estuary

The estuary of the river, or estuary of the estuary is the territorial water area where the madiknya one or more rivers enter the oceans, lakes, dams, or even other major rivers.

Or often it is known that the river or the groove is a network of water systems that form naturally on the surface of the earth that form flow patterns. The source of river water comes from rainwater, ground water, and glaciers. There are several terms associated with rivers,

Estuary of the river is the last location of river water flowing into the sea or to the lake or to another river. River gradient is a longitudinal cross section of the river showing the difference in slope between the lowest point (estuary) with the highest point of a river (upstream).