The study of the effect of Arvandroud on Persian Gulf Salinity change using MIKE model

ArvandRoud is known as the most important fresh water inlet of the Persian Gulf and plays a key role in controlling salinity, especially in its northern portion. Since the northern part of the Persian Gulf is exchanged with lagoons and wetlands due to tide, its salinity is of great importance to the ecosystem of the region and the coasts of Khouzestan. In this study, using the Mike model based on the three-dimensional solution of the Navier Stokes equations, assumption of incompressibility, Boussinesq aproximation, and hydrostatic pressure, the effect of Arvandroud on Persian Gulf salinity in two states has been investigated investigated: with a discharge rate of 1400 m3/s and without Arvandroud. The results show that by ignoring the entrance of the Arvandroud to the Persian Gulf, the peak of salinity at the Gulf increases to 7 PSU and affects the southern half of the Persian Gulf along the Arabian coasts. Also, results implicitly indicate that Arvandroud discharge rate has no effect on the amount of water entering and leaving the Strait of Hormuz.