All-101 12 



The following discussion will be based on the non- 

 dimensional quantities defined in the body of the reporte V/hen- 

 ever dimensional quantities are mentioned, we shall include the 

 dimensions! 



The graph of the north-south component, V, of the mass 

 transport vs. the east-west coordinate x' near x' = 0, the 

 western shore, is shown in Fig, 2 for the value y' = 0.25j i.e., 

 where the Gulf Stream is most pronounced. The Gulf Stream re- 

 gion is the region of large positive V, The region of negative 

 V adjacent to the Gulf Stream corresponds to the offshore 

 counter-current. 



The Gulf Stream responds to the v/ind in such a manner 

 that the mass transport and the v/ind are in phase whenever the 

 latter takes on its maximum or minimum value. At all other 

 times the mass tramsport lags behind the wind v;ith the greatest 

 lag occurring when the v;ind reaches its steady position « At 

 this time the mass transport is about 9 days away from its 

 steady value , The length of this inverval, l>e, , nine day:s, 

 is independent of the frequency for slowly varying v/inds. 



The wind (see Fig, 1) and the mass transport attain 

 their maximum values at i = 7:/2, The mass transport nov/ has a 

 magnitude of (1 + r'A'J') times its steady value. Thus, v/ithin 

 the accuracy of the present method of solution, the time at 

 which maximum transport occuj-s and the magnitude of the maximum 



* V/e shall refer to the "steady position" whenever the time- 

 dependent contribution of the wind is zero. 



** i.e., the value due to its response to a steady wind 

 T„ - - l\f ' cos ny. 



