A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña
The interrannual variability of coastal sea surface temperature (SST) anomalies confined off Senegal is explored from a new viewpoint of the ocean-land-atmosphere interaction. The phenomenon may be classified into “coastal Niño/Niña” in the North Atlantic as discussed recently in the Northeastern Pa...
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ftpubmed:oai:pubmedcentral.nih.gov:4704055 2023-05-15T17:29:27+02:00 A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña Oettli, Pascal Morioka, Yushi Yamagata, Toshio 2016-01-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4704055/ http://www.ncbi.nlm.nih.gov/pubmed/26739121 https://doi.org/10.1038/srep18782 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4704055/ http://www.ncbi.nlm.nih.gov/pubmed/26739121 http://dx.doi.org/10.1038/srep18782 Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep18782 2016-01-24T01:15:27Z The interrannual variability of coastal sea surface temperature (SST) anomalies confined off Senegal is explored from a new viewpoint of the ocean-land-atmosphere interaction. The phenomenon may be classified into “coastal Niño/Niña” in the North Atlantic as discussed recently in the Northeastern Pacific and Southeastern Indian Oceans. The interannual variability of the regional mixed-layer temperature anomaly that evolves in boreal late fall and peaks in spring is associated with the alongshore wind anomaly, mixed-layer depth anomaly and cross-shore atmospheric pressure gradient anomaly, suggesting the existence of ocean-land-atmosphere coupled processes. The coupled warm (cold) event is named Dakar Niño (Niña). The oceanic aspect of the Dakar Niño (Niña) may be basically explained by anomalous warming (cooling) of the anomalously thin (thick) mixed-layer, which absorbs shortwave surface heat flux. In the case of Dakar Niña, however, enhancement of the entrainment at the bottom of the mixed-layer is not negligible. Text North Atlantic PubMed Central (PMC) Indian Pacific Scientific Reports 6 1 |
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Article Oettli, Pascal Morioka, Yushi Yamagata, Toshio A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña |
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Article |
description |
The interrannual variability of coastal sea surface temperature (SST) anomalies confined off Senegal is explored from a new viewpoint of the ocean-land-atmosphere interaction. The phenomenon may be classified into “coastal Niño/Niña” in the North Atlantic as discussed recently in the Northeastern Pacific and Southeastern Indian Oceans. The interannual variability of the regional mixed-layer temperature anomaly that evolves in boreal late fall and peaks in spring is associated with the alongshore wind anomaly, mixed-layer depth anomaly and cross-shore atmospheric pressure gradient anomaly, suggesting the existence of ocean-land-atmosphere coupled processes. The coupled warm (cold) event is named Dakar Niño (Niña). The oceanic aspect of the Dakar Niño (Niña) may be basically explained by anomalous warming (cooling) of the anomalously thin (thick) mixed-layer, which absorbs shortwave surface heat flux. In the case of Dakar Niña, however, enhancement of the entrainment at the bottom of the mixed-layer is not negligible. |
format |
Text |
author |
Oettli, Pascal Morioka, Yushi Yamagata, Toshio |
author_facet |
Oettli, Pascal Morioka, Yushi Yamagata, Toshio |
author_sort |
Oettli, Pascal |
title |
A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña |
title_short |
A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña |
title_full |
A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña |
title_fullStr |
A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña |
title_full_unstemmed |
A Regional Climate Mode Discovered in the North Atlantic: Dakar Niño/Niña |
title_sort |
regional climate mode discovered in the north atlantic: dakar niño/niña |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4704055/ http://www.ncbi.nlm.nih.gov/pubmed/26739121 https://doi.org/10.1038/srep18782 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4704055/ http://www.ncbi.nlm.nih.gov/pubmed/26739121 http://dx.doi.org/10.1038/srep18782 |
op_rights |
Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/srep18782 |
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Scientific Reports |
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