PCMDI Published Content
Published August 14, 2026 | Version 3.15.3
Software Open

The Climate Model Output Rewriter (CMOR)

Authors/Creators

  • 1. Program for Climate Model Diagnosis and Intercomparison (PCMDI)
  • 2. Program for Climate Model Diagnosis and Intercomparison (PCMDI, formerly)
  • 3. Universidad de Cantabria (UniCan)
  • 4. Met Office Hadley Centre (MetOffice)
  • 5. Spanish State Meteorological Agency
  • 6. Climate Resource
  • 7. Japan Agency for Marine Earth Science and Technology (JAMSTEC)
  • 8. German Climate Computing Centre (DKRZ)

Description

Features

  • Added CMIP7 C examples for regular grids, pressure levels, scalar height coordinates, basin axes, hybrid sigma levels, curvilinear grids, and fixed fields. (#993)
    • The C examples include shared helper functions, a README, and a run script.
  • Updated the CMIP7 Python, Fortran, and notebook examples to use current CMIP7 tables and real source metadata instead of dummy source_id values. (#993)
    • The Python and Fortran examples now use the CMIP7 cell_measures and long_name tables where needed.

Bugfixes

  • Fixed writing variables with time1 axes and formula terms when the time axis does not have bounds, preventing duplicate or spurious time values in output files. (#989, #991)
  • Fixed a related issue when mixing whole-variable and chunked writes for a variable and its formula terms. (#991)

Changes

  • Dropped Python 3.10 from nightly and wheel-build support after Python 3.10 support was removed from the conda-forge CMOR feedstock. (#990)
    • CMOR 3.15.3 supports Python 3.11, 3.12, 3.13, and 3.14.
  • Updated the CMIP7 tables submodule used by tests and examples. (#993)

Issues / Pull Requests

GitHub

Notes

If you use the CMOR software, please cite it using the metadata from this file

Files

PCMDI/cmor-3.15.3.zip

Files (20.4 MB)

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md5:5b9625eb9e1e1f69c6f3b883c035909a
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Additional details

Related works

Is supplement to
Software: https://github.com/PCMDI/cmor/tree/3.15.3 (URL)

Software

Repository URL
https://github.com/PCMDI/cmor