150 



Fluctuations 



Bermuda is favorably placed near the western side of the North Atlantic 

 Ocean, close to the region of maximum mean AAond curl, but well away 

 from the Gulf Stream. One should expect to find changes of sea level 

 there which correspond closely to those described in the theory of Veronis 

 and Morgan. 



Dr June Pattullo, of the Scripps Institution of Oceanography, has been 

 engaged for several years in making a study of seasonal changes in mean 



+ 10 



CM 



-10 



JFMAMJJASONDJ 



+ 10 



CM 



- 10 



3) 



.r(4) 



•^~-x^>-' 



s / 

 \ / 



Fig. 77. An analysis of annual variations of sea level at Bermuda. The four 

 curves are described in the text. 



sea level throughout the world, and although the results of this valuable 

 project have not yet been pubUshed,^ she very kindly communicated to me 

 the results of her analysis of the Bermuda sea level. Curves 1 and 2 of 

 fig. 77 are plotted from Dr Pattullo's computations. Curve 1 presents the 

 monthly mean sea level computed on the basis of hydrographic-station 

 data alone. It represents the change in sea level due to changes of local 

 density structure and, according to theory, is not directly related to the 



^ Subsequently published by Jiuie Pattullo, Walter Munk, Roger Revelle, and 

 Elizabeth Strong, in the Journal of Marine Research, 14 (1955): 88-156, under the 

 title, 'The Seasonal Oscillation in Sea Level'. 



