The ECMWF OpenIFS model has become publicly available for download under the Apache 2.0 open-source licence. This page provides an overview how to work with the new git repository on GitHub.

Download the OpenIFS model

The source code for the OpenIFS model, inclusive of the OpenIFS single-column model and the latest documentation, can be downloaded free from this repository on GitHub:

https://github.com/ecmwf-ifs/openifs

Documentation  

The latest documentation for OpenIFS is included in the git repository, in the  README.md  and in the  docs directory. This documentation supersedes the existing user guides on ECMWF Confluence which will no longer be maintained.  It also ensures that the documentation remains aligned with the respective model version.

Migration for existing users