A Numerical Model for Studying Convectional Lifting Processes in the Tropics

A simple model for studying convectional lifting processes in the tropics is described in this paper with some tests of the model in dry air. The model consists of the density equation, the wind equation, the vertical velocity equation, and the temperature equation. The model domain is two-dimensional with length 100 km and height 17.5 km. Plan for experiments to investigate the effects of the heating surface, the deep convection approximation and the treatment of velocities at the boundaries are discussed. Equations for the simplified treatment of moisture in the atmosphere in future numerical experiments are also given.

Authors:

• Chantawan Noisri
• Robert Harold Buchanan Exell

Keywords:

• Numerical weather prediction
• Finite differences
• Convection lifting.

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