WHAT IS THE TIDE OF THE OPEN ATLANTIC? 



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evident that the impulse is transmitted to the various stations 

 with a delay dependent on distance from the deeper water, yet 

 there is no tide of the progressive estuarine type. This failure 

 is complete in the three 

 characteristics of time, 

 range, and front steepen- 

 ing, since the interval 

 from high water to low 

 water is 6b. 13m. at all 

 three stations, implying 

 equal front and back 

 slopes in the tide wave. 



Buzzards bay has tides 

 that reach almost all its 

 shores at the same time, 

 as if originating at some 

 point central to the bay. 

 Dr Bache, in 1864, noted 

 the essential feature that 

 its tides are nearly syn- 

 chronous at the head and 

 all about the bay. To 

 illustrate this, figure 6, besides showing the tidal interval for 

 each station from No Mans Land, shows also the 30m. cotidal. 

 There is certainly no progression up the bay here, nor is there 

 any perceptible increase in tide ranges. 



Figure 



Figure G 



