Model Output Statistics (MOS)
is the technique of post-processing the output from numerical weather forecast model
using statistics of local historical or actual weather measurements.
Pure statistical models are excellent at "Nowcasting
" (forecasting short-term local weather) but are usually worthless beyond about six hours.
The MOS technique combines the model output
, by using the complex numerical models based on the physics of the atmosphere to forecast the large-scale weather patterns and then using regression equations in statistical post-processing to clarify surface weather details.
The accuracy is generally
better than either a pure statistical model or a pure numerical model (NWP).
meteoblue offers MOS services for temperature
, as well as for certain applications with precipitation