Question

Why there is higher salinity in northern red sea while lower salinity in the southern red sea?

Answer 1

Salinity ranges from between ~36 ‰ in the southern part because of the effect of the Gulf of Aden water and reaches 41 ‰ in the northern part, owing mainly to the Gulf of Suez water and the high evaporation. ... Limited connection with the Indian Ocean, which has lower water salinity.