Page History

The work on this website is in progress. The most comprehensive information can be still found at These pages are intended to be used as a collaborative tool for TIGGE/TIGGE-LAM archive projects at ECMWF. You should be able to find here the most up-to-date information about ongoing activities, contacts to the involved people and importantly the tools for you active participation. The access to some parts of the pages is restricted to users with ECMWF account and the designated external TIGGE contact people only. For official public more "static" information please refer to the existing  http://tigge.ecmwf.int pages.

TIGGE

TIGGE, the THORPEX Interactive Grand Global Ensemble, is a key component of THORPEX: a World Weather Research Programme to accelerate the improvements in the accuracy of 1-day to 2 week high-impact weather forecasts for the benefit of humanity.

The TIGGE archive consists of ensemble forecast data from ten global NWP centres, starting from October 2006, which has been made available for scientific research. TIGGE has become a focal point for a range of research projects, including research on ensemble forecasting, predictability and the development of products to improve the prediction of severe weather. The TIGGE project is overseen by the GIFS-TIGGE working group, which includes representative of the TIGGE data providers and the TIGGE archive centres. Further information is available from this leaflet and on other pages of this website. We encourage researchers using TIGGE to inform the GIFS-TIGGE working group of their research progress, particularly when papers are published.

TIGGE website

Further information about TIGGE is available via this website:

• Technical documentation of the ensemble forecast systems and TIGGE archives;
• Research using TIGGE data, including published articles and links to related websites;
• Plans for the future development of a Global Interactive Forecast System (GIFS);
• The GIFS-TIGGE working group membership and meetings.

TIGGE data

The TIGGE data is available from the following portals:

• ECMWF portal: http://tigge-portal.ecmwf.int/
• NCAR portal: http://tigge.ucar.edu/
• CMA portal: http://bridge.cma.gov.cn:8080/tigge/index.jsp

For TIGGE users

If you use, or plan to use, TIGGE data, please sign up to the “tiggeusers” mailing list hosted by Unidata. This provides a forum in which TIGGE users can exchange information with one another, and provides a way in which TIGGE data providers can quickly pass news on to users.

News about the status of the TIGGE project can also be found here.

Contacts

If you have a general enquiry about TIGGE or GIFS, please contact one of the working group co-chairs. For enquiries specific to each ensemble prediction system, please contact the data provider directly, or via their representative on the working group. For enquiries about the TIGGE archive centres, please contact them via their data portal websites.

To request updates to this TIGGE website, please email tigge-web@lists.ecmwf.int.

GEOSS

As well as being part of the THORPEX programme, TIGGE is part of the “Global Earth Observation System of Systems” (GEOSS). TIGGE and the development of GIFS is task number WE-06-03 in the GEO (Group on Earth Observations) work plan.

ECMWF has played a key role in creation and maintenance of the TIGGE archive where nine global ensemble weather forecast systems' outputs are stored.

TIGGE - LAM

TIGGE - LAM is a continuation of TIGGE project, now related to limited area model ensemble forecasting. TIGGE-LAM archive, which can be considered as an enhancement of TIGGE (global) archive, is being created at ECMWF in the frame of EU funded GEOWOW project.