Computation of the average precipitation over the western part of peninsular India during the summer monsoon from the continuity equation for atmespheric water vapour

Water vapour fluxes computed across different walls of the triangular volume of peninsular India, bounded by Trivandrum, Bombay and Nagpur, were used to compute the net flux convergence on a monthly mean basis for the months June through September for the years 1967–72. The precipitation rates over the region were computed by using the flux convergence values and the equation of continuity for water vapour and were compared with the actual rainfall. The agreement between the computed precipitation and actual rainfall was found to be fairly close.