Community models

These models are available for use on NCAR computers that CISL manages. For documentation, see CESM and WRF on Yellowstone and Janus and other links below. Please contact us if you need assistance.

  • Community Earth System Model (CESM) – A fully coupled, global climate model developed at NCAR. CESM (formerly CCSM) provides state-of-the-art computer simulations of the Earth's past, present, and future climate states.
  • Weather Research & Forecasting (WRF) model – A next-generation mesoscale, numerical weather-prediction system designed to serve both operational forecasting and atmospheric research needs.
  • Nested Regional Climate Model (NRCM) – NRCM combines the strengths of NCAR’s CESM and WRF models into an instrument that will allow for fundamental progress on the understanding and prediction of regional climate variability and change.
  • Whole Atmosphere Community Climate Model (WACCM) – A comprehensive numerical model spanning the range of altitude from the Earth's surface to the thermosphere, developed by a collaboration of NCAR’s High Altitude Observatory, Atmospheric Chemistry Division, and Climate and Global Dynamics division.
  • Atmospheric chemistry models – NCAR’s Atmospheric Chemistry Division supports models for regional and global air quality and chemistry and climate change, including MOZART, CAM-chem, and WACCM.
  • Thermospheric General Circulation Models (TGCMs) – The High Altitude Observatory (HAO) at NCAR has developed a series of numeric simulation models – such as TIEGCM and TIME-GCM – of the Earth's upper atmosphere, including the upper stratosphere, mesosphere, and thermosphere.
  • Data Assimilation Research Testbed (DART) – A community facility for ensemble data assimilation developed and maintained by NCAR’s Data Assimilation Research Section (DAReS).

Community Earth System Model image