Portland Lightship (Fig. 3, table 3) 



All but 7 decads of the year had below-normal surface water 

 temperatures and 16 had new low values. 



Bottom water was colder than normal in 19 of the 24 decads 

 in which it was observed. It was at a record low value in 11 decads, 

 of which 8 were in the first quarter of the year. 



The minimum in surface salinity was in early May which is 

 near the average time. Values in the first quarter of the year were 

 mostly near average whereas those in the remainder of the year were 

 largely above normal. Generally the values corresponded well with 

 rainfall and runoff data although the salinity did not reflect the 

 autumnal peak in runoff (U.S. Department of the Interior 1965). 





w 



"i~i — n~ 



IS 





35r 



u 



>2 





NO 

 DATA 



>« 



Figure 3. — Portland Lightship, 1965. (The dashed line in the upper 



diagram is the mean for 1956-64.) 



11 



