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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 scratch is very full: keep only active data there and move or delete everything else. No new Puhti scratch quota will be granted.

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:

  • 2.5.0 - in the 3.14.5 python-geo module/container in Roihu

Usage

CDO is included in the module/container listed above, so it can be used when this module is loaded.

Installation

Users can install an optimised custom version of CDO relatively easily with Spack.