:10.1029/2020JC016922 |
op_relation |
https://doi.org/10.1029/2020JC016922 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), e2020JC016922. https://hdl.handle.net/1912/27754 doi:10.1029/2020JC016922 |
op_doi |
https://doi.org/10.1029/2020JC016922 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
126 |
container_issue |
5 |
_version_ |
1766199450760380416 |