Results from the implementation of the elastic viscous plastic sea ice rheology in HadCM3

International audience We present results of an implementation of the Elastic Viscous Plastic (EVP) sea ice dynamics scheme into the Hadley Centre coupled ocean-atmosphere climate model HadCM3. Although the large-scale simulation of sea ice in HadCM3 is quite good with this model, the lack of a full...

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Bibliographic Details
Main Authors: Connolley, W., Keen, A., Mclaren, A.
Other Authors: British Antarctic Survey (BAS), Natural Environment Research Council (NERC), Met Office Hadley Centre (MOHC), United Kingdom Met Office Exeter
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2006
Subjects:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
Sea ice
Online Access:https://hal.science/hal-00298398
https://hal.science/hal-00298398/document
https://hal.science/hal-00298398/file/osd-3-777-2006.pdf
Description
Summary:International audience We present results of an implementation of the Elastic Viscous Plastic (EVP) sea ice dynamics scheme into the Hadley Centre coupled ocean-atmosphere climate model HadCM3. Although the large-scale simulation of sea ice in HadCM3 is quite good with this model, the lack of a full dynamical model leads to errors in the detailed representation of sea ice and limits our confidence in its future predictions. We find that introducing the EVP scheme results in a worse initial simulation of the sea ice. This paper documents various improvements made to improve the simulation, resulting in a sea ice simulation that is better than the original HadCM3 scheme overall. Importantly, it is more physically based and provides a more solid foundation for future improvement. We then consider the interannual variability of the sea ice in the new model and demonstrate improvements over the HadCM3 simulation.

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