SECT. 2] 



LARGE-SCALE INTERACTIONS 



213 



(a) 



;b) 



Fig. 55. Aerial photographs of cloud whose measured profile is shown in Fig. 54. (After 

 Malkus, 1954, Fig. 2. By courtesy of the American Meteorological Society.) 



Wind blows from left (east-southeast) to right across the picture. Photographs 

 made from 1.4 km elevation with sufficient precision to reconstruct cloud dimensions. 

 Lower picture taken roughly two minutes after upper one. 



