Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations
Drift is a prominent parameter characterizing the Arctic sea ice cover that has a deep impact on the climate system. Hence it is a key issue to both the remote sensing as well as the modeling community, to provide reliable sea ice drift fields. This study focuses on the comparison of sea ice drift r...
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ftoceanrep:oai:oceanrep.geomar.de:59744 2024-02-04T09:56:32+01:00 Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations Martin, Torge Gerdes, Rüdiger 2007-04-23 text https://oceanrep.geomar.de/id/eprint/59744/ https://oceanrep.geomar.de/id/eprint/59744/1/Martin%20Gerdes%20JGR.pdf https://doi.org/10.1029/2006JC003617 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/59744/1/Martin%20Gerdes%20JGR.pdf Martin, T. and Gerdes, R. (2007) Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations. Journal of Geophysical Research: Oceans, 112 . Art.Nr. C04S10. DOI 10.1029/2006JC003617 <https://doi.org/10.1029/2006JC003617>. doi:10.1029/2006JC003617 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2007 ftoceanrep https://doi.org/10.1029/2006JC003617 2024-01-08T00:22:41Z Drift is a prominent parameter characterizing the Arctic sea ice cover that has a deep impact on the climate system. Hence it is a key issue to both the remote sensing as well as the modeling community, to provide reliable sea ice drift fields. This study focuses on the comparison of sea ice drift results from different sea ice‐ocean coupled models and the validation with observational data in the period 1979–2001. The models all take part in the Arctic Ocean Model Intercomparison Project (AOMIP) and the observations are mainly based on satellite imagery. According to speed distributions, one class of models has a mode at drift speeds around 3 cm s −1 and a short tail toward higher speeds. Another class shows a more even frequency distribution with large probability of drift speeds of 10 to 20 cm s −1 . Observations clearly agree better with the first class of model results. Reasons for these differences are manifold and lie in discrepancies of wind stress forcing as well as sea ice model characteristics and sea ice‐ocean coupling. Moreover, we investigated the drift patterns of anticyclonic and cyclonic wind‐driven regimes. The models are capable of producing realistic drift pattern variability. The winter of 1994/1995 stands out because of its maximum in Fram Strait ice export. Although export estimates of some models agree with observations, the corresponding inner Arctic drift pattern is not reproduced. The reason for this is found in the wind‐forcing as well as in differences in ocean velocities. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Fram Strait Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Journal of Geophysical Research: Oceans 112 C4 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Drift is a prominent parameter characterizing the Arctic sea ice cover that has a deep impact on the climate system. Hence it is a key issue to both the remote sensing as well as the modeling community, to provide reliable sea ice drift fields. This study focuses on the comparison of sea ice drift results from different sea ice‐ocean coupled models and the validation with observational data in the period 1979–2001. The models all take part in the Arctic Ocean Model Intercomparison Project (AOMIP) and the observations are mainly based on satellite imagery. According to speed distributions, one class of models has a mode at drift speeds around 3 cm s −1 and a short tail toward higher speeds. Another class shows a more even frequency distribution with large probability of drift speeds of 10 to 20 cm s −1 . Observations clearly agree better with the first class of model results. Reasons for these differences are manifold and lie in discrepancies of wind stress forcing as well as sea ice model characteristics and sea ice‐ocean coupling. Moreover, we investigated the drift patterns of anticyclonic and cyclonic wind‐driven regimes. The models are capable of producing realistic drift pattern variability. The winter of 1994/1995 stands out because of its maximum in Fram Strait ice export. Although export estimates of some models agree with observations, the corresponding inner Arctic drift pattern is not reproduced. The reason for this is found in the wind‐forcing as well as in differences in ocean velocities. |
format |
Article in Journal/Newspaper |
author |
Martin, Torge Gerdes, Rüdiger |
spellingShingle |
Martin, Torge Gerdes, Rüdiger Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations |
author_facet |
Martin, Torge Gerdes, Rüdiger |
author_sort |
Martin, Torge |
title |
Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations |
title_short |
Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations |
title_full |
Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations |
title_fullStr |
Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations |
title_full_unstemmed |
Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations |
title_sort |
sea ice drift variability in arctic ocean model intercomparison project models and observations |
publisher |
AGU (American Geophysical Union) |
publishDate |
2007 |
url |
https://oceanrep.geomar.de/id/eprint/59744/ https://oceanrep.geomar.de/id/eprint/59744/1/Martin%20Gerdes%20JGR.pdf https://doi.org/10.1029/2006JC003617 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Fram Strait Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Fram Strait Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/59744/1/Martin%20Gerdes%20JGR.pdf Martin, T. and Gerdes, R. (2007) Sea ice drift variability in Arctic Ocean Model Intercomparison Project models and observations. Journal of Geophysical Research: Oceans, 112 . Art.Nr. C04S10. DOI 10.1029/2006JC003617 <https://doi.org/10.1029/2006JC003617>. doi:10.1029/2006JC003617 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2006JC003617 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
112 |
container_issue |
C4 |
_version_ |
1789960999228407808 |