Persian Gulf rain contributions, there is still a deficit of 416 cubic kilometers per year. This difference is supplied by currents at the Strait of Hormuz. The water from the Gulf has a higher salinity, and therefore exits from the bottom of the Strait, while ocean water with less salinity flows in through the top. Another study revealed the following numbers for water exchanges for the Gulf: evaporation = -1.84m/year, precipitation = 0.08m/year, inflow from the Strait = 33.66m/year, outflow from the Strait = -32.11m/year, and the balance is 0m/year. Data from different 3D computational fluid mechanics models, typically with spatial resolution
Persian Gulf naming dispute naming the "Arabian Gulf as the Persian Gulf" is that the Red Sea was named Arabian Gulf back then, which "prevented the Arabian Gulf from being named as Arabian Gulf, and instead the name Persian Gulf became common". According to a book "Documents on the Persian Gulf's name" (pp 92–98), the United Nations Secretariat and its specialized agencies have requested its staff to use only "Persian Gulf" as a standard geographical designation. The United Nations Group of Experts on Geographical Names discussed the naming issue during its 23rd session, held in Vienna from 28 March to 4 April 2006. According