---
tags:
  - Free
catalog:
  name: CDO
  description: Command line tools to manipulate and analyse Climate and NWP model Data
  license_type: Free
  disciplines:
    - Atmosphere research
  available_on:
    - Roihu
---

# CDO

[CDO](https://code.mpimet.mpg.de/projects/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](python-geo.md) 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](../support/tutorials/roihu-user-spack.md).
