On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections
The mean state and variability of deep convection in the ocean influence the North Atlantic climate. Using an ensemble experiment with a coupled atmosphere–ocean–sea ice model, it is shown that cooling and subdued warming areas can occur over the North Atlantic Ocean and adjacent landmasses unde...
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Language: | English |
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American Meteorological Society
2004
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Online Access: | http://hdl.handle.net/2078.1/129620 https://doi.org/10.1175/3174.1 |
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:129620 2024-05-12T07:56:27+00:00 On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections Schaeffer, M. Selten, F. Goosse, Hugues Opsteegh, T. UCL - SST/ELI/ELIC - Earth & Climate 2004 http://hdl.handle.net/2078.1/129620 https://doi.org/10.1175/3174.1 eng eng American Meteorological Society boreal:129620 http://hdl.handle.net/2078.1/129620 doi:10.1175/3174.1 urn:ISSN:0894-8755 urn:EISSN:1520-0442 info:eu-repo/semantics/restrictedAccess Journal of Climate, Vol. 17, no.22, p. 4316-4329 (2004) CISM: CECI 1443 info:eu-repo/semantics/article 2004 ftunistlouisbrus https://doi.org/10.1175/3174.1 2024-04-18T18:00:45Z The mean state and variability of deep convection in the ocean influence the North Atlantic climate. Using an ensemble experiment with a coupled atmosphere–ocean–sea ice model, it is shown that cooling and subdued warming areas can occur over the North Atlantic Ocean and adjacent landmasses under global warming. Different ‘‘present-day’’ convection patterns in the Greenland–Iceland–Norway (GIN) Sea result in different future surface- air temperature changes. At higher latitudes, the more effective positive sea ice feedback increases the likelihood of changes in convection causing a regional cooling that is larger than the warming brought about by the enhanced greenhouse effect. The modeled freshening of deep ocean layers in the North Atlantic in a time period preceding a reorganization of GIN Sea convection is consistent with recent observations. Low-frequency internal variability in the ocean model has relatively little impact on the response patterns. Article in Journal/Newspaper Antarc* Antarctic North Atlantic Sea ice DIAL@USL-B (Université Saint-Louis, Bruxelles) Antarctic Norway Journal of Climate 17 22 4316 4329 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
CISM: CECI 1443 |
spellingShingle |
CISM: CECI 1443 Schaeffer, M. Selten, F. Goosse, Hugues Opsteegh, T. On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections |
topic_facet |
CISM: CECI 1443 |
description |
The mean state and variability of deep convection in the ocean influence the North Atlantic climate. Using an ensemble experiment with a coupled atmosphere–ocean–sea ice model, it is shown that cooling and subdued warming areas can occur over the North Atlantic Ocean and adjacent landmasses under global warming. Different ‘‘present-day’’ convection patterns in the Greenland–Iceland–Norway (GIN) Sea result in different future surface- air temperature changes. At higher latitudes, the more effective positive sea ice feedback increases the likelihood of changes in convection causing a regional cooling that is larger than the warming brought about by the enhanced greenhouse effect. The modeled freshening of deep ocean layers in the North Atlantic in a time period preceding a reorganization of GIN Sea convection is consistent with recent observations. Low-frequency internal variability in the ocean model has relatively little impact on the response patterns. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Schaeffer, M. Selten, F. Goosse, Hugues Opsteegh, T. |
author_facet |
Schaeffer, M. Selten, F. Goosse, Hugues Opsteegh, T. |
author_sort |
Schaeffer, M. |
title |
On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections |
title_short |
On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections |
title_full |
On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections |
title_fullStr |
On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections |
title_full_unstemmed |
On the influence of location of high-latitude ocean deep convection and Antarctic sea-ice on climate change projections |
title_sort |
on the influence of location of high-latitude ocean deep convection and antarctic sea-ice on climate change projections |
publisher |
American Meteorological Society |
publishDate |
2004 |
url |
http://hdl.handle.net/2078.1/129620 https://doi.org/10.1175/3174.1 |
geographic |
Antarctic Norway |
geographic_facet |
Antarctic Norway |
genre |
Antarc* Antarctic North Atlantic Sea ice |
genre_facet |
Antarc* Antarctic North Atlantic Sea ice |
op_source |
Journal of Climate, Vol. 17, no.22, p. 4316-4329 (2004) |
op_relation |
boreal:129620 http://hdl.handle.net/2078.1/129620 doi:10.1175/3174.1 urn:ISSN:0894-8755 urn:EISSN:1520-0442 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1175/3174.1 |
container_title |
Journal of Climate |
container_volume |
17 |
container_issue |
22 |
container_start_page |
4316 |
op_container_end_page |
4329 |
_version_ |
1798836523491131392 |