CESM Models: Community Sea Ice Model (CSIM)
The Community Sea Ice Model (CSIM) is a dynamic-thermodynamic model that includes a subgrid-scale ice thickness distribution. This model is closely related to the Community Ice CodE (CICE) version 3.1. It uses the energy conserving thermodynamics of Bitz and Lipscomb (1999), with four ice layers and one snow layer in each thickness category. The ice dynamics utilizes the elastic-viscous-plastic rheology of Hunke and Dukowicz (1997). Subgrid-scale ridging and rafting is parameterized according to Rothrock (1975) and Thorndike et al. (1975). Horizontal advection is calculated via the new incremental remapping scheme of Lipscomb and Hunke (2004). A more complete model description can be found in the documentation.
CSIM serves as the sea ice component of the Community Climate System Model version 3.0 (CCSM). It is the result of a community effort to develop a portable, efficient sea ice model that can be run coupled in a global climate model or uncoupled as a stand-alone ice model.
The Community Climate System Model (CCSM) is a fully-coupled, global climate model. The following links point to the various public releases of CCSM -- each release includes the complete collection of component model source code, documentation, and input data.
- CCSM3.0 (Released June 2004) [release]
- CCSM2.0.1 (Released October 2002) [release]
- Other [previous releases]
The Community Sea Ice Model (CSIM) is the sea ice component of CCSM that will run uncoupled from the other CCSM components. The physics in the uncoupled ice model are identical to those in the ice model used in the fully coupled system. This release includes the CSIM source code, documentation, input and forcing data (released Sept 2004). [CSIM5.0 release]
The Community Earth System Model (CESM) is a fully-coupled, global climate model that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states.
CESM is sponsored by the National Science Foundation (NSF) and the U.S. Department of Energy (DOE). Administration of the CESM is maintained by the Climate and Global Dynamics Division (CGD) at the National Center for Atmospheric Research (NCAR).