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    • Community Ice Sheet Model wrapper for CESM
      Fortran
      Other
      174458Updated Apr 2, 2026Apr 2, 2026
    • CESM interface to MOM Ocean Model
      Jupyter Notebook
      216287Updated Apr 2, 2026Apr 2, 2026
    • CTSM

      Public
      Community Terrestrial Systems Model (includes the Community Land Model of CESM)
      Fortran
      Other
      35334693055Updated Apr 2, 2026Apr 2, 2026
    • CESM

      Public
      The Community Earth System Model
      Python
      Other
      236455333Updated Apr 2, 2026Apr 2, 2026
    • CAM-SIMA

      Public
      Community Atmosphere Model - System for Integrated Modeling of the Atmosphere
      1891128Updated Apr 2, 2026Apr 2, 2026
    • CAM

      Public
      Community Atmosphere Model
      1758720214Updated Apr 2, 2026Apr 2, 2026
    • CISM

      Public
      Community Ice Sheet Model
      Fortran
      GNU Lesser General Public License v3.0
      15122212Updated Apr 1, 2026Apr 1, 2026
    • CICE

      Public
      Development repository for the CICE sea-ice model
      Fortran
      Other
      152200Updated Mar 31, 2026Mar 31, 2026
    • ALI-ARMS

      Public
      Accelerated Lambda Iterations for Atmospheric Radiation and Molecular Spectra
      C
      5000Updated Mar 31, 2026Mar 31, 2026
    • CCPP-enabled Atmospheric Physics
      Fortran
      Apache License 2.0
      33127911Updated Mar 30, 2026Mar 30, 2026
    • CDEPS

      Public
      Community Data Models for Earth Prediction Systems
      Fortran
      6324733Updated Mar 27, 2026Mar 27, 2026
    • CMEPS

      Public
      NUOPC Community Mediator for Earth Prediction Systems
      Fortran
      9630999Updated Mar 27, 2026Mar 27, 2026
    • CARMA

      Public
      Stand-alone tests for the CARMA aerosol model
      Jupyter Notebook
      Apache License 2.0
      12620Updated Mar 26, 2026Mar 26, 2026
    • CARMA base source code
      Fortran
      Apache License 2.0
      11210Updated Mar 26, 2026Mar 26, 2026
    • mizuRoute

      Public
      Reach-based river routing model
      Fortran
      Apache License 2.0
      7154433Updated Mar 25, 2026Mar 25, 2026
    • CESM_CICE

      Public
      This is the CESM/CIME wrapper to the CICE Consortium model. This should work with CICE6 and newer.
      Python
      19230Updated Mar 24, 2026Mar 24, 2026
    • CAM-SIMA developer documentation
      3100Updated Mar 23, 2026Mar 23, 2026
    • Repository for community-accepted Earth System Modeling Standard Names and search tools
      Python
      Other
      177222Updated Mar 16, 2026Mar 16, 2026
    • Python
      11020Updated Mar 10, 2026Mar 10, 2026
    • FMS

      Public
      CESM fork of FMS
      Fortran
      GNU Lesser General Public License v3.0
      158001Updated Mar 10, 2026Mar 10, 2026
    • CESM shared code
      Fortran
      Other
      272101Updated Feb 25, 2026Feb 25, 2026
    • MOSART

      Public
      Model for Scale Adaptive River Transport, Mosart, part of the Community Earth System Model
      Fortran
      Other
      3412113Updated Feb 20, 2026Feb 20, 2026
    • Icepack

      Public
      Development repository for sea-ice column physics
      Fortran
      Other
      156000Updated Feb 11, 2026Feb 11, 2026
    • Python
      11020Updated Jan 22, 2026Jan 22, 2026
    • WW3

      Public
      The latest CESM fork of WaveWatch III
      Fortran
      Other
      653050Updated Jan 22, 2026Jan 22, 2026
    • Contains the stochastic physics pattern generator for the Unified Forecast System
      Fortran
      Other
      52000Updated Nov 20, 2025Nov 20, 2025
    • Chemistry preprocessor used by CAM-Chem and WACCM
      Fortran
      2000Updated Sep 12, 2025Sep 12, 2025
    • RTM

      Public
      River Transport Model, RTM, part of the Community Earth System Model
      Fortran
      Other
      14250Updated Aug 1, 2025Aug 1, 2025
    • ctsm-docs

      Public
      Builds of the CTSM documentation
      Shell
      7300Updated May 27, 2025May 27, 2025
    • Pre- and post-processing tools for the Community Ice Sheet Model
      Python
      Apache License 2.0
      2000Updated May 22, 2025May 22, 2025
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