An Experience of the Humidity Forecasts Verification and Assessment of Their Applicability in Forecasting of the Aircraft Icing Zones

A. R. Ivanova

Results of verification of the relative humidity forecasting performed by using a number of numerical models are presented. Efficiency of forecasting of possible conditions combinations that cause the aircraft icing, such as negative temperature and high relative humidity, is assessed. The best results are demonstrated by the NCEP global model and semi-Lagrangian model with varying resolution. Significant discrepancies in the humidity initial fields modeled by using different models are revealed.