748 



[chap. 22 



14 15" 



Date (Oct. 1950) 



Fig. 18. Lunar seini-diurnal fluctuations of large amplitude off the coast of California. 



Fig. 19. Relation of the depth of an isotherm in the thermocline with reference to the 

 phases of the tide off Mission Beach in 60 ft of water. 



2 4 6 8 10 12 14 16 



PHASE LAG (h) 



Fig. 20. Autocorrelation of depth of (isotherm) thermocline and its relation to periods for 

 continuous 7 -day observation. 



