S2S, sub-seasonal to seasonal prediction project, is a WWRP/THORPEX-WCRP joint research project established to improve forecast skill and understanding on the sub-seasonal to seasonal time scale, and promote its uptake by operational centres and exploitation by the applications community. - The first 5-year phase of the project began in Nov 2013
- Phase II of S2S began in January 2019 and will conclude in December 2023.
![](/download/attachments/40109629/image2016-6-29%2013%3A15%3A0.png?version=1&modificationDate=1467206100134&api=v2) This website is related mainly to the dedicated S2S data archive of selected meteorological fields which has been created and maintained by ECMWF. |