TY - JOUR TI - Some aspects of the variation with time of katabatic flow over a simple slope AU - Helmis, C.G. AU - Papadopoulos, K.H. JO - Quarterly Journal of the Royal Meteorological Society PY - 1996 VL - 122 TODO - 531 SP - 595-610 PB - Royal Meteorological Society SN - 0035-9009, 1477-870X TODO - 10.1256/smsqj.53102 TODO - Flow; Katabatic; Temperature Fluctuations; Velocity, drainage flow; katabatic flow; katabatic flow cycle; nocturnal drainage; theroetical evaluation, Greece, Athens TODO - Features of the variations in katabatic flow along a simple slope in Athens, Greece are examined both observationally and from a simplified theoretical basis. When undisturbed periods of established flows are selected 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, such as the effects of prescribing a decreasing cooling rate throughout the night or of taking into account the vertical structure of the katabatic layer. ER -