6- 



(3) Some 20 crossings of the Gulf Stream with the 

 "Crawford" were m.ade during October 1962 off Cape Hatteras by 

 T. F. Webster. These data proved useful as an independent check 

 of the results obtained in the earlier cruises. The crossings were in 

 this case not made along the same line at right angles to the Gulf 

 Stream, but shifted slowly downstream with time. Except for 

 this shifting in position of the section, the measurements were 

 taken in a similar fashion as during the first two cruises. 



The observations of each cruise were divided into 

 groups, each group covering a zone about 10 km wide. Each group contains 

 the observations made at approximately the same distance from 

 the mean axis of the Gulf Stream. The data in each group form 

 a time series at a fixed location, and its average represents thus 

 an average in time. For the first two cruises, only the zones 

 with a number of observations exceeding 35 were used. In each 

 zone the covariances in time of the cross current velocity u, 

 the temperature T and the density p were computed. These 

 covariances give us the fluxes of interest. 

 The following notation is used: 



u ^velocity of current normal to the time mean 

 axis of the Gulf Stream (positive if in offshore direction) 



V = velocity of current in direction of mean 



