Abstract
A slab model for near-neutral and convective steady-state internal boundary layer development is proposed. The model equations are closed by relating the consumption of energy (potential and kinetic) at the top of the internal boundary layer to the production and storage of turbulent kinetic energy within the layer, Gryning and Batchvarova (1990a). The strength of the inversion that caps the layer is parameterized and used in the model. When the internal boundary layer is shallow or the atmosphere is nearly neutrally stratified, its growth is controlled mainly by mechanical turbulence. Farther downwind from the shoreline, when the layer is deep, its growth is controlled mainly by convective turbulence and the temperature gradient in the stable air above.
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