Ik 



3- Sea-air transfer did not affect the large scale vertical motion 

 in the system significantly in 12 hours. 



k. The sea-air transfer effects were shallow, failing to penetrate up 

 through the 500 mb level. 



These rather negative conclusions regarding the role of sea-air transfer 

 in the dynamics of coastal cyclogenesis must be viewed warily. The model 

 is constrained (notably in regard to the static stability); the experiments 

 were few in number; the period of integration was short. 



Nevertheless the conclusions are not greatly at variance with those of 

 other investigators. Prof. Yale Mintz recently wrote the following to me, 

 in reply to a request for his views on the subject: 



"I am sure this heating plays an important role in determin- 

 ing the temperature, wind and pressure fields, but in some 

 complicated way affecting more than just the cyclone scale of 

 motion.".... "If I have to guess at an answer, I would say 

 that the heat transfer from the sea affects the baroclinicity 

 of the air and hence the subsequent cyclogenesis; but that a 

 cyclone already in the developing state is, itself, relatively 

 little affected by the heat transferred to it. But that is 

 only a guess . " 



I am inclined to believe that this is a rather shrewd guess. 



