Persian Gulf as "The Northwestern limit of Gulf of Oman". This limit is defined as "A line joining Ràs Limah (25°57'N) on the coast of Arabia and Ràs al Kuh (25°48'N) on the coast of Iran (Persia)". The gulf is connected to Indian Ocean through Strait of Hormuz. Writing the water balance budget for the Persian Gulf, the inputs are river discharges from Iran and Iraq (estimated to be 2000 cubic meters per second), as well as precipitation over the sea which is around 180mm/year in Qeshm Island. The evaporation of the sea is high, so that after considering river discharge and
Piracy in the Persian Gulf Persia and Oman. By the morning of 14 November, the military expedition was over and the British forces returned to their ships, having suffered light casualties of five killed and 34 wounded. Arab losses are unknown, but were probably significant, while the damage done to the Al Qasimi fleets was severe: a significant portion of their vessels had been destroyed at Ras Al Khaimah. While the British claim that acts of piracy disrupted maritime trade in the Persian Gulf, Sultan bin Muhammad Al Qasimi, author of "The Myth of Piracy in the Gulf", dismisses this as an excuse used by