The Determination of the Transmissibility of Coastal Aquifer

Abstract

A method to determine the transmissibility kH by analysing the phenomenon that thetidal fluctuation propagates into the coastal aquifer from the sea with damping effect is studied.
Survey of free groundwater is made. Each sinusoidal wave of the harmonically analysed tidal wave is believed to propagate according to the following cormula
_??_
Transmissibility is determined by the least square method concerning the differences between the observed amplitudes of the groundwater level in the well and the calculated values.
To determine the optimum transmissibility, it is desirable to begin observation with a spring tide, and the shortest practical period of observation is 4-5days.