Application of Doppler sodar in short-term forecasting of PM.sub.10 concentration in the air in Krakow

This paper describes an attempt to use data obtained from sodar (sound detection and ranging) for short-term forecasting of PM.sub.10 concentration levels in Krakow. Krakow is one of the most polluted cities in central Europe (CE) in terms of PM.sub.10 concentration. This is due to the high municipal emissions. Thanks to intensive corrective actions taken by the city authorities, these are being effectively eliminated, but the unfavourable topographic location of the city limits natural ventilation. The article describes all these conditions, focusing on presenting the method of short-term correction of air quality for the time needed to take quick corrective actions by the city authorities in the event of anticipated exceedances of the permissible values. Based on several years of measurements of the physical properties of the atmosphere with sodar, the authors of the paper suggest that sodar data could be considered for operational use to generate short-term predictions.