Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation
As an extreme scenario of dynamical sea level changes, regional sea surface height (SSH) changes that occur in the North Atlantic due to an abrupt weakening of the Atlantic meridional overturning circulation (AMOC) are simulated. Two versions of the same ocean-only model are used to study the effect...
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2014
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Online Access: | https://doi.org/10.5194/os-10-881-2014 https://doaj.org/article/cdf2585857784e9188706331d3969c5e |
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ftdoajarticles:oai:doaj.org/article:cdf2585857784e9188706331d3969c5e 2023-05-15T16:29:03+02:00 Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation S.-E. Brunnabend H. A. Dijkstra M. A. Kliphuis B. van Werkhoven H. E. Bal F. Seinstra J. Maassen M. van Meersbergen 2014-11-01T00:00:00Z https://doi.org/10.5194/os-10-881-2014 https://doaj.org/article/cdf2585857784e9188706331d3969c5e EN eng Copernicus Publications http://www.ocean-sci.net/10/881/2014/os-10-881-2014.pdf https://doaj.org/toc/1812-0784 https://doaj.org/toc/1812-0792 1812-0784 1812-0792 doi:10.5194/os-10-881-2014 https://doaj.org/article/cdf2585857784e9188706331d3969c5e Ocean Science, Vol 10, Iss 6, Pp 881-891 (2014) Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 2014 ftdoajarticles https://doi.org/10.5194/os-10-881-2014 2022-12-31T11:41:31Z As an extreme scenario of dynamical sea level changes, regional sea surface height (SSH) changes that occur in the North Atlantic due to an abrupt weakening of the Atlantic meridional overturning circulation (AMOC) are simulated. Two versions of the same ocean-only model are used to study the effect of ocean model resolution on these SSH changes: a high-resolution (HR) strongly eddying version and a low-resolution (LR) version in which the effect of eddies is parameterised. The weakening of the AMOC is induced in both model versions by applying strong freshwater perturbations around Greenland. A rapid decrease of the AMOC in the HR version induces much shorter return times of several specific regional and coastal extremes in North Atlantic SSH than in the LR version. This effect is caused by a change in main eddy pathways associated with a change in separation latitude of the Gulf Stream. Article in Journal/Newspaper Greenland North Atlantic Directory of Open Access Journals: DOAJ Articles Greenland Ocean Science 10 6 881 891 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
spellingShingle |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 S.-E. Brunnabend H. A. Dijkstra M. A. Kliphuis B. van Werkhoven H. E. Bal F. Seinstra J. Maassen M. van Meersbergen Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
topic_facet |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
As an extreme scenario of dynamical sea level changes, regional sea surface height (SSH) changes that occur in the North Atlantic due to an abrupt weakening of the Atlantic meridional overturning circulation (AMOC) are simulated. Two versions of the same ocean-only model are used to study the effect of ocean model resolution on these SSH changes: a high-resolution (HR) strongly eddying version and a low-resolution (LR) version in which the effect of eddies is parameterised. The weakening of the AMOC is induced in both model versions by applying strong freshwater perturbations around Greenland. A rapid decrease of the AMOC in the HR version induces much shorter return times of several specific regional and coastal extremes in North Atlantic SSH than in the LR version. This effect is caused by a change in main eddy pathways associated with a change in separation latitude of the Gulf Stream. |
format |
Article in Journal/Newspaper |
author |
S.-E. Brunnabend H. A. Dijkstra M. A. Kliphuis B. van Werkhoven H. E. Bal F. Seinstra J. Maassen M. van Meersbergen |
author_facet |
S.-E. Brunnabend H. A. Dijkstra M. A. Kliphuis B. van Werkhoven H. E. Bal F. Seinstra J. Maassen M. van Meersbergen |
author_sort |
S.-E. Brunnabend |
title |
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
title_short |
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
title_full |
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
title_fullStr |
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
title_full_unstemmed |
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
title_sort |
changes in extreme regional sea surface height due to an abrupt weakening of the atlantic meridional overturning circulation |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/os-10-881-2014 https://doaj.org/article/cdf2585857784e9188706331d3969c5e |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Ocean Science, Vol 10, Iss 6, Pp 881-891 (2014) |
op_relation |
http://www.ocean-sci.net/10/881/2014/os-10-881-2014.pdf https://doaj.org/toc/1812-0784 https://doaj.org/toc/1812-0792 1812-0784 1812-0792 doi:10.5194/os-10-881-2014 https://doaj.org/article/cdf2585857784e9188706331d3969c5e |
op_doi |
https://doi.org/10.5194/os-10-881-2014 |
container_title |
Ocean Science |
container_volume |
10 |
container_issue |
6 |
container_start_page |
881 |
op_container_end_page |
891 |
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1766018734531543040 |