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- 1b492235-f1fa-47d9-aae5-278812d29e7d definition "The Community Climate Model (CCM) was created by NCAR in 1983 as a freely available global atmosphere model for use by the wider climate research community. The formulation of the CCM has steadily improved over the past two decades, computers powerful enough to run the model have become relatively inexpensive and widely available, and usage of the model has become widespread in the university community, and at some national laboratories. A limitation of the original CCM was that it did not include models of the global ocean and sea ice. Accordingly, in 1994, NCAR scientists submitted a plan to National Science Foundation (NSF) to develop and use a Climate System Model (CSM) that was to include models of the atmosphere, land surface, ocean, and sea ice. These components were to be coupled without resorting to any 'flux adjustments.' The plan was to focus initially on the physical aspects of the climate system, and then in a subsequent version to improve biogeochemistry and coupling to the upper atmosphere. The first phase of this project was the model development by the NCAR staff, after which the model and associated data sets were to be made available to the scientific community. In addition, a new governance structure was promised, in which the interested scientific community would be given a fair opportunity to participate in all aspects of the CSM. NSF approved the plan, and model development began immediately. In May 1996, the first CSM Workshop was held in Breckenridge, Colorado. At this workshop the CSM components and the results of an early equilibrium climate simulation were presented. Working groups began to form, and the nature of future CSM governance was discussed. At the final plenary session of the workshop, the proposed management structure was discussed, modified, and adopted. At that point, the second phase of CSM, including full participation of the scientific community, had begun. The period since this 1996 workshop has been a time of substantial organizational progress. A Scientific Steering Committee (SSC) has been formed to lead the CSM activity, working groups have been producing useful output, and the previously existing Climate Modeling, Analysis and Prediction (CMAP) Advisory Council has been reorganized as the CSM Advisory Board (CAB). In addition to support from NSF, interest in the CSM from other agencies, notably the Department of Energy (DOE) and NASA, has developed. While working toward the second version of CSM, we believed that it was also time to recognize the community of users and sponsors by changing the name of the model to the Community Climate System Model (CCSM)." @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d id "1653081" @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d path_id 0a184cdc-c074-4946-90a6-02f03c686341 @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d path_id 5cd7da77-cb95-40aa-8775-b6df68e0aa63 @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d path_id f3261de5-34c1-4980-af22-f9d7e7206d12 @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d path_label "Models" @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d path_label "Other" @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d path_label "Platforms" @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d prefLabel "CESM" @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d reference "https://www.cesm.ucar.edu/" @default.
- 1b492235-f1fa-47d9-aae5-278812d29e7d tag "Platforms" @default.