Seasonal Forecasting System

These data sets contain data at the resolution of the seasonal forecasting system in operational use at EMCWF. Since the resolution and internal representation of the archive may vary according to changes in ECMWF's operational practice, data services associated with these data sets include the provision of interpolation to requested resolutions and representation forms.

Eight data sets are separately provided:

• Isentropic Level Forecast
• Pressure Level Forecast
• Surface Forecast
• Wave Forecast
• Isentropic Level Monthly
• Pressure Level Monthly
• Surface Monthly
• Wave Data Monthly