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The Community Climate System Model Version 4 (CCSM4) Sea Ice Component and the Challenges and Rewards of Community Modeling

The Community Climate System Model Version 4 (CCSM4) Sea Ice Component and the Challenges and Rewards of Community Modeling
Type: 
Poster
David A. Bailey1, Marika M. Holland2, Mariana Vertenstein3, Elizabeth Hunke4
1National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO, 80307, USA, Phone 303-497-1737, Fax 303-497-1700, dbailey [at] ucar [dot] edu
2National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO, 80307, USA, Phone 303-497-1734, Fax 303-497-1700, mholland [at] ucar [dot] edu
3National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO, 80307, USA, Phone 303-497-1349, mvertens [at] ucar [dot] edu
4Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM, 87545, USA, Phone 505-665-9852, Fax 505-665-5926, eclare [at] lanl [dot] gov

The Community Climate System Model version 4 (CCSM4) is due to be released in late 2009. The new sea ice component of CCSM4 is the Los Alamos Sea Ice Model (CICE) version 4. This sea ice component contains many new numerical and computational enhancements in addition to several new physics options. The new physics options include an explicit melt pond parameterization, a new shortwave radiative transfer scheme, aerosol deposition from the atmosphere and cycling within the sea ice, and the ability to efficiently carry multiple tracers. A basic description of the new model will be provided as well as the impacts of some of the new physics. This work was carried out with the input of community members in the Polar Climate Working Group (PCWG). Aspects of community modeling in general will also be discussed.

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National Science Foundation | Division of Arctic Sciences
National Science Foundation
National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration
International Arctic Systems for Observing the Atmosphere
International Arctic Systems for Observing the Atmosphere
Study of Environmental Arctic Change
Study of Environmental Arctic Change
Arctic System Science Program
Arctic System Science Program
US Arctic Research Commission
US Arctic Research Commission
North Slope Science Initiative
North Slope Science Initiative
International Arctic Science Committee
International Arctic Science Committee
Arctic Ocean Sciences Board
Arctic Ocean Sciences Board
Alaska Ocean Observing System
Alaska Ocean Observing System
Department of Energy
Department of Energy
National Aeronautics and Space Administration
National Aeronautics and Space Administration
World Wildlife Fund
WWF
Association of Polar Early Career Scientists
Association of Polar Early Career Scientists
Bureau of Land Management
Bureau of Land Management
International Study of Arctic Change
International Study of Arctic Change
ArcticNet
ArcticNet
DAMOCLES
Developing Arctic Modeling and Observing Capabilities for Long-term Environmental Studies

This work is supported by the National Science Foundation (NSF) under the ARCUS Cooperative Agreement ARC-0618885. Any opinions, findings, and conclusions or recommendations expressed do not necessarily reflect the views of the NSF.