The TIGGE dataset consists of ensemble forecast data from twelve global NWP centres, starting from October 2006. TIGGE was established as 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. Although the decade-long THORPEX programme had finished at the end of 2014, TIGGE continued for a further 5 years. Currently another stage of TIGGE archive has already been confirmed for further 4 years until the end of 2023.
While TIGGE data is available free of charge, TIGGE users are strongly encouraged to publicise all of their research articles and applications that use any aspect of TIGGE data by emailing ECMWF's service desk with a link to the article.