Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum.
A rapid increase in greenhouse gas levels is thought to have fueled global warming at the Paleocene-Eocene Thermal Maximum (PETM). Foraminiferal magnesium/calcium ratios indicate that bottom waters warmed by 4° to 5°C, similar to tropical and subtropical surface ocean waters, implying no amplificati...
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Online Access: | http://eprints.esc.cam.ac.uk/1851/ http://eprints.esc.cam.ac.uk/1851/1/Deep-Sea_-_Tripati.pdf https://doi.org/10.1126/science.1109202 |
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ftucambridgeesc:oai:eprints.esc.cam.ac.uk:1851 2023-05-15T17:11:56+02:00 Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. Tripati, A. K. Elderfield, H. 2005 application/pdf http://eprints.esc.cam.ac.uk/1851/ http://eprints.esc.cam.ac.uk/1851/1/Deep-Sea_-_Tripati.pdf https://doi.org/10.1126/science.1109202 en eng http://eprints.esc.cam.ac.uk/1851/1/Deep-Sea_-_Tripati.pdf Tripati, A. K. and Elderfield, H. (2005) Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. Science, 308. pp. 1894-1898. DOI https://doi.org/10.1126/science.1109202 <https://doi.org/10.1126/science.1109202> 01 - Climate Change and Earth-Ocean Atmosphere Systems Article PeerReviewed 2005 ftucambridgeesc https://doi.org/10.1126/science.1109202 2020-08-27T18:09:03Z A rapid increase in greenhouse gas levels is thought to have fueled global warming at the Paleocene-Eocene Thermal Maximum (PETM). Foraminiferal magnesium/calcium ratios indicate that bottom waters warmed by 4° to 5°C, similar to tropical and subtropical surface ocean waters, implying no amplification of warming in high-latitude regions of deep-water formation under ice-free conditions. Intermediate waters warmed before the carbon isotope excursion, in association with downwelling in the North Pacific and reduced Southern Ocean convection, supporting changing circulation as the trigger for methane hydrate release. A switch to deep convection in the North Pacific at the PETM onset could have amplified and sustained warming. Article in Journal/Newspaper Methane hydrate Southern Ocean University of Cambridge, Department of Earth Sciences: ESC Publications Southern Ocean Pacific Science 308 5730 1894 1898 |
institution |
Open Polar |
collection |
University of Cambridge, Department of Earth Sciences: ESC Publications |
op_collection_id |
ftucambridgeesc |
language |
English |
topic |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
spellingShingle |
01 - Climate Change and Earth-Ocean Atmosphere Systems Tripati, A. K. Elderfield, H. Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. |
topic_facet |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
description |
A rapid increase in greenhouse gas levels is thought to have fueled global warming at the Paleocene-Eocene Thermal Maximum (PETM). Foraminiferal magnesium/calcium ratios indicate that bottom waters warmed by 4° to 5°C, similar to tropical and subtropical surface ocean waters, implying no amplification of warming in high-latitude regions of deep-water formation under ice-free conditions. Intermediate waters warmed before the carbon isotope excursion, in association with downwelling in the North Pacific and reduced Southern Ocean convection, supporting changing circulation as the trigger for methane hydrate release. A switch to deep convection in the North Pacific at the PETM onset could have amplified and sustained warming. |
format |
Article in Journal/Newspaper |
author |
Tripati, A. K. Elderfield, H. |
author_facet |
Tripati, A. K. Elderfield, H. |
author_sort |
Tripati, A. K. |
title |
Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. |
title_short |
Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. |
title_full |
Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. |
title_fullStr |
Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. |
title_full_unstemmed |
Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. |
title_sort |
deep-sea temperature and circulation changes at the paleocene-eocene thermal maximum. |
publishDate |
2005 |
url |
http://eprints.esc.cam.ac.uk/1851/ http://eprints.esc.cam.ac.uk/1851/1/Deep-Sea_-_Tripati.pdf https://doi.org/10.1126/science.1109202 |
geographic |
Southern Ocean Pacific |
geographic_facet |
Southern Ocean Pacific |
genre |
Methane hydrate Southern Ocean |
genre_facet |
Methane hydrate Southern Ocean |
op_relation |
http://eprints.esc.cam.ac.uk/1851/1/Deep-Sea_-_Tripati.pdf Tripati, A. K. and Elderfield, H. (2005) Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. Science, 308. pp. 1894-1898. DOI https://doi.org/10.1126/science.1109202 <https://doi.org/10.1126/science.1109202> |
op_doi |
https://doi.org/10.1126/science.1109202 |
container_title |
Science |
container_volume |
308 |
container_issue |
5730 |
container_start_page |
1894 |
op_container_end_page |
1898 |
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1766068679757266944 |