The Sub-seasonal to Seasonal (S2S) prediction project is a joint initiative of the World Weather Research Programme (WWRP) and the World Climate Research Programme (WCRP). The goal of S2S is to improve the forecast skill and understanding on the sub-seasonal to seasonal timescale, and to promote its...

The International Grand Global Ensemble (TIGGE) dataset consists of global medium-range ensemble forecasts from thirteen numerical weather prediction (NWP) centres, starting since October 2006. TIGGE was established as a key component of THORPEX: a World Weather Research Programme to accelerate the...