Philae Philae Philae (; , , Egyptian: "p3-jw-rķ' or 'pA-jw-rq"; Coptic: ) is an island in the reservoir of the Aswan Low Dam, downstream of the Aswan Dam and Lake Nasser, Egypt. Philae was originally located near the expansive First Cataract of the Nile in Upper Egypt and was the site of an Egyptian temple complex. These rapids and the surrounding area have been variously flooded since the initial construction of the Aswan Low Dam in 1902. The temple complex was dismantled and moved to nearby Agilkia Island as part of the UNESCO Nubia Campaign project, protecting this and other complexes
Aswan Dam year. The annual crop consumptive use of water is about . Hence, the overall irrigation efficiency is 38/46 = 0.82 or 82%. This is a relatively-high irrigation efficiency. The field irrigation efficiencies are much less, but the losses are reused downstream. This continuous reuse accounts for the high overall efficiency. The following table shows that the equal distribution of irrigation water over the branch canals taking off from the one main irrigation canal, the Mansuriya Canal near Giza, leaves much to be desired: The salt concentration of the water in the Aswan reservoir is about , a very low salinity