Community Climate System Model/Community Earth System Model (CCSM/CSEM)

The Community Earth System Model (CESM), which grew out of the former Community Climate System Model (CCSM), 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. The CCSM has often been used by decision-makers in creating informed adaptation plans, and the CESM continues to improve on previous capabilities.

The 'Community Earth System Model Science Plan: 2009 - 2015' is also accessible from the CESM website. This Science Plan defines a path to develop model versions that can be used to predict climate change on regional space scales and decadal time scales, to evaluate adaptation and mitigation strategies on decadal to centennial time scales, and to identify possible mechanisms for unintended and dramatic abrupt climate changes.

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  • Modeling tool

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