Résumé
The sea surface hourly meteorological parameters that were recorded at five time series stations under the North Arabian Sea Environment and Ecosystem Research [NASEER] programme [1992-1994] were used to study the heat fluxes including; momentum, latent, sensible and moisture heat fluxes as well as the net heat gain and total heat loss over the northern Arabian Sea. The study is the part of research on the formation and distribution of northern Arabian Sea water mass. The momentum or wind stress fluxes during the January 1992 and December 1994 were quite large in both the components of eastward [0.188 N m -2] and northward [0.148 N m -2]. During the August 1992, the east and north components were negative indicated direction of momentum from southwest with values under 0.1 N m-2. The data recorded during the March of 1993, have the visible diurnal variational pattern. The average of sensible heat fluxes during January 1992 was 76 Wm -2, while in the August of 1994 was 71 Wm -2. The results of evaporation indicated the similar pattern of diurnal variation as observed for the data of latent heat fluxes. During the January 1992 cruise, minimum evaporation is computed in the early morning and maximum after 1100 hours. However, during the December 1994, minimum evaporation was observed after sunrise and maximum near to sun set. The mean of the Net Heat Gain during the January 1992 was 138 Wm -2 while, in the August 1992, mean of the area was computed as 96 Wm -2. The Net Heat Gain values depicted that in the entire area of observation, heat was lost from sea surface to the atmosphere