Atlantic Multidecadal Variability in a model with an improved North Atlantic Current
We examine the simulated Atlantic Multidecadal Variability (AMV) in a model that includes a correction for a longstanding problem with climate models, namely the misplacement of the North Atlantic Current. The corrected model shows that in the warm AMV phase, heat is lost by the ocean in the northwe...
Published in: | Geophysical Research Letters |
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AGU (American Geophysical Union)
2016
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Online Access: | https://oceanrep.geomar.de/id/eprint/33470/ https://oceanrep.geomar.de/id/eprint/33470/1/grl54773.pdf https://oceanrep.geomar.de/id/eprint/33470/2/grl54773-sup-0001-supinfo.pdf https://oceanrep.geomar.de/id/eprint/33470/13/drews_greatbatch_2015_accepted_draft.pdf https://doi.org/10.1002/2016GL069815 |
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ftoceanrep:oai:oceanrep.geomar.de:33470 2023-05-15T17:25:16+02:00 Atlantic Multidecadal Variability in a model with an improved North Atlantic Current Drews, Annika Greatbatch, Richard John 2016-08-08 text https://oceanrep.geomar.de/id/eprint/33470/ https://oceanrep.geomar.de/id/eprint/33470/1/grl54773.pdf https://oceanrep.geomar.de/id/eprint/33470/2/grl54773-sup-0001-supinfo.pdf https://oceanrep.geomar.de/id/eprint/33470/13/drews_greatbatch_2015_accepted_draft.pdf https://doi.org/10.1002/2016GL069815 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/33470/1/grl54773.pdf https://oceanrep.geomar.de/id/eprint/33470/2/grl54773-sup-0001-supinfo.pdf https://oceanrep.geomar.de/id/eprint/33470/13/drews_greatbatch_2015_accepted_draft.pdf Drews, A. and Greatbatch, R. J. (2016) Atlantic Multidecadal Variability in a model with an improved North Atlantic Current. Open Access Geophysical Research Letters, 43 (15). pp. 8199-8206. DOI 10.1002/2016GL069815 <https://doi.org/10.1002/2016GL069815>. doi:10.1002/2016GL069815 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1002/2016GL069815 2023-04-07T15:26:43Z We examine the simulated Atlantic Multidecadal Variability (AMV) in a model that includes a correction for a longstanding problem with climate models, namely the misplacement of the North Atlantic Current. The corrected model shows that in the warm AMV phase, heat is lost by the ocean in the northwestern part of the basin and gained by the ocean to the east, suggesting an advective transfer of heat by the mid-latitude westerlies. The basin wide response is consistent with a role for cloud feedback and is in broad agreement with estimates from observations, but is poorly represented in the uncorrected model. The corrected model is then used to show that the ocean/atmosphere heat transfer is influenced by low frequency variability in the overlying atmosphere. We also argue that changing ocean heat transport is an essential feature of our results. Article in Journal/Newspaper north atlantic current North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Geophysical Research Letters 43 15 8199 8206 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
We examine the simulated Atlantic Multidecadal Variability (AMV) in a model that includes a correction for a longstanding problem with climate models, namely the misplacement of the North Atlantic Current. The corrected model shows that in the warm AMV phase, heat is lost by the ocean in the northwestern part of the basin and gained by the ocean to the east, suggesting an advective transfer of heat by the mid-latitude westerlies. The basin wide response is consistent with a role for cloud feedback and is in broad agreement with estimates from observations, but is poorly represented in the uncorrected model. The corrected model is then used to show that the ocean/atmosphere heat transfer is influenced by low frequency variability in the overlying atmosphere. We also argue that changing ocean heat transport is an essential feature of our results. |
format |
Article in Journal/Newspaper |
author |
Drews, Annika Greatbatch, Richard John |
spellingShingle |
Drews, Annika Greatbatch, Richard John Atlantic Multidecadal Variability in a model with an improved North Atlantic Current |
author_facet |
Drews, Annika Greatbatch, Richard John |
author_sort |
Drews, Annika |
title |
Atlantic Multidecadal Variability in a model with an improved North Atlantic Current |
title_short |
Atlantic Multidecadal Variability in a model with an improved North Atlantic Current |
title_full |
Atlantic Multidecadal Variability in a model with an improved North Atlantic Current |
title_fullStr |
Atlantic Multidecadal Variability in a model with an improved North Atlantic Current |
title_full_unstemmed |
Atlantic Multidecadal Variability in a model with an improved North Atlantic Current |
title_sort |
atlantic multidecadal variability in a model with an improved north atlantic current |
publisher |
AGU (American Geophysical Union) |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/33470/ https://oceanrep.geomar.de/id/eprint/33470/1/grl54773.pdf https://oceanrep.geomar.de/id/eprint/33470/2/grl54773-sup-0001-supinfo.pdf https://oceanrep.geomar.de/id/eprint/33470/13/drews_greatbatch_2015_accepted_draft.pdf https://doi.org/10.1002/2016GL069815 |
genre |
north atlantic current North Atlantic |
genre_facet |
north atlantic current North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/33470/1/grl54773.pdf https://oceanrep.geomar.de/id/eprint/33470/2/grl54773-sup-0001-supinfo.pdf https://oceanrep.geomar.de/id/eprint/33470/13/drews_greatbatch_2015_accepted_draft.pdf Drews, A. and Greatbatch, R. J. (2016) Atlantic Multidecadal Variability in a model with an improved North Atlantic Current. Open Access Geophysical Research Letters, 43 (15). pp. 8199-8206. DOI 10.1002/2016GL069815 <https://doi.org/10.1002/2016GL069815>. doi:10.1002/2016GL069815 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2016GL069815 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
15 |
container_start_page |
8199 |
op_container_end_page |
8206 |
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1766116657466441728 |