All- 101 56 



effects only up to the eastern edge of the counter-current at 

 x' =0,1, For x' > 0, 1 only the mean position of the transport 

 is plotted since the deviations from this mean position are very 

 small* 



Near the eastern boundary of the ocean (Fig, 3) and in 

 the counter-current region (Fig, 2), the absolute magnitude of 

 the extreme values of the transport (which is now negative) are 

 also in phase with the extreme values of the wind and the trans- 

 port lags behind the wind at all other times. 



Figures *+, 5, and 6 show surface contours* for the 

 Southern half of the rectangular ocean for t = 0, 7i:/2, n, 3V2. 

 The contribution of bE-^ is very small throughout the ocean** and 

 has therefore been neglected. Thus the graphs for t = and 

 1 = % coincide. This result is based on the assumption that D 

 is 500 meters in thickness. If D were increased the above re«- 

 marks would be even more appropriate. If D were decreased, the 

 contribution of the perturbation term would be larger and we 

 would therefore have to account for it» The value of the first- 



* If we define the thermocline as the surface at z = T - d/2, 



then the contour lines of Figs, h, 5j and 6, multiplied by 



-200 represent the deviation of the thermocline from its 



equilibrium position at z = - C - d/2 = - d. 



** If for any of the variables the magnitude of the coefficient 

 of 6 in the perturbation solution is of the same order as that 

 of the zero-order term, the coefficient 6 = 0.002 renders such 

 a correction negligible. Throughout the present example, the 

 only sizable contribution of the out-of-phase term is found 

 in the north- south transport V in the boundary layer x\rhere 

 the function V increases by order e"-^/3. However, Hq and Hx 

 have the same order of magnitude throughout the ocean so that 

 the first-order correction H^^ can be neglected throughout. 



