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    • CAM

      Public
      Community Atmosphere Model
      1819020315Updated Aug 23, 2026Aug 23, 2026
    • CAM-SIMA

      Public
      Community Atmosphere Model - System for Integrated Modeling of the Atmosphere
      21912316Updated Aug 21, 2026Aug 21, 2026
    • CCPP-enabled Atmospheric Physics
      Fortran
      Apache License 2.0
      3812949Updated Aug 21, 2026Aug 21, 2026
    • CMEPS

      Public
      NUOPC Community Mediator for Earth Prediction Systems
      Fortran
      1063311112Updated Aug 20, 2026Aug 20, 2026
    • CAM-SIMA developer documentation
      3110Updated Aug 20, 2026Aug 20, 2026
    • Python
      12011Updated Aug 19, 2026Aug 19, 2026
    • WW3

      Public
      The latest CESM fork of WaveWatch III
      Fortran
      Other
      672051Updated Aug 19, 2026Aug 19, 2026
    • CTSM

      Public
      Community Terrestrial Systems Model (includes the Community Land Model of CESM)
      Fortran
      Other
      36135295268Updated Aug 19, 2026Aug 19, 2026
    • CISM

      Public
      Community Ice Sheet Model
      Fortran
      GNU Lesser General Public License v3.0
      17132314Updated Aug 18, 2026Aug 18, 2026
    • CDEPS

      Public
      Community Data Models for Earth Prediction Systems
      Fortran
      6831904Updated Aug 13, 2026Aug 13, 2026
    • mizuRoute

      Public
      Reach-based river routing model
      Fortran
      Apache License 2.0
      7358494Updated Aug 10, 2026Aug 10, 2026
    • CICE

      Public
      Development repository for the CICE sea-ice model
      Fortran
      Other
      155200Updated Aug 7, 2026Aug 7, 2026
    • CESM

      Public
      The Community Earth System Model
      Python
      Other
      245485363Updated Aug 5, 2026Aug 5, 2026
    • CESM_CICE

      Public
      This is the CESM/CIME wrapper to the CICE Consortium model. This should work with CICE6 and newer.
      Python
      20320Updated Jul 24, 2026Jul 24, 2026
    • PUMAS

      Public
      Parameterization for Unified Microphysics Across Scales
      Fortran
      241192Updated Jul 21, 2026Jul 21, 2026
    • CESM interface to MOM Ocean Model
      Jupyter Notebook
      216316Updated Jul 15, 2026Jul 15, 2026
    • The interface layer between CESM and TIM (TURBO Infrastructure for MOM6)
      Python
      0000Updated Jul 10, 2026Jul 10, 2026
    • CESM shared code
      Fortran
      Other
      273121Updated Jul 9, 2026Jul 9, 2026
    • Repository for community-accepted Earth System Modeling Standard Names and search tools
      Python
      Other
      179161Updated Jul 8, 2026Jul 8, 2026
    • Contains the stochastic physics pattern generator for the Unified Forecast System
      Fortran
      Other
      56000Updated Jun 29, 2026Jun 29, 2026
    • Community Ice Sheet Model wrapper for CESM
      Fortran
      Other
      1844310Updated May 30, 2026May 30, 2026
    • Icepack

      Public
      Development repository for sea-ice column physics
      Fortran
      Other
      158000Updated May 20, 2026May 20, 2026
    • CESM/CAM interface to modular HEMCO chemistry emissions module
      Fortran
      9140Updated Apr 14, 2026Apr 14, 2026
    • ALI-ARMS

      Public
      Accelerated Lambda Iterations for Atmospheric Radiation and Molecular Spectra
      C
      6000Updated Mar 31, 2026Mar 31, 2026
    • CARMA

      Public
      Stand-alone tests for the CARMA aerosol model
      Jupyter Notebook
      Apache License 2.0
      14820Updated Mar 26, 2026Mar 26, 2026
    • CARMA base source code
      Fortran
      Apache License 2.0
      12310Updated Mar 26, 2026Mar 26, 2026
    • Python
      12020Updated Mar 10, 2026Mar 10, 2026
    • FMS

      Public
      CESM fork of FMS
      Fortran
      GNU Lesser General Public License v3.0
      162011Updated Mar 10, 2026Mar 10, 2026
    • MOSART

      Public
      Model for Scale Adaptive River Transport, Mosart, part of the Community Earth System Model
      Fortran
      Other
      3512113Updated Feb 20, 2026Feb 20, 2026
    • Chemistry preprocessor used by CAM-Chem and WACCM
      Fortran
      2000Updated Sep 12, 2025Sep 12, 2025
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