-The historical meteorological data presented are provided from the US National Centre of Environmental Prediction (NCEP). The NCEP FNL (Final) operational global analysis and forecast data are on 0.25-degree x 0.25-degree grids generated every six hours. This product is from the Global Data Assimilation System (GDAS), which continuously collects observational data from the Global Telecommunications System (GTS), and other sources, for many analyses. The FNLs are made with the same model used in the Global Forecast System (GFS) of NCEP, but the FNLs are prepared about an hour or so after the GFS is initialized, so that more observational data are used. They are available from mid-2015 onwards.
- The current meteorological parameters are provided from BEYOND/NOA operational forecasting model, which uses the Advanced Research WRF (ARW) model that is a configuration of the Weather Research and Forecasting (WRF) model. WRF-ARW v.4 runs operationally on BEYOND/NOA servers daily and provides high-resolution forecasts over Europe (6-km) and Greece (2-km) for 60 forecasting hours. Initial and boundary data are provided by NCEP GFS 0.25-degree analyses and forecasts (12Z cycle).