Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene
Records of atmospheric carbon dioxide concentration (Pco_2) and Antarctic temperature have revealed an intriguing change in the magnitude of interglacial warmth and Pco_2 at around 430,000 years ago (430 ka), but the global climate repercussions of this change remain elusive. Here, we present a stal...
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American Association for the Advancement of Science
2012
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ftcaltechauth:oai:authors.library.caltech.edu:32048 2023-05-15T13:37:29+02:00 Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene Meckler, A. N. Clarkson, M. O. Cobb, K. M. Sodemann, H. Adkins, J. F. 2012-06-08 https://authors.library.caltech.edu/32048/ https://resolver.caltech.edu/CaltechAUTHORS:20120622-151730519 unknown American Association for the Advancement of Science Meckler, A. N. and Clarkson, M. O. and Cobb, K. M. and Sodemann, H. and Adkins, J. F. (2012) Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene. Science, 336 (6086). pp. 1301-1304. ISSN 0036-8075. doi:10.1126/science.1218340. https://resolver.caltech.edu/CaltechAUTHORS:20120622-151730519 <https://resolver.caltech.edu/CaltechAUTHORS:20120622-151730519> Article PeerReviewed 2012 ftcaltechauth https://doi.org/10.1126/science.1218340 2021-11-11T18:50:04Z Records of atmospheric carbon dioxide concentration (Pco_2) and Antarctic temperature have revealed an intriguing change in the magnitude of interglacial warmth and Pco_2 at around 430,000 years ago (430 ka), but the global climate repercussions of this change remain elusive. Here, we present a stalagmite-based reconstruction of tropical West Pacific hydroclimate from 570 to 210 ka. The results suggest similar regional precipitation amounts across the four interglacials contained in the record, implying that tropical hydroclimate was insensitive to interglacial differences in Pco_2 and high-latitude temperature. In contrast, during glacial terminations, drying in the tropical West Pacific accompanied cooling events in northern high latitudes. Therefore, the tropical convective heat engine can either stabilize or amplify global climate change, depending on the nature of the climate forcing. Article in Journal/Newspaper Antarc* Antarctic Caltech Authors (California Institute of Technology) Antarctic Pacific Science 336 6086 1301 1304 |
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Open Polar |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
unknown |
description |
Records of atmospheric carbon dioxide concentration (Pco_2) and Antarctic temperature have revealed an intriguing change in the magnitude of interglacial warmth and Pco_2 at around 430,000 years ago (430 ka), but the global climate repercussions of this change remain elusive. Here, we present a stalagmite-based reconstruction of tropical West Pacific hydroclimate from 570 to 210 ka. The results suggest similar regional precipitation amounts across the four interglacials contained in the record, implying that tropical hydroclimate was insensitive to interglacial differences in Pco_2 and high-latitude temperature. In contrast, during glacial terminations, drying in the tropical West Pacific accompanied cooling events in northern high latitudes. Therefore, the tropical convective heat engine can either stabilize or amplify global climate change, depending on the nature of the climate forcing. |
format |
Article in Journal/Newspaper |
author |
Meckler, A. N. Clarkson, M. O. Cobb, K. M. Sodemann, H. Adkins, J. F. |
spellingShingle |
Meckler, A. N. Clarkson, M. O. Cobb, K. M. Sodemann, H. Adkins, J. F. Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene |
author_facet |
Meckler, A. N. Clarkson, M. O. Cobb, K. M. Sodemann, H. Adkins, J. F. |
author_sort |
Meckler, A. N. |
title |
Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene |
title_short |
Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene |
title_full |
Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene |
title_fullStr |
Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene |
title_full_unstemmed |
Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene |
title_sort |
interglacial hydroclimate in the tropical west pacific through the late pleistocene |
publisher |
American Association for the Advancement of Science |
publishDate |
2012 |
url |
https://authors.library.caltech.edu/32048/ https://resolver.caltech.edu/CaltechAUTHORS:20120622-151730519 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Meckler, A. N. and Clarkson, M. O. and Cobb, K. M. and Sodemann, H. and Adkins, J. F. (2012) Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene. Science, 336 (6086). pp. 1301-1304. ISSN 0036-8075. doi:10.1126/science.1218340. https://resolver.caltech.edu/CaltechAUTHORS:20120622-151730519 <https://resolver.caltech.edu/CaltechAUTHORS:20120622-151730519> |
op_doi |
https://doi.org/10.1126/science.1218340 |
container_title |
Science |
container_volume |
336 |
container_issue |
6086 |
container_start_page |
1301 |
op_container_end_page |
1304 |
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1766092176236740608 |