HEAT AND MOMENTUM FLUXES OVER CHILKA - A TROPICAL LAGOON

Atmospheric and hydrographic parameters over Chilka lagoon are studied from March 1987 to February 1988. Salinity, water temperature and dep th exhibit large temporal and spatial variations. Wind field is observ ed to be highly variable during the period of observation. Momentum fl ux and the sensible and latent heat fluxes are more during pre-monsoon and monsoon periods. Thermal instability (water warmer than air) prev ails on most of the days during the period of observation and is inver sely related to wind speed. Comparative study of the important surface features between 1986 and 1987 for the months, June and September, sh ow significant interannual and interseasonal variability.