On the estimates of heat and moisture over the Indian monsoon trough zone

Based on mean radiosonde/Rawin data for July–August for stations around the monsoon trough over India estimates of sensible and latent heat energy through the entire troposphere have been made. A quasi-eliptical boundary defined by 17 aerological stations containing the monsoon trough has been chosen for the study.

The mean tropospheric circulation is briefly described.

Mass and energy fluxes are evaluated. The computations show mass inflow at all levels up to 600 mb and outflow above 500 mb. The total energy shows a maximum in the lower troposphere and in the upper troposphere with a minimum in the middle troposphere. The flux computations show an export of sensible heat of 8.8 times 1018 calories per day and an import of 16.07 times 1018 calories per day through latent heat.