East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum
The variability of the Atlantic Meridional Overturning Circulation (AMOC) and its governing processes during the Last Glacial Maximum (LGM) is investigated in the Kiel Climate Model (KCM). Under LGM conditions, multidecadal AMOC variability is mainly forced by the surface heat flux variability linke...
Published in: | Geophysical Research Letters |
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AGU (American Geophysical Union)
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Online Access: | https://oceanrep.geomar.de/id/eprint/47853/ https://oceanrep.geomar.de/id/eprint/47853/4/Song_et_al-2019-Geophysical_Research_Letters.pdf https://oceanrep.geomar.de/id/eprint/47853/5/grl59588-sup-0001-2019gl082960-si.docx https://doi.org/10.1029/2019GL082960 |
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ftoceanrep:oai:oceanrep.geomar.de:47853 2023-05-15T17:29:30+02:00 East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum Song, Zhaoyang Latif, Mojib Park, Wonsun 2019-10-16 text https://oceanrep.geomar.de/id/eprint/47853/ https://oceanrep.geomar.de/id/eprint/47853/4/Song_et_al-2019-Geophysical_Research_Letters.pdf https://oceanrep.geomar.de/id/eprint/47853/5/grl59588-sup-0001-2019gl082960-si.docx https://doi.org/10.1029/2019GL082960 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/47853/4/Song_et_al-2019-Geophysical_Research_Letters.pdf https://oceanrep.geomar.de/id/eprint/47853/5/grl59588-sup-0001-2019gl082960-si.docx Song, Z. , Latif, M. and Park, W. (2019) East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum. Open Access Geophysical Research Letters, 46 (19). pp. 10865-10873. DOI 10.1029/2019GL082960 <https://doi.org/10.1029/2019GL082960>. doi:10.1029/2019GL082960 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2019 ftoceanrep https://doi.org/10.1029/2019GL082960 2023-04-07T15:47:32Z The variability of the Atlantic Meridional Overturning Circulation (AMOC) and its governing processes during the Last Glacial Maximum (LGM) is investigated in the Kiel Climate Model (KCM). Under LGM conditions, multidecadal AMOC variability is mainly forced by the surface heat flux variability linked to the East Atlantic pattern (EAP). In contrast, the multidecadal AMOC variability under preindustrial conditions is mainly driven by the surface heat flux variability associated with the North Atlantic Oscillation (NAO). Stand‐alone atmosphere model experiments show that relative to preindustrial conditions, the change in AMOC forcing under LGM conditions is tightly linked to the differences in topography. Key Points Multidecadal AMOC variability during the LGM and its associated physical processes have been investigated by means of a climate model Multidecadal AMOC variability during the LGM is mainly driven by surface heat flux variability linked to the East Atlantic pattern as opposed to the North Atlantic Oscillation under preindustrial conditions Change in topography during the LGM is responsible for the change in AMOC forcing Article in Journal/Newspaper North Atlantic North Atlantic oscillation OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Geophysical Research Letters 46 19 10865 10873 |
institution |
Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
The variability of the Atlantic Meridional Overturning Circulation (AMOC) and its governing processes during the Last Glacial Maximum (LGM) is investigated in the Kiel Climate Model (KCM). Under LGM conditions, multidecadal AMOC variability is mainly forced by the surface heat flux variability linked to the East Atlantic pattern (EAP). In contrast, the multidecadal AMOC variability under preindustrial conditions is mainly driven by the surface heat flux variability associated with the North Atlantic Oscillation (NAO). Stand‐alone atmosphere model experiments show that relative to preindustrial conditions, the change in AMOC forcing under LGM conditions is tightly linked to the differences in topography. Key Points Multidecadal AMOC variability during the LGM and its associated physical processes have been investigated by means of a climate model Multidecadal AMOC variability during the LGM is mainly driven by surface heat flux variability linked to the East Atlantic pattern as opposed to the North Atlantic Oscillation under preindustrial conditions Change in topography during the LGM is responsible for the change in AMOC forcing |
format |
Article in Journal/Newspaper |
author |
Song, Zhaoyang Latif, Mojib Park, Wonsun |
spellingShingle |
Song, Zhaoyang Latif, Mojib Park, Wonsun East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum |
author_facet |
Song, Zhaoyang Latif, Mojib Park, Wonsun |
author_sort |
Song, Zhaoyang |
title |
East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum |
title_short |
East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum |
title_full |
East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum |
title_fullStr |
East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum |
title_full_unstemmed |
East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum |
title_sort |
east atlantic pattern drives multidecadal atlantic meridional overturning circulation variability during the last glacial maximum |
publisher |
AGU (American Geophysical Union) |
publishDate |
2019 |
url |
https://oceanrep.geomar.de/id/eprint/47853/ https://oceanrep.geomar.de/id/eprint/47853/4/Song_et_al-2019-Geophysical_Research_Letters.pdf https://oceanrep.geomar.de/id/eprint/47853/5/grl59588-sup-0001-2019gl082960-si.docx https://doi.org/10.1029/2019GL082960 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://oceanrep.geomar.de/id/eprint/47853/4/Song_et_al-2019-Geophysical_Research_Letters.pdf https://oceanrep.geomar.de/id/eprint/47853/5/grl59588-sup-0001-2019gl082960-si.docx Song, Z. , Latif, M. and Park, W. (2019) East Atlantic Pattern Drives Multidecadal Atlantic Meridional Overturning Circulation Variability during the Last Glacial Maximum. Open Access Geophysical Research Letters, 46 (19). pp. 10865-10873. DOI 10.1029/2019GL082960 <https://doi.org/10.1029/2019GL082960>. doi:10.1029/2019GL082960 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2019GL082960 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
19 |
container_start_page |
10865 |
op_container_end_page |
10873 |
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1766123630274543616 |