CESM Models

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.

CESM2 is the most current release and contains support for CMIP6 experiment configurations.

CESM2 Release Versions
CESM2.2.z What's New
CESM2.1.z What's New
CESM1 Release Versions
CESM1.2.z Release Notes
CESM 1.1.z Notable Improvements
CESM 1.0.z Notable Improvements
CESM Model Version Naming Conventions

CESM X.Y.Z - CESM model release versions include three numbers separated by a dot (.) where:

  • X - corresponds to the major release number indicating significant science changes.
  • Y - corresponds to the addition of new infrastructure and new science capabilities for targeted components.
  • Z - corresponds to release bug fixes and machine updates.