Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model
Simulated sea ice thickness in the ORCA2-LIM coupled sea ice--ocean model is compared with thicknesses from the ASPeCt (Antarctic Sea Ice Processes and Climate) data base.We find a qualitative agreement of the large-scale patterns of ice thickness distribution.Regional averages for the various secto...
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ftawi:oai:epic.awi.de:10068 2023-09-05T13:12:48+02:00 Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model Timmermann, Ralph Worby, A. Goosse, H. Fichefet, T. 2004 application/pdf https://epic.awi.de/id/eprint/10068/ https://epic.awi.de/id/eprint/10068/1/Tim2004a.pdf https://doi.org/10.1029/2003JC002242 https://hdl.handle.net/10013/epic.20562 https://hdl.handle.net/10013/epic.20562.d001 unknown https://epic.awi.de/id/eprint/10068/1/Tim2004a.pdf https://hdl.handle.net/10013/epic.20562.d001 Timmermann, R. , Worby, A. , Goosse, H. and Fichefet, T. (2004) Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model , Journal of geophysical research, 109, C07017 . doi:10.1029/2003JC002242 <https://doi.org/10.1029/2003JC002242> , hdl:10013/epic.20562 EPIC3Journal of geophysical research, 109, C07017, ISSN: 0148-0227 Article isiRev 2004 ftawi https://doi.org/10.1029/2003JC002242 2023-08-22T19:48:27Z Simulated sea ice thickness in the ORCA2-LIM coupled sea ice--ocean model is compared with thicknesses from the ASPeCt (Antarctic Sea Ice Processes and Climate) data base.We find a qualitative agreement of the large-scale patterns of ice thickness distribution.Regional averages for the various sectors of the Southern Ocean yield a very good correspondence between observations and model data.Exceptions are the eastern Bellingshausen and northwestern Weddell Seas.A poor representation of the Antarctic Peninsula in the atmospheric forcing data and the related overestimation of westerly winds in this region lead to a spurious accumulation of sea ice on the western side of the Peninsula, and to an underestimation of sea ice coverage on the eastern side.Since the spatial scale of observations is not comparable to the size of a model grid cell, there is little agreement between individual observations and the corresponding model ice thicknesses.A model analysis of the seasonal and interannual variability indicates that the ASPeCt data underestimate the climatological ice thickness in the central and southern Weddell Sea and the eastern Ross Sea by up to 1 m.Due to a winter bias in the observations, an overestimation of similar magnitude is expected in the Bellingshausen Sea.Ice thickness data in most of the Indo-Pacific sector appear to be representative for the long-term climatology.A model estimate of the bias is used to compute a revised distribution of climatological sea ice thickness. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ross Sea Sea ice Southern Ocean Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Antarctic Peninsula Pacific Ross Sea Southern Ocean The Antarctic Weddell Weddell Sea Journal of Geophysical Research 109 C7 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Simulated sea ice thickness in the ORCA2-LIM coupled sea ice--ocean model is compared with thicknesses from the ASPeCt (Antarctic Sea Ice Processes and Climate) data base.We find a qualitative agreement of the large-scale patterns of ice thickness distribution.Regional averages for the various sectors of the Southern Ocean yield a very good correspondence between observations and model data.Exceptions are the eastern Bellingshausen and northwestern Weddell Seas.A poor representation of the Antarctic Peninsula in the atmospheric forcing data and the related overestimation of westerly winds in this region lead to a spurious accumulation of sea ice on the western side of the Peninsula, and to an underestimation of sea ice coverage on the eastern side.Since the spatial scale of observations is not comparable to the size of a model grid cell, there is little agreement between individual observations and the corresponding model ice thicknesses.A model analysis of the seasonal and interannual variability indicates that the ASPeCt data underestimate the climatological ice thickness in the central and southern Weddell Sea and the eastern Ross Sea by up to 1 m.Due to a winter bias in the observations, an overestimation of similar magnitude is expected in the Bellingshausen Sea.Ice thickness data in most of the Indo-Pacific sector appear to be representative for the long-term climatology.A model estimate of the bias is used to compute a revised distribution of climatological sea ice thickness. |
format |
Article in Journal/Newspaper |
author |
Timmermann, Ralph Worby, A. Goosse, H. Fichefet, T. |
spellingShingle |
Timmermann, Ralph Worby, A. Goosse, H. Fichefet, T. Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
author_facet |
Timmermann, Ralph Worby, A. Goosse, H. Fichefet, T. |
author_sort |
Timmermann, Ralph |
title |
Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
title_short |
Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
title_full |
Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
title_fullStr |
Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
title_full_unstemmed |
Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
title_sort |
utilizing the aspect sea ice thickess dataset to evaluate a global coupled sea ice-ocean model |
publishDate |
2004 |
url |
https://epic.awi.de/id/eprint/10068/ https://epic.awi.de/id/eprint/10068/1/Tim2004a.pdf https://doi.org/10.1029/2003JC002242 https://hdl.handle.net/10013/epic.20562 https://hdl.handle.net/10013/epic.20562.d001 |
geographic |
Antarctic Antarctic Peninsula Pacific Ross Sea Southern Ocean The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Pacific Ross Sea Southern Ocean The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Ross Sea Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ross Sea Sea ice Southern Ocean Weddell Sea |
op_source |
EPIC3Journal of geophysical research, 109, C07017, ISSN: 0148-0227 |
op_relation |
https://epic.awi.de/id/eprint/10068/1/Tim2004a.pdf https://hdl.handle.net/10013/epic.20562.d001 Timmermann, R. , Worby, A. , Goosse, H. and Fichefet, T. (2004) Utilizing the ASPeCt sea ice thickess dataset to evaluate a global coupled sea ice-ocean model , Journal of geophysical research, 109, C07017 . doi:10.1029/2003JC002242 <https://doi.org/10.1029/2003JC002242> , hdl:10013/epic.20562 |
op_doi |
https://doi.org/10.1029/2003JC002242 |
container_title |
Journal of Geophysical Research |
container_volume |
109 |
container_issue |
C7 |
_version_ |
1776201839322071040 |