BREEZE ANALYSIS BY MAST AND SODAR MEASUREMENTS

During the year 1993, field measurements were carried out in a meteoro logical station located in the neighbourhood of Rome, 10 km from the c oast (Tyrrhenian Sea). The monitoring station is composed of a 30 m ma st and a three-axial Doppler sodar. A statistical analysis of data has been made in order to obtain the main parameters utilised by the disp ersion model. Hourly, seasonal and conditional averages showed the str ong influence of sea and land breeze circulation on the local characte ristics of the atmospheric boundary layer. Such an aspect has to be co nsidered in the numerical predictions of pollutant dispersion.