A typical fresh–saline water interface in a coastal aquifer is characterized by saline-water circulation below the interface and freshwater flow above. Both flows are perpendicular to the shoreline. The flow pattern near two separated saline lakes is more complicated. For example, in the Middle East, the Dead Sea northern basin and the evaporation ponds of the Dead Sea Works are adjacent to each other but separated. The northern basin level is dropping by 1.1 m/year and the evaporation ponds’ levels are increasing by 0.2 m/year. The fresh–saline water interface in such situation is numerically simulated. Streamlines parallel or semiparallel to the shoreline are significant. Moreover, the fresh–saline water interface intrudes landward adjacent to the higher saline lake and is pushed lakeward adjacent to the lower saline lake. The simulation results support field observations showing that the interface migrates vertically at a faster rate relative to the changes in the water table and the lake levels.

沿海含水层中典型的淡水-咸水界面的特征是界面下方的咸水循环和上方的淡水流动。两种水流都垂直于海岸线。两个分离的盐湖附近的流型更为复杂。例如在中东，死海北部盆地和死海工程的蒸发池相邻但分开。北部盆地水位下降 1.1 m/年，蒸发池水位上升 0.2 m/年。这种情况下的淡水-盐水界面进行了数值模拟。与海岸线平行或半平行的流线很重要。此外，淡水-咸水界面在高盐湖附近向陆上侵入，并在低盐湖附近被推入湖中。