OpenIFS is an ECMWF led project which provides an easy-to-use, exportable version of the IFS system in use at ECMWF for operational weather forecasting. The project aims to develop and promote research, teaching and training on numerical weather prediction (NWP) and NWP-related topics with academic and research institutions. Use of OpenIFS on topics of interest to the Centre and member states is encouraged.
OpenIFS provides the forecast-only capability of IFS (no data assimilation), stays close to operational version and supports operational configuratinos. For more details see how OpenIFS compares with IFS.
The OpenIFS model 'package' includes not just the model itself but acceptability tests for compilers/hardware, example case studies, plotting & analysis tools and so on.
The model is intended for research and educational use by Universities, research organisations and individual researchers on their own computer systems. It is not provided for any real-time forecasting.
OpenIFS is supported by a dedicated team at ECMWF. Documentation, install instructions, frequently asked questions and other help information can all be found on this website. User forums are also available. Support is provided for a range of hardware platforms and compilers.
Please note that OpenIFS is licensed software and not open-source or in the public domain. Licenses are free of charge and should be seen as a barrier to use of the model.