METHOD FOR DETERMINING FRESH-SALTWATER INTERFACE IN A COASTAL AQUIFER USING PRESSURE DATA

摘要

A method is provided to determine a change in a fresh-saltwater interface by measuring a change in pressure according to time through pressure type automatic water level recording devices. A method for determining a change in a fresh-saltwater interface using dual pressure data comprises the steps of: forming more than one monitoring wells(1) penetrating through a fresh-saltwater interface; measuring a change in pressure according to time through pressure type automatic water level recording devices(2,3) installed at portions of fresh water, an upper part of the fresh-saltwater interface, and salt water, a lower part of the fresh-saltwater interface, inside the monitoring wells; and determining the fresh-saltwater interface by using the difference in density of fresh water and salt water and the pressure data.