d =Uis-tcnce t- Time


d -=


TIDAL LOADING


CONFINING LAYER-.....


PROPAGATION
 A N


ID
ATTENUATION Jo


1


HIGH TIDE


LOW TIDE


iv'


HIGH TIDE LOW TIDE


 . . . . . . . . . . . . . . . . . . . ..   .-.. . . . . .
 "G R O U N D W A T E R F L O W 4 N 1=0 0 -. ...A U F E . . . .
 ................

...... .... .............. .....i.. ... ...-......i..-........ i Iiiiii


z
0 0Y)


-K CENF I N ING L AY ER-


Figure 27. Response of water in a well penetrating a confined aquifer to oceanic
 tidal loading (modified from Enright, 1990).


I


. . . . . . . . . . . . . . . . . . . . I '


012
t2