Britannica "Sea of Marmara: Where Ancient Myth and Modern Science Mix" at SCIENCE FOCUS – SeaWiFS 40°45′N 28°00′E / 40.750°N 28.000°E / 40.750; 28.000
。過往湖泊的鹽度變化很大,1929年和1939年是淡水湖,但1949年卻測量是鹹水湖。 NASA image provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE. W. V. Brelsford: