Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97
In order to investigate the causes of sea ice volume variations, two simulations have been performed using two different sea ice-ocean models driven by NCEP-NCAR reanalysis data over the period 1955-97. In both models, the largest changes in ice thickness occur in the central Arctic. The anomalous e...
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:40292 2024-05-12T07:59:10+00:00 Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 Goosse, Hugues Gerdes, R Kauker, F Koberle, C UCL - SC/PHYS - Département de physique UCL - SST/ELI/ELIC - Earth & Climate 2004 http://hdl.handle.net/2078.1/40292 https://doi.org/10.1175/1520-0442(2004)017<1294:IOTEBT>2.0.CO;2 eng eng Amer Meteorological Soc boreal:40292 http://hdl.handle.net/2078.1/40292 doi:10.1175/1520-0442(2004)017<1294:IOTEBT>2.0.CO;2 urn:ISSN:0894-8755 urn:EISSN:1520-0442 Journal of Climate, Vol. 17, no. 6, p. 1294-1305 (2004) info:eu-repo/semantics/article 2004 ftunistlouisbrus https://doi.org/10.1175/1520-0442(2004)017<1294:IOTEBT>2.0.CO;2 2024-04-18T18:14:53Z In order to investigate the causes of sea ice volume variations, two simulations have been performed using two different sea ice-ocean models driven by NCEP-NCAR reanalysis data over the period 1955-97. In both models, the largest changes in ice thickness occur in the central Arctic. The anomalous exchanges of sea ice, air, and water between the North Atlantic and the Arctic play a large role in explaining ice volume variations. In particular, the anomaly of oceanic heat transport between Iceland and Norway could alone explain a large part of the simulated ice volume changes. The time evolution of the ice volume appears well correlated with the low-frequency variations of the North Atlantic Oscillation (NAO). Nevertheless, the link between NAO and ice volume changes could operate through different mechanisms between the first and second half of the simulation. The influence of the NAO on the meridional heat transport in the North Atlantic and in the Nordic Seas hold during the whole simulation. Besides, the link between NAO and Fram Strait ice export, which is another important source of ice volume variability, is valid only for the second half of the simulation. Article in Journal/Newspaper Arctic Fram Strait Iceland Nordic Seas North Atlantic North Atlantic oscillation Sea ice DIAL@USL-B (Université Saint-Louis, Bruxelles) Arctic Norway |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
description |
In order to investigate the causes of sea ice volume variations, two simulations have been performed using two different sea ice-ocean models driven by NCEP-NCAR reanalysis data over the period 1955-97. In both models, the largest changes in ice thickness occur in the central Arctic. The anomalous exchanges of sea ice, air, and water between the North Atlantic and the Arctic play a large role in explaining ice volume variations. In particular, the anomaly of oceanic heat transport between Iceland and Norway could alone explain a large part of the simulated ice volume changes. The time evolution of the ice volume appears well correlated with the low-frequency variations of the North Atlantic Oscillation (NAO). Nevertheless, the link between NAO and ice volume changes could operate through different mechanisms between the first and second half of the simulation. The influence of the NAO on the meridional heat transport in the North Atlantic and in the Nordic Seas hold during the whole simulation. Besides, the link between NAO and Fram Strait ice export, which is another important source of ice volume variability, is valid only for the second half of the simulation. |
author2 |
UCL - SC/PHYS - Département de physique UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Goosse, Hugues Gerdes, R Kauker, F Koberle, C |
spellingShingle |
Goosse, Hugues Gerdes, R Kauker, F Koberle, C Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 |
author_facet |
Goosse, Hugues Gerdes, R Kauker, F Koberle, C |
author_sort |
Goosse, Hugues |
title |
Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 |
title_short |
Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 |
title_full |
Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 |
title_fullStr |
Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 |
title_full_unstemmed |
Influence of the exchanges between the Atlantic and the Arctic on sea ice volume variations during the period 1955-97 |
title_sort |
influence of the exchanges between the atlantic and the arctic on sea ice volume variations during the period 1955-97 |
publisher |
Amer Meteorological Soc |
publishDate |
2004 |
url |
http://hdl.handle.net/2078.1/40292 https://doi.org/10.1175/1520-0442(2004)017<1294:IOTEBT>2.0.CO;2 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Fram Strait Iceland Nordic Seas North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Fram Strait Iceland Nordic Seas North Atlantic North Atlantic oscillation Sea ice |
op_source |
Journal of Climate, Vol. 17, no. 6, p. 1294-1305 (2004) |
op_relation |
boreal:40292 http://hdl.handle.net/2078.1/40292 doi:10.1175/1520-0442(2004)017<1294:IOTEBT>2.0.CO;2 urn:ISSN:0894-8755 urn:EISSN:1520-0442 |
op_doi |
https://doi.org/10.1175/1520-0442(2004)017<1294:IOTEBT>2.0.CO;2 |
_version_ |
1798840173006422016 |