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Abstract
Steeply inclined air-flow, such as the flow over an escarpment, is of great importance in meteorology. The horizontal pressure field associated with such flow is investigated, and three components, associated respectively with hydrostatic effects, with accelerations and with friction, are evaluated.
A suggestion for the relation between the hydrostatic and the accelerational components is given. The upper-level pressure gradient in the direction of flow is thus calculable from a simple formula, involving the height of the escarpment (or other obstacle), the lapse rate of the air and the temperature.
Application of the theory to practical forecasting is briefly discussed.