Arctic and Antarctic forcing of ocean interior warming during the last deglaciation
Abstract Subsurface water masses formed at high latitudes impact the latitudinal distribution of heat in the ocean. Yet uncertainty surrounding the timing of low-latitude warming during the last deglaciation (18–10 ka) means that controls on sub-surface temperature rise remain unclear. Here we prese...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Portfolio
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1038/s41598-023-49435-0 https://doaj.org/article/aa033d2f8daf4506a1fd61529eb95182 |
id |
ftdoajarticles:oai:doaj.org/article:aa033d2f8daf4506a1fd61529eb95182 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:aa033d2f8daf4506a1fd61529eb95182 2024-01-21T10:01:43+01:00 Arctic and Antarctic forcing of ocean interior warming during the last deglaciation Joseph A. Stewart Laura F. Robinson James W. B. Rae Andrea Burke Tianyu Chen Tao Li Maria Luiza de Carvalho Ferreira Daniel J. Fornari 2023-12-01T00:00:00Z https://doi.org/10.1038/s41598-023-49435-0 https://doaj.org/article/aa033d2f8daf4506a1fd61529eb95182 EN eng Nature Portfolio https://doi.org/10.1038/s41598-023-49435-0 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-023-49435-0 2045-2322 https://doaj.org/article/aa033d2f8daf4506a1fd61529eb95182 Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1038/s41598-023-49435-0 2023-12-24T01:47:15Z Abstract Subsurface water masses formed at high latitudes impact the latitudinal distribution of heat in the ocean. Yet uncertainty surrounding the timing of low-latitude warming during the last deglaciation (18–10 ka) means that controls on sub-surface temperature rise remain unclear. Here we present seawater temperature records on a precise common age-scale from East Equatorial Pacific (EEP), Equatorial Atlantic, and Southern Ocean intermediate waters using new Li/Mg records from cold water corals. We find coeval warming in the tropical EEP and Atlantic during Heinrich Stadial 1 (+ 6 °C) that closely resemble warming recorded in Antarctic ice cores, with more modest warming of the Southern Ocean (+ 3 °C). The magnitude and depth of low-latitude ocean warming implies that downward accumulation of heat following Atlantic Meridional Overturning Circulation (AMOC) slowdown played a key role in heating the ocean interior, with heat advection from southern-sourced intermediate waters playing an additional role. Article in Journal/Newspaper Antarc* Antarctic Arctic Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Arctic Pacific Southern Ocean Scientific Reports 13 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Joseph A. Stewart Laura F. Robinson James W. B. Rae Andrea Burke Tianyu Chen Tao Li Maria Luiza de Carvalho Ferreira Daniel J. Fornari Arctic and Antarctic forcing of ocean interior warming during the last deglaciation |
topic_facet |
Medicine R Science Q |
description |
Abstract Subsurface water masses formed at high latitudes impact the latitudinal distribution of heat in the ocean. Yet uncertainty surrounding the timing of low-latitude warming during the last deglaciation (18–10 ka) means that controls on sub-surface temperature rise remain unclear. Here we present seawater temperature records on a precise common age-scale from East Equatorial Pacific (EEP), Equatorial Atlantic, and Southern Ocean intermediate waters using new Li/Mg records from cold water corals. We find coeval warming in the tropical EEP and Atlantic during Heinrich Stadial 1 (+ 6 °C) that closely resemble warming recorded in Antarctic ice cores, with more modest warming of the Southern Ocean (+ 3 °C). The magnitude and depth of low-latitude ocean warming implies that downward accumulation of heat following Atlantic Meridional Overturning Circulation (AMOC) slowdown played a key role in heating the ocean interior, with heat advection from southern-sourced intermediate waters playing an additional role. |
format |
Article in Journal/Newspaper |
author |
Joseph A. Stewart Laura F. Robinson James W. B. Rae Andrea Burke Tianyu Chen Tao Li Maria Luiza de Carvalho Ferreira Daniel J. Fornari |
author_facet |
Joseph A. Stewart Laura F. Robinson James W. B. Rae Andrea Burke Tianyu Chen Tao Li Maria Luiza de Carvalho Ferreira Daniel J. Fornari |
author_sort |
Joseph A. Stewart |
title |
Arctic and Antarctic forcing of ocean interior warming during the last deglaciation |
title_short |
Arctic and Antarctic forcing of ocean interior warming during the last deglaciation |
title_full |
Arctic and Antarctic forcing of ocean interior warming during the last deglaciation |
title_fullStr |
Arctic and Antarctic forcing of ocean interior warming during the last deglaciation |
title_full_unstemmed |
Arctic and Antarctic forcing of ocean interior warming during the last deglaciation |
title_sort |
arctic and antarctic forcing of ocean interior warming during the last deglaciation |
publisher |
Nature Portfolio |
publishDate |
2023 |
url |
https://doi.org/10.1038/s41598-023-49435-0 https://doaj.org/article/aa033d2f8daf4506a1fd61529eb95182 |
geographic |
Antarctic Arctic Pacific Southern Ocean |
geographic_facet |
Antarctic Arctic Pacific Southern Ocean |
genre |
Antarc* Antarctic Arctic Southern Ocean |
genre_facet |
Antarc* Antarctic Arctic Southern Ocean |
op_source |
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023) |
op_relation |
https://doi.org/10.1038/s41598-023-49435-0 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-023-49435-0 2045-2322 https://doaj.org/article/aa033d2f8daf4506a1fd61529eb95182 |
op_doi |
https://doi.org/10.1038/s41598-023-49435-0 |
container_title |
Scientific Reports |
container_volume |
13 |
container_issue |
1 |
_version_ |
1788691781576032256 |