SOME ASPECTS OF THE VARIATION WITH TIME OF KATABATIC FLOW OVER A SIMPLE SLOPE

Features of the variations in katabatic flow along a simple slope in A thens, Greece are examined both observationally and from a simplified theoretical basis. When undisturbed periods of established flows are s elected it is observed that the velocity and temperature fluctuations reveal characteristics which are in agreement with the theory proposed by Fleagle. Interesting implications of the theory are discussed, suc h as the effects of prescribing a decreasing cooling rate throughout t he night or of taking into account the vertical structure of the katab atic layer.