Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing
The interannual variability of the sea ice transport through Fram Strait is simulated with a dynamic‐thermodynamic sea ice model. Forcing with daily varying wind fields for the 7‐year period 1986–1992 causes a high variability of sea ice drift on timescales from days to years. Annual means of simula...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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AGU (American Geophysical Union)
1998
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Online Access: | https://oceanrep.geomar.de/id/eprint/2491/ https://oceanrep.geomar.de/id/eprint/2491/1/Harder_et_al-1998-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://doi.org/10.1029/97JC02472 |
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ftoceanrep:oai:oceanrep.geomar.de:2491 2023-05-15T16:18:03+02:00 Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing Harder, Markus Lemke, Peter Hilmer, Michael 1998 text https://oceanrep.geomar.de/id/eprint/2491/ https://oceanrep.geomar.de/id/eprint/2491/1/Harder_et_al-1998-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://doi.org/10.1029/97JC02472 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/2491/1/Harder_et_al-1998-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf Harder, M., Lemke, P. and Hilmer, M. (1998) Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing . Open Access Journal of Geophysical Research: Oceans, 103 (C3). pp. 5595-5606. DOI 10.1029/97JC02472 <https://doi.org/10.1029/97JC02472>. doi:10.1029/97JC02472 info:eu-repo/semantics/openAccess Article PeerReviewed 1998 ftoceanrep https://doi.org/10.1029/97JC02472 2023-04-07T14:46:00Z The interannual variability of the sea ice transport through Fram Strait is simulated with a dynamic‐thermodynamic sea ice model. Forcing with daily varying wind fields for the 7‐year period 1986–1992 causes a high variability of sea ice drift on timescales from days to years. Annual means of simulated ice transport through Pram Strait differ up to a factor of 2. Additional sensitivity studies investigate the response of sea ice transports to variations of the prescribed atmospheric and oceanic forcing. Wind speed, ocean current speed, air temperature, and precipitation rate are systematically varied over a wide range. The model predicts an almost linear relation of ice transport with wind speed and ocean current, a strong, nonlinear relation with air temperature, and a rather small sensitivity to changes in precipitation. The results show that the interannual variability of wind forcing causes considerable variations of sea ice export through Fram Strait. The fluxes of freshwater and negative latent heat associated with the sea ice transport can significantly affect the ocean circulation in the Greenland Sea and in the North Atlantic. This shows how variations of the ocean circulation are coupled to the variability of the atmosphere by the mechanism of sea ice advection. To adequately represent these important interactions in the coupled system atmosphere‐cryosphere‐ocean, both the dynamics and the thermodynamics of sea ice must be included in climate models. Article in Journal/Newspaper Fram Strait Greenland Greenland Sea North Atlantic Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Greenland Journal of Geophysical Research: Oceans 103 C3 5595 5606 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The interannual variability of the sea ice transport through Fram Strait is simulated with a dynamic‐thermodynamic sea ice model. Forcing with daily varying wind fields for the 7‐year period 1986–1992 causes a high variability of sea ice drift on timescales from days to years. Annual means of simulated ice transport through Pram Strait differ up to a factor of 2. Additional sensitivity studies investigate the response of sea ice transports to variations of the prescribed atmospheric and oceanic forcing. Wind speed, ocean current speed, air temperature, and precipitation rate are systematically varied over a wide range. The model predicts an almost linear relation of ice transport with wind speed and ocean current, a strong, nonlinear relation with air temperature, and a rather small sensitivity to changes in precipitation. The results show that the interannual variability of wind forcing causes considerable variations of sea ice export through Fram Strait. The fluxes of freshwater and negative latent heat associated with the sea ice transport can significantly affect the ocean circulation in the Greenland Sea and in the North Atlantic. This shows how variations of the ocean circulation are coupled to the variability of the atmosphere by the mechanism of sea ice advection. To adequately represent these important interactions in the coupled system atmosphere‐cryosphere‐ocean, both the dynamics and the thermodynamics of sea ice must be included in climate models. |
format |
Article in Journal/Newspaper |
author |
Harder, Markus Lemke, Peter Hilmer, Michael |
spellingShingle |
Harder, Markus Lemke, Peter Hilmer, Michael Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing |
author_facet |
Harder, Markus Lemke, Peter Hilmer, Michael |
author_sort |
Harder, Markus |
title |
Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing |
title_short |
Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing |
title_full |
Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing |
title_fullStr |
Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing |
title_full_unstemmed |
Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing |
title_sort |
simulation of sea ice transport through fram strait: natural variability and sensitivity to forcing |
publisher |
AGU (American Geophysical Union) |
publishDate |
1998 |
url |
https://oceanrep.geomar.de/id/eprint/2491/ https://oceanrep.geomar.de/id/eprint/2491/1/Harder_et_al-1998-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://doi.org/10.1029/97JC02472 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Fram Strait Greenland Greenland Sea North Atlantic Sea ice |
genre_facet |
Fram Strait Greenland Greenland Sea North Atlantic Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/2491/1/Harder_et_al-1998-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf Harder, M., Lemke, P. and Hilmer, M. (1998) Simulation of sea ice transport through Fram Strait: Natural variability and sensitivity to forcing . Open Access Journal of Geophysical Research: Oceans, 103 (C3). pp. 5595-5606. DOI 10.1029/97JC02472 <https://doi.org/10.1029/97JC02472>. doi:10.1029/97JC02472 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/97JC02472 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
103 |
container_issue |
C3 |
container_start_page |
5595 |
op_container_end_page |
5606 |
_version_ |
1766004121933971456 |