Three-dimensional configuration and dynamics of the fresh–saline water interface near two saline lakes with different levels (Middle East)

Levy, Yehuda; Shalev, Eyal; Burg, Avihu; Yechieli, Yoseph; Gvirtzman, Haim

Three-dimensional configuration and dynamics of the fresh–saline water interface near two saline lakes with different levels (Middle East) | Configuration tridimensionnelle et dynamique de l’interface eau douce–eau salée à proximité de deux lacs salins de niveaux différents (Moyen Orient) Configuración tridimensional y dinámica de la interfase agua dulce–salina en las proximidades de dos lagos salinos con diferentes niveles (Oriente Medio) 中东两个不同水位盐湖附近咸淡水界面的三维结构和动力学特征 Configuração tridimensional e dinâmica da interface de água doce e salina próximo a dois lagos de água salina em diferentes níveis (Oriente Médio)

2021

Levy, Yehuda | Shalev, Eyal | Burg, Avihu | Yechieli, Yoseph | Gvirtzman, Haim

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.

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