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
Gazetteer of the Persian Gulf, Oman and Central Arabia Gulf States and Saudi Arabia" from the 17th to early 20th century. Beginning in the 20th century, the British Empire sought to strengthen its connections to British-controlled India which in turn resulted in a greater interest in the Persian Gulf region, culminating in the visit of the Viceroy of India Lord Curzon to the Gulf in 1903. To ensure that British agents in the region were adequately informed and prepared to strengthen their influence in the region, a light-weight and easily accessible handbook was needed. In November 1903, the British authorities commissioned John Gordon Lorimer, a member of the Indian