Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy
Climate indices based on sea surface temperature (SST) can synthesize information related to physical processes that describe change and variability in continental precipitation from floods to droughts. The South Atlantic Subtropical Dipole index (SASD) is based on the distribution of SST in the Sou...
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ftpubmed:oai:pubmedcentral.nih.gov:4055897 2023-05-15T18:21:07+02:00 Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy Wainer, Ilana Prado, Luciana Figueiredo Khodri, Myriam Otto-Bliesner, Bette 2014-06-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4055897 http://www.ncbi.nlm.nih.gov/pubmed/24924600 https://doi.org/10.1038/srep05291 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/24924600 http://dx.doi.org/10.1038/srep05291 Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 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 in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Article Text 2014 ftpubmed https://doi.org/10.1038/srep05291 2014-06-22T00:57:39Z Climate indices based on sea surface temperature (SST) can synthesize information related to physical processes that describe change and variability in continental precipitation from floods to droughts. The South Atlantic Subtropical Dipole index (SASD) is based on the distribution of SST in the South Atlantic and fits these criteria. It represents the dominant mode of variability of SST in the South Atlantic, which is modulated by changes in the position and intensity of the South Atlantic Subtropical High. Here we reconstructed an index of the South Atlantic Ocean SST (SASD-like) for the past twelve thousand years (the Holocene period) based on proxy-data. This has great scientific implications and important socio-economic ramifications because of its ability to infer variability of precipitation and moisture over South America where past climate data is limited. For the first time a reconstructed index based on proxy data on opposite sides of the SASD-like mode is able to capture, in the South Atlantic, the significant cold events in the Northern Hemisphere at 12.9−11.6 kyr BP and 8.6−8.0 ky BP. These events are related, using a transient model simulation, to precipitation changes over South America. Text South Atlantic Ocean PubMed Central (PMC) Scientific Reports 4 1 |
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Article Wainer, Ilana Prado, Luciana Figueiredo Khodri, Myriam Otto-Bliesner, Bette Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy |
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Article |
description |
Climate indices based on sea surface temperature (SST) can synthesize information related to physical processes that describe change and variability in continental precipitation from floods to droughts. The South Atlantic Subtropical Dipole index (SASD) is based on the distribution of SST in the South Atlantic and fits these criteria. It represents the dominant mode of variability of SST in the South Atlantic, which is modulated by changes in the position and intensity of the South Atlantic Subtropical High. Here we reconstructed an index of the South Atlantic Ocean SST (SASD-like) for the past twelve thousand years (the Holocene period) based on proxy-data. This has great scientific implications and important socio-economic ramifications because of its ability to infer variability of precipitation and moisture over South America where past climate data is limited. For the first time a reconstructed index based on proxy data on opposite sides of the SASD-like mode is able to capture, in the South Atlantic, the significant cold events in the Northern Hemisphere at 12.9−11.6 kyr BP and 8.6−8.0 ky BP. These events are related, using a transient model simulation, to precipitation changes over South America. |
format |
Text |
author |
Wainer, Ilana Prado, Luciana Figueiredo Khodri, Myriam Otto-Bliesner, Bette |
author_facet |
Wainer, Ilana Prado, Luciana Figueiredo Khodri, Myriam Otto-Bliesner, Bette |
author_sort |
Wainer, Ilana |
title |
Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy |
title_short |
Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy |
title_full |
Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy |
title_fullStr |
Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy |
title_full_unstemmed |
Reconstruction of the South Atlantic Subtropical Dipole index for the past 12,000 years from surface temperature proxy |
title_sort |
reconstruction of the south atlantic subtropical dipole index for the past 12,000 years from surface temperature proxy |
publisher |
Nature Publishing Group |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4055897 http://www.ncbi.nlm.nih.gov/pubmed/24924600 https://doi.org/10.1038/srep05291 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/24924600 http://dx.doi.org/10.1038/srep05291 |
op_rights |
Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 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 in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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CC-BY-NC-ND |
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https://doi.org/10.1038/srep05291 |
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