Partly enclosed coastal body of water in which river water is mixed with seawater. An estuary is thus defined by salinity rather than geography. Many coastal features designated by other names are in fact estuaries (e.g., Chesapeake Bay). Some of the oldest continuous civilizations have flourished in estuarine environments (e.g., the land between the Tigris and Euphrates rivers, the Nile delta, the Ganges delta, and the lower Huang He valley). Cities such as London (River Thames), New York (Hudson River), and Montreal (St. Lawrence River) developed on estuaries and became important commercial centres.
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Estuary on the Bay of Biscay, southwestern France. Formed by the confluence of the Garonne and Dordogne rivers, it extends for about 45 mi (72 km) inland. It is navigable for oceangoing vessels, although it has sandbanks and strong tides.
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Effects of Short Time Variation in the River Discharge on the Salt Wedge Intrusion in the Yura Estuary, a Micro Tidal Estuary, Japan
Mar 01, 2013; ABSTRACTA numerical model was developed to investigate salinity distribution in the Yura Estuary, a micro tidal estuary in Japan....
Heathrow-on-sea ; What? One of the world's largest international airport plans to relocate onto a tidal estuary to the east of London.
Dec 14, 2008; What? One of the world's largest international airport plans to relocate onto a tidal estuary to the east of London. Why? London...