Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints
[1] The ocean thermohaline circulation is important for transports of heat and the carbon cycle.We present results from PMIP2 coupled atmosphere-ocean simulations with four climate models that are also being used for future assessments. These models give very different glacial thermohaline circulati...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.645.8667 2023-05-15T13:40:09+02:00 Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints T. M. Marchitto E. Brady A. Abe-ouchi M. Crucifix The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8667 http://instaar.colorado.edu/~marchitt//reprints/bobgrl07.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8667 http://instaar.colorado.edu/~marchitt//reprints/bobgrl07.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://instaar.colorado.edu/~marchitt//reprints/bobgrl07.pdf text ftciteseerx 2016-01-08T16:10:14Z [1] The ocean thermohaline circulation is important for transports of heat and the carbon cycle.We present results from PMIP2 coupled atmosphere-ocean simulations with four climate models that are also being used for future assessments. These models give very different glacial thermohaline circulations even with comparable circulations for present. An integrated approach using results from these simulations for Last Glacial Maximum (LGM) with proxies of the state of the glacial surface and deep Atlantic supports the interpretation from nutrient tracers that the boundary between North Atlantic Deep Water and Antarctic Bottom Water was much shallower during this period. There is less constraint from this integrated reconstruction regarding the strength of the LGM North Atlantic overturning circulation, although together they suggest that it was neither appreciably stronger nor weaker than modern. Two model simulations identify a role for sea ice in both hemispheres in driving the ocean response to glacial forcing. Citation: Otto-Bliesner, B. L., C. D. Text Antarc* Antarctic North Atlantic Deep Water North Atlantic Sea ice Unknown Antarctic |
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ftciteseerx |
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English |
description |
[1] The ocean thermohaline circulation is important for transports of heat and the carbon cycle.We present results from PMIP2 coupled atmosphere-ocean simulations with four climate models that are also being used for future assessments. These models give very different glacial thermohaline circulations even with comparable circulations for present. An integrated approach using results from these simulations for Last Glacial Maximum (LGM) with proxies of the state of the glacial surface and deep Atlantic supports the interpretation from nutrient tracers that the boundary between North Atlantic Deep Water and Antarctic Bottom Water was much shallower during this period. There is less constraint from this integrated reconstruction regarding the strength of the LGM North Atlantic overturning circulation, although together they suggest that it was neither appreciably stronger nor weaker than modern. Two model simulations identify a role for sea ice in both hemispheres in driving the ocean response to glacial forcing. Citation: Otto-Bliesner, B. L., C. D. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
T. M. Marchitto E. Brady A. Abe-ouchi M. Crucifix |
spellingShingle |
T. M. Marchitto E. Brady A. Abe-ouchi M. Crucifix Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints |
author_facet |
T. M. Marchitto E. Brady A. Abe-ouchi M. Crucifix |
author_sort |
T. M. Marchitto |
title |
Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints |
title_short |
Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints |
title_full |
Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints |
title_fullStr |
Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints |
title_full_unstemmed |
Last Glacial Maximum ocean thermohaline circulation: PMIP2 model intercomparisons and data constraints |
title_sort |
last glacial maximum ocean thermohaline circulation: pmip2 model intercomparisons and data constraints |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8667 http://instaar.colorado.edu/~marchitt//reprints/bobgrl07.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic North Atlantic Deep Water North Atlantic Sea ice |
genre_facet |
Antarc* Antarctic North Atlantic Deep Water North Atlantic Sea ice |
op_source |
http://instaar.colorado.edu/~marchitt//reprints/bobgrl07.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8667 http://instaar.colorado.edu/~marchitt//reprints/bobgrl07.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766128754816450560 |