PCMDI Published Content
Published April 17, 2026 | Version 3.14.2
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

Changes

  • Refreshed CMIP7-oriented user guidance in cmor_CV.c for invalid source_id and institution_id values, including current WCRP-CMIP issue links and the CMIP7 CV registration guide. (#942)
    • Updated source_id and institution_id CV error messages to point users to current CMIP7 registration issue templates and guidance instead of outdated links.
  • CMIP7 datasets now write parent and branch attributes only when the selected experiment defines parent experiments in the controlled vocabulary. (#940)
    • This is done when _cmip7_option is enabled in the user input JSON.
    • When a CMIP7 experiment has no parent experiments, CMOR now warns about stray parent attributes and removes them before writing the output file.
    • When a CMIP7 experiment requires a parent, CMOR now errors if parent_experiment_id is missing, not allowed by the controlled vocabulary, or paired with an invalid parent_activity_id.

CI / Tests

  • Added Test/test_cmor_parent_attrs.py coverage for CMIP7 parent-attribute handling across no-parent experiments, required-parent experiments, warning-and-removal behavior, and invalid parent metadata. (#940)
    • Updated existing CMIP7 Python tests to reflect the new parent-attribute rules and to clean up temporary test inputs created during test runs.

Issues / Pull Requests

GitHub

Notes

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

Files

PCMDI/cmor-3.14.2.zip

Files (3.5 MB)

Name Size Download all
md5:2d058e1211ba64d709acd16070ed7c77
3.5 MB Preview Download

Additional details

Related works

Is supplement to
Software: https://github.com/PCMDI/cmor/tree/3.14.2 (URL)

Software

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