Chesapeake Lightship (fig. 16, table 16)-- 

 The drop m surface water temperature in 

 March equaled the record low of 1958 at this 

 station; May through October values, however, 

 were above the mean, while December was 

 below normal. This regime closely parallels 



the trends at all stations to the north as 

 far as Barnegat Lightship, while to the south 

 of Cape Hatteras different conditions prevailed. 

 The cold 'water intrusion at the bottom in 

 midsummer is now considered normal as are 

 the relatively extreme salinity fluctuations. 



80 r 



£ 20 





1 1 

 <46° 



40 



60 



45' 



II I 

 II 

 >42°40° 



Willi ill | 



7\ 



70° 



BOTTOM S.% 



JAN. FEB. 



MAR. 



APR. MAY JUN. JUL. AUG. SEP. OCT. NOV. DEC. 



Figure 16.— Chesapeake Lightship. (Dashed line in upper diagram mean for period 1950-59.) 



43 



