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Warning!

Puhti and Mahti are being decommissioned in stages, and their storage areas will become fully unavailable from 15 October 2026. Clean up unnecessary files and move any data you need to keep by 31 August 2026. See the Roihu data migration guide for instructions on transferring your data to Roihu.

Puhti computing services have been decommissioned and no new jobs are accepted or executed on its compute nodes. Puhti login nodes and storage services are planned to remain available until 15 October 2026.

CDO

CDO Climate Data Operators is a collection of command line tools to manipulate and analyse Climate and NWP model Data. Supported data formats are GRIB 1/2, netCDF 3/4, SERVICE, EXTRA and IEG. There are more than 600 operators available.

License

CDO is free to use and open source under the GNU General Public License, version 2.

Available

CDO is available with following versions:

  • 2.6.0 - standalone executable with module load cdo command
  • 2.5.0 - in the 3.14.5 python-geo module/container in Roihu

Usage

CDO is included in the modules listed above. It can be used when the module is loaded.