Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model
A series of sensitivity experiments has been performed with thecoupled regional atmosphere-ocean-ice model HIRHAM-NAOSIM in order toassess the importance of uncertainties in the physical processdescriptions for the simulation of Arctic sea ice with a fully coupledmodel. The significance of the follo...
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ftawi:oai:epic.awi.de:16770 2023-05-15T13:10:42+02:00 Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model Dorn, Wolfgang Dethloff, Klaus Rinke, Annette Gerdes, Rüdiger 2007 https://epic.awi.de/id/eprint/16770/ https://hdl.handle.net/10013/epic.26600 unknown Dorn, W. orcid:0000-0002-2071-9472 , Dethloff, K. , Rinke, A. orcid:0000-0002-6685-9219 and Gerdes, R. (2007) Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model , EGU General Assembly 2007, 1520 April 2007, Vienna, Austria. . hdl:10013/epic.26600 EPIC3EGU General Assembly 2007, 1520 April 2007, Vienna, Austria. Conference notRev 2007 ftawi 2021-12-24T15:31:51Z A series of sensitivity experiments has been performed with thecoupled regional atmosphere-ocean-ice model HIRHAM-NAOSIM in order toassess the importance of uncertainties in the physical processdescriptions for the simulation of Arctic sea ice with a fully coupledmodel. The significance of the following physical parameterizationshas been addressed: snow and ice albedo, snow cover, cloud cover,ocean heat transfer, lateral freezing of sea ice as well as the heatflux treatment in the ice growth scheme at large. It has been foundthat the simulation of Arctic summer sea ice responds very sensitivelyto the parameterization of snow and ice albedo but also to thetreatment of ice growth. Large sensitivities also arise with respectto the parameterizations of cloud cover, snow cover, and ocean heattransfer, but the response is not as strong as compared to the albedoand ice growth schemes. Arctic winter sea ice is only little affectedby all these parameterizations, but the parameterization of lateralfreezing controls the rate of increase in ice thickness, whichsignificantly influences summer sea ice conditions in multi-yearsimulations. Uncertainties in the simulation of the atmospheric heatfluxes and the atmospheric circulation hamper the accurate simulationof Arctic sea ice and may decrease the overall model performance dueto feedback effects. Conference Object albedo Arctic Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
A series of sensitivity experiments has been performed with thecoupled regional atmosphere-ocean-ice model HIRHAM-NAOSIM in order toassess the importance of uncertainties in the physical processdescriptions for the simulation of Arctic sea ice with a fully coupledmodel. The significance of the following physical parameterizationshas been addressed: snow and ice albedo, snow cover, cloud cover,ocean heat transfer, lateral freezing of sea ice as well as the heatflux treatment in the ice growth scheme at large. It has been foundthat the simulation of Arctic summer sea ice responds very sensitivelyto the parameterization of snow and ice albedo but also to thetreatment of ice growth. Large sensitivities also arise with respectto the parameterizations of cloud cover, snow cover, and ocean heattransfer, but the response is not as strong as compared to the albedoand ice growth schemes. Arctic winter sea ice is only little affectedby all these parameterizations, but the parameterization of lateralfreezing controls the rate of increase in ice thickness, whichsignificantly influences summer sea ice conditions in multi-yearsimulations. Uncertainties in the simulation of the atmospheric heatfluxes and the atmospheric circulation hamper the accurate simulationof Arctic sea ice and may decrease the overall model performance dueto feedback effects. |
format |
Conference Object |
author |
Dorn, Wolfgang Dethloff, Klaus Rinke, Annette Gerdes, Rüdiger |
spellingShingle |
Dorn, Wolfgang Dethloff, Klaus Rinke, Annette Gerdes, Rüdiger Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model |
author_facet |
Dorn, Wolfgang Dethloff, Klaus Rinke, Annette Gerdes, Rüdiger |
author_sort |
Dorn, Wolfgang |
title |
Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model |
title_short |
Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model |
title_full |
Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model |
title_fullStr |
Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model |
title_full_unstemmed |
Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model |
title_sort |
sensitivities and uncertainties in the simulation of arctic sea ice with a coupled regional atmosphere-ocean-ice model |
publishDate |
2007 |
url |
https://epic.awi.de/id/eprint/16770/ https://hdl.handle.net/10013/epic.26600 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Arctic Sea ice |
genre_facet |
albedo Arctic Arctic Sea ice |
op_source |
EPIC3EGU General Assembly 2007, 1520 April 2007, Vienna, Austria. |
op_relation |
Dorn, W. orcid:0000-0002-2071-9472 , Dethloff, K. , Rinke, A. orcid:0000-0002-6685-9219 and Gerdes, R. (2007) Sensitivities and uncertainties in the simulation of Arctic sea ice with a coupled regional atmosphere-ocean-ice model , EGU General Assembly 2007, 1520 April 2007, Vienna, Austria. . hdl:10013/epic.26600 |
_version_ |
1766239751062421504 |