https://github.com/ncar/cm1

Cloud Model 1 (CM1), a numerical model for idealized studies of the atmosphere
https://github.com/ncar/cm1

cloud model non-hydrostatic numerical nwp prediction weather

Last synced: 3 months ago
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Cloud Model 1 (CM1), a numerical model for idealized studies of the atmosphere

• Host: GitHub
• URL: https://github.com/ncar/cm1
• Owner: NCAR
• License: mit
• Created: 2018-11-20T16:44:25.000Z (over 7 years ago)
• Default Branch: main
• Last Pushed: 2026-02-04T23:06:24.000Z (4 months ago)
• Last Synced: 2026-02-05T11:32:35.858Z (4 months ago)
• Topics: cloud, model, non-hydrostatic, numerical, nwp, prediction, weather
• Language: Fortran
• Homepage: https://www.mmm.ucar.edu/models/cm1
• Size: 71.5 MB
• Stars: 37
• Watchers: 8
• Forks: 15
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          


[![Documentation Status](https://readthedocs.org/projects/cm1/badge/?version=latest)](https://cm1.readthedocs.io/en/latest/?badge=latest)

 

## New announcements:

* January 2025: Slides from a presentation at NCAR HPC Users Group: [CM1 Description, Recent Developments, and Future Directions](https://www2.mmm.ucar.edu/people/bryan/cm1/CM1_NHUG_Slides_Jan2025.pdf)

* 24 March 2024:  A new version of CM1 `cm1r21.1` has been released.  [Download the code here](releases).

* [Here is a sample submission script for NCAR's derecho supercomputer](utils/cm1run_derecho)  **(Last updated:  24 March 2024)**

### [About CM1](docs/index.md)

### [Download](docs/releases.md)

### [New Users](docs/new_users.md)

### [Support Forum](https://forum.mmm.ucar.edu/#cm1-cloud-model-1.137)

### [Research Results](docs/research_results.md)

### [Honors and Awards](docs/honors_and_awards.md)

### [Testing and Evaluation](docs/testing_and_evaluation.md)

### [Utilities](docs/utilities.md)

Send comments and/or questions about this page to:

```

George H. Bryan

NSF National Center for Atmospheric Research

3090 Center Green Drive

Boulder, CO 80301, USA

```

email: gbryan at ucar dot edu



The National Center for Atmospheric Research is sponsored by the U.S. National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the U.S. National Science Foundation.