occur at the surface under the eddies. Under moist conditions, stationary lenticular
clouds can form along the crests, and clouds can form downwind at the top of the
recirculation zone (Stull 1994).
Fig. 5.11 Schematic of air circulation regimes over an isolated hill for different Froude numbers
(after Stull 1994)
5.5 Flow Over Gently Sloping Hills
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