On the Exchange of the Water Vapour in the Atmosphere

Abstract

The equation of the exchange of the water vapour in the atmosphere is given approximately by the following equation, assuming that the direction of the x-axis is normal to the equi-vapour-tention line, where δm is the condensed mass per unit volume per unit time, φ the mass of water vapour per unit volume, u the horizontal velocity, K_n and K_a the coefficients of the horizontal and vertical diffusivity.
The right hand side of this equation was calculated numerically and it is found that the most important exchange of the water vapour is done by the convection and the horizontal eddy diffusion. The condensation at each height of the atmosphere was calculated by this equation.