...
The second major component is the hydrological reforecasts, that are used to generate the model climatologies. These climatologies are range-dependent, i.e. they change with the lead time. The climatologies are produced from a large set of hydrological reforecasts, which allows for robust estimate of the climatological behaviour of the systems. The characteristics of the reforecast simulaions simulations are described below. Where appropriate, the difference between EFAS/GloFAS and sub-seasonal/seasonal is specified. If there is no EFAS/GloFAS or sub-seasonal/seasonal mentioned, then the method is identical between the systems:
...