BOLAM2000 model is verified against NCEP analysis data, provided
every day at 0000 and 1200 UTC.The verified parameters are
850 hPa and 500 hPa geopotential height and temperature.The
following diagrams show calculation of RMSE (root mean square
error) since the beginning of the operational use of BOLAM2000
at the National Observatory of Athens (November 1999).