Humidity Augmentation as the Initial Impulse in a Numerical Cloud Model
نویسنده
چکیده
A perturbation of relative humidity is used as a trigger to start the convection in a two-dimensional numerical model of a cumulus cloud. The effects of varying the width and depth of the perturbation are studied. The rate of growth; eventual cloud height, liquid water content, and updraft strength are strongly dependent on depth of the impulse; but for realistically shallow depths, these values are in reasonable agreement with observations of real clouds. As in the case of one-dimensional models, the ultimate cloud height is dependent on the width of the impulse, bu t perhaps to a lesser extent.
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