446 



BULLETIN OF THE BUREAU OP FISHERIES 



chapter on river discharge the monthly variations in precipitation are discussed 

 in relation to their effect on the quantity of fresh water emptied into Long Island 

 Sound. 



WIND 



Another climatological factor that should be mentioned briefly with regard to 

 its effect on water temperatures is wind. The nearest Weather Bureau station 

 from which detailed wind records could be obtained was at Sandy Hook, N. J. 



4000 



2 ^000 



S 2000 



o 



I lOQO 







JUNE 



JULY 



AUaUST 



Figure 10. — Excess of south component wind movement over north for 1925 and 1926 



Talving the two years 1925 and 1926, we find a marked difference in the total monthly 

 wind movements and its direction for the summer months — June, July, and August. 

 For these months the movement of the south wind is invariably greater than the 

 movement of the wind from the north, and the prevailing direction is from the 

 south. In comparing the movement of the south component winds (southeast, 

 south, and southwest) with the north component winds (northwest, north, and 

 northeast), we find a noticeable variation in the number of miles excess of south 

 winds over north winds. As shown by Figure 10, in 1925 the wind movement from 

 the south was 1,487 miles greater than that in 1926 for June, 2,113 miles for July, 

 and 1,848 for August. In other words, for this period the resultant wind movement 



