Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic
Proxies indicate that the Last Glacial Maximum (LGM) Atlantic Ocean was marked by increased me-ridional and zonal near sea surface temperature gradients relative to today. Using a least squares fit of a full general circulation and sea ice model to upper-ocean proxy data with specified error estimat...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.646.4530 2023-05-15T18:18:13+02:00 Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic Holly Dail Carl Wunsch The Pennsylvania State University CiteSeerX Archives 2013 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.4530 http://ocean.mit.edu/~cwunsch/papersonline/dail_wunsch_jclim_2013.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.4530 http://ocean.mit.edu/~cwunsch/papersonline/dail_wunsch_jclim_2013.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://ocean.mit.edu/~cwunsch/papersonline/dail_wunsch_jclim_2013.pdf text 2013 ftciteseerx 2016-01-08T16:11:37Z Proxies indicate that the Last Glacial Maximum (LGM) Atlantic Ocean was marked by increased me-ridional and zonal near sea surface temperature gradients relative to today. Using a least squares fit of a full general circulation and sea ice model to upper-ocean proxy data with specified error estimates, a seasonally varying reconstruction is sought of the Atlantic Ocean state that is consistent with both the known dynamics and the data. With reasonable uncertainty assumptions for the observations and the adjustable (control) variables, a consistent LGM ocean state is found, one not radically different from the modern one. Inferred changes include a strengthening of the easterly and westerly winds, leading to strengthened subtropical and subpolar gyres, and increased upwelling favorable winds off the coast of Africa, leading to particularly cold SSTs in those regions. 1. Text Sea ice Unknown |
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Open Polar |
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ftciteseerx |
language |
English |
description |
Proxies indicate that the Last Glacial Maximum (LGM) Atlantic Ocean was marked by increased me-ridional and zonal near sea surface temperature gradients relative to today. Using a least squares fit of a full general circulation and sea ice model to upper-ocean proxy data with specified error estimates, a seasonally varying reconstruction is sought of the Atlantic Ocean state that is consistent with both the known dynamics and the data. With reasonable uncertainty assumptions for the observations and the adjustable (control) variables, a consistent LGM ocean state is found, one not radically different from the modern one. Inferred changes include a strengthening of the easterly and westerly winds, leading to strengthened subtropical and subpolar gyres, and increased upwelling favorable winds off the coast of Africa, leading to particularly cold SSTs in those regions. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Holly Dail Carl Wunsch |
spellingShingle |
Holly Dail Carl Wunsch Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic |
author_facet |
Holly Dail Carl Wunsch |
author_sort |
Holly Dail |
title |
Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic |
title_short |
Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic |
title_full |
Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic |
title_fullStr |
Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic |
title_full_unstemmed |
Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic |
title_sort |
dynamical reconstruction of upper-ocean conditions in the last glacial maximum atlantic |
publishDate |
2013 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.4530 http://ocean.mit.edu/~cwunsch/papersonline/dail_wunsch_jclim_2013.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
http://ocean.mit.edu/~cwunsch/papersonline/dail_wunsch_jclim_2013.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.4530 http://ocean.mit.edu/~cwunsch/papersonline/dail_wunsch_jclim_2013.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766194703568470016 |