Sensitivity of a global ice-ocean model to the Bering Strait throughflow
To understand the influence of the Bering Strait on the World Ocean's circulation, a model sensitivity analysis is conducted. The numerical experiments are carried out with a global, coupled ice-ocean model. The water transport through the Bering Strait is parametrized according to the geostrop...
Published in: | Climate Dynamics |
---|---|
Main Authors: | , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Verlag
1997
|
Subjects: | |
Online Access: | http://hdl.handle.net/2078.1/62727 https://doi.org/10.1007/s003820050170 |
id |
ftunivlouvain:oai:dial.uclouvain.be:boreal:62727 |
---|---|
record_format |
openpolar |
spelling |
ftunivlouvain:oai:dial.uclouvain.be:boreal:62727 2024-05-19T07:38:23+00:00 Sensitivity of a global ice-ocean model to the Bering Strait throughflow Goosse, Hugues Campin, JM. Fichefet, Thierry Deleersnijder, Eric 3rd International Conference on Modelling of Global Climate Change and Variability UCL - SC/PHYS - Département de physique UCL - SST/ELI/ELIC - Earth & Climate 1997 http://hdl.handle.net/2078.1/62727 https://doi.org/10.1007/s003820050170 eng eng Springer Verlag boreal:62727 http://hdl.handle.net/2078.1/62727 doi:10.1007/s003820050170 urn:ISSN:0930-7575 urn:EISSN:1432-0894 info:eu-repo/semantics/restrictedAccess Climate Dynamics : observational, theoretical and computational research on the climate system, Vol. 13, no. 5, p. 349-358 (1997) info:eu-repo/semantics/article 1997 ftunivlouvain https://doi.org/10.1007/s003820050170 2024-04-24T01:46:51Z To understand the influence of the Bering Strait on the World Ocean's circulation, a model sensitivity analysis is conducted. The numerical experiments are carried out with a global, coupled ice-ocean model. The water transport through the Bering Strait is parametrized according to the geostrophic control theory. The model is driven by surface fluxes derived from bulk formulae assuming a prescribed atmospheric seasonal cycle. In addition, a weak restoring to observed surface salinities is applied to compensate for the global imbalance of the imposed surface freshwater fluxes. The freshwater flux from the North Pacific to the North Atlantic associated with the Bering Strait throughflow seems to be an important element in the freshwater budget of the Greenland and Norwegian seas and of the Atlantic. This flux induces a freshening of the North Atlantic surface waters, which reduces the convective activity and leads to a noticeable (6%) weakening of the thermohaline conveyor belt. It is argued that the contrasting results obtained by Reason and Power are due to the type of surface boundary conditions they used. Article in Journal/Newspaper Bering Strait Greenland North Atlantic DIAL@UCLouvain (Université catholique de Louvain) Climate Dynamics 13 5 349 358 |
institution |
Open Polar |
collection |
DIAL@UCLouvain (Université catholique de Louvain) |
op_collection_id |
ftunivlouvain |
language |
English |
description |
To understand the influence of the Bering Strait on the World Ocean's circulation, a model sensitivity analysis is conducted. The numerical experiments are carried out with a global, coupled ice-ocean model. The water transport through the Bering Strait is parametrized according to the geostrophic control theory. The model is driven by surface fluxes derived from bulk formulae assuming a prescribed atmospheric seasonal cycle. In addition, a weak restoring to observed surface salinities is applied to compensate for the global imbalance of the imposed surface freshwater fluxes. The freshwater flux from the North Pacific to the North Atlantic associated with the Bering Strait throughflow seems to be an important element in the freshwater budget of the Greenland and Norwegian seas and of the Atlantic. This flux induces a freshening of the North Atlantic surface waters, which reduces the convective activity and leads to a noticeable (6%) weakening of the thermohaline conveyor belt. It is argued that the contrasting results obtained by Reason and Power are due to the type of surface boundary conditions they used. |
author2 |
UCL - SC/PHYS - Département de physique UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Goosse, Hugues Campin, JM. Fichefet, Thierry Deleersnijder, Eric 3rd International Conference on Modelling of Global Climate Change and Variability |
spellingShingle |
Goosse, Hugues Campin, JM. Fichefet, Thierry Deleersnijder, Eric 3rd International Conference on Modelling of Global Climate Change and Variability Sensitivity of a global ice-ocean model to the Bering Strait throughflow |
author_facet |
Goosse, Hugues Campin, JM. Fichefet, Thierry Deleersnijder, Eric 3rd International Conference on Modelling of Global Climate Change and Variability |
author_sort |
Goosse, Hugues |
title |
Sensitivity of a global ice-ocean model to the Bering Strait throughflow |
title_short |
Sensitivity of a global ice-ocean model to the Bering Strait throughflow |
title_full |
Sensitivity of a global ice-ocean model to the Bering Strait throughflow |
title_fullStr |
Sensitivity of a global ice-ocean model to the Bering Strait throughflow |
title_full_unstemmed |
Sensitivity of a global ice-ocean model to the Bering Strait throughflow |
title_sort |
sensitivity of a global ice-ocean model to the bering strait throughflow |
publisher |
Springer Verlag |
publishDate |
1997 |
url |
http://hdl.handle.net/2078.1/62727 https://doi.org/10.1007/s003820050170 |
genre |
Bering Strait Greenland North Atlantic |
genre_facet |
Bering Strait Greenland North Atlantic |
op_source |
Climate Dynamics : observational, theoretical and computational research on the climate system, Vol. 13, no. 5, p. 349-358 (1997) |
op_relation |
boreal:62727 http://hdl.handle.net/2078.1/62727 doi:10.1007/s003820050170 urn:ISSN:0930-7575 urn:EISSN:1432-0894 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s003820050170 |
container_title |
Climate Dynamics |
container_volume |
13 |
container_issue |
5 |
container_start_page |
349 |
op_container_end_page |
358 |
_version_ |
1799477832431173632 |