- 5 - 



ORDER OF MAGNITUDE OF 

 THE WIND MIXING CURRENT 



Since the wind mixing ciirrent varies linearly with depth 

 in the model above the total transport of water is 



T^ = -izH/!!|^\ (11) 



Considering data from which Figures 1 and U were taken* 

 over the indicated intervals of time between Stations "C" and "D", 

 assuming one-half the variation at "D" was due to mixing, the average 

 transport due to wind mixing during the 10-day period 28 September 

 to S October was 0.4 ft /sec. The transport due to wind stress during 

 this period could have been about 27 f t / sec. Hence it would appear 

 that the wind mixing current is small compared to possible wind stress 

 currents. However, taking into account the direction of the wind, 

 the resiiltant stress transport for this period was 2-5 ft^/sec. Thus 

 the wind mixing current was ten to twenty percent of the net transport 

 by the wind stress for this 10-day period. 



ACKNOWLEDGMENTS 



This work was stimulated by contact viith Mr. H. Stommel and 

 Mr. W. Malkus at the Conference on the Th^rmocline held at Big 



* Technical Report No. 3, "Summary of North Atlantic Weather Station 

 Data", Project 29 Texas A & M Research Foundation, ONR Contract 

 N7 onr 48703, NR 083-061, September 19-'52 



