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OpenIFS main help

Technical Description: get an overview of the parts that make up the model and some of the underlying scientific concepts (largely independent from model release)
OpenIFS User Guides: please see the user guides of all supported model releases for instructions on how to install and run OpenIFS.
How-to articles: find out how to do a number of things such as altering the code, changing model output, visualizing the output, debugging and so on.
Known issues: lists various known problems and their resolution.
Frequently Asked Questions
User Forums. You can search the User Forums for answers or ask a message or question.

IFS scientific & technical documents

ECMWF has many publications online, including user manuals, tutorials, seminar proceedings, technical reports and the newsletter, amongst other documents.
The full list of ECMWF publications can be found at: http://www.ecmwf.int/en/research/publications.

A more general complete description of the ECMWF Integrated Forecast System (IFS) can be found in the ECMWF Forecast User Guide.

IFS manuals for all model cycles

IFS manuals are available here.

The manuals on 'Dynamics & Numerical Procedures', 'Physical Processes' and 'Technical & Computational Procedures' are the ones most appropriate for OpenIFS.

Additional ECMWF documentation

Numerics of physical parameterization,
Beljaars et al, Proceedings of 2004 ECMWF seminar on Advances in Numerical Techniques.
Ocean wave model output parameters (Jean-Raymond Bidlot - 2016).
Radiation quantities in the ECMWF model (Robin Hogan)

Diagnostics

Manuals provided by GmapDoc website (MeteoFrance)

FULLPOS 'In-model' post-processing

Cycle 43r3

FULLPOS scientific doc (PDF)

Cycle 38r1/40r1

FULLPOS scientific doc (PDF)
FULLPOS user guide (PDF)
This is for an older cycle but still useful introduction to FULLPOS.
FULLPOS scientists guide (PDF)
This for an older model cycle.

DDH 'In-model' budgets on user-defined domains

User guide (PDF).

Code standards for OpenIFS

Code in OpenIFS should be written to follow the conventions in use at ECMWF.
Please follow this link to the document maintained by MeteoFrance: http://www.umr-cnrm.fr/gmapdoc//spip.php?article213&lang=en

Tutorials

ECMWF provide a number of tutorials useful for learning about aspects of OpenIFS related software. Please see Publications on main ECMWF website and follow links or follow specific links below.