Table 7. Tidal ranges and tidal lags, Rollover Pass. 



Date 



Location 



Tidal range 

 (ft) 



Ratio of 

 ranges, 

 Jetty 



Average 

 ratio 



Nov. 1936 



South Jetty 

 Rollover Bay 



1.97 

 1.23 



1.0 

 0.62K 



>0.57 



June 1937 



South Jetty 

 Rollover Bay 



2.07 

 1.08 



1.0 y 



0.52f 



/ 



Mar. 1965 



South Jetty 

 Gilchrist 

 Marsh Point 



1.74 

 1.16 

 1.21 



1.0 



0.671 



0.70J\ 



~^0.70 



Apr. 1965 



South Jetty 

 Gilchrist 

 Marsh Point 



1.54 

 1.13 

 1.12 



1.0 



0.73/ 



0.73. 



/ 



1974 



South Jetty 

 Marsh Point 

 Hanna Reef 



1.91 

 1.20 

 1.16 



■ ■ ■ - - ■ . .—^^ 



1.0 

 0.63] 



n AT 



0.6lJ 





Table 8. Tidal lags. Rollover Pass. 



Date 



Location 



Tidal lags (hr from reference station) | 



High water 



Low water 



Average 



High 1 Low 







Reference statloi 



\\ South Jetty 







1936-1937 

 Nov. 1936 

 June 1937 



1965 



M^r. 1965 

 Apr. 1965 



1965 



Mar. 1965 

 Apr. 1965 



Rollover Bay 



Rollover Bay 

 Gilchrist (Bay) 



Marsh Point 



4,31 

 3.7 



3.0 

 2.3 



3.3 

 2.6 



5.7 



4.20 



4.5 



3.0 



4.8 

 3.5 



4.0 

 2.65 



2.95 



4.95 

 3.75 



4.15 







Reference station: 



Gilchrist (Ba 



y) 





Mar. -Apr. 1965 

 Nov. 1971-Feb. 



Nov. 1971-Feb. 



1972 

 1972 



Marsh Point 

 Hanna Reef 



0.3 







0.4 



0.35 

 0.8 



1.7 







Reference statioi 



i: Marsh Point 







Nov. 1971-Feb. 

 16 July-9 Sept 



1972 

 1974 



Hanna Reef 



0.22 



0.36 



0.9 



0.29 



70 



