Nantucket Lightship (fig. 7, table 7)--Sur- 

 face temperatures were below the mean except 

 in late August. This has held true since this 

 program started in 1956 and may be attributed 

 to a change in station position for this light- 

 ship. The mean is based on the record from 

 1947 to 1952 when the station was some 8 

 miles WSW of the present position. 



It is unfortunate that the winter observations 

 were too thin during the cold period in Febru- 

 ary to allow comparison with similar cold con- 

 ditions seen in 1957. 



Uj 



<t 



K 



2 



5 

 Uj 



r- 



70r 



60 



50 



40 



30 



SURFACE T. °E 



j i i 



Or 



20 

 40 

 60 



K 



Uj 



Uj 



U. 80 



g 



£ 100 

 120 

 140 

 160 

 180 

 36.0 







x 34.0 

 k. 



^ 32.0 

 30.0 



<39° 





\ 

 \ 



40° 



(II! 



<45° 



BOTTOM S.%< 



SURFACE S.%« 



JAN. FEB. MAR. APR. MAY JUN. JUL. AUG. SEP. OCT. NOV. DEC. 



Figure 7.— Nantucket Lightship. (Dashed line in upper diagram mean for period 1947-52.' 



18 



