SOME OBSERVATIONS FROM THE DATA TAKEN IN AND AROUND KHARAGPUR DURING THE ONSET OF THE MONSOON, 1990

During MONTBLEX 1990, various observational platforms were operated at Kharagpur and the nearby Kalaikunda Air Base. Using the data from all the platforms, one can draw the following conclusions. The temperatur e and wind data obtained from various sensors have overall compatibili ty. Sodar wind data indicate the presence of a low level jet at around 300 m above ground. The inversion height may be evaluated from the ve rtical profile of the sodar back-scatter echo intensity. The sub-synop tic or synoptic scale convergence modulates the inversion height and t he presence of cloud-base within the inversion height in turn modulate s the sensible heat and momentum fluxes.