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{{short description|Water runoff from a smaller place to a larger one}} |
{{short description|Water runoff from a smaller place to a larger one}} |
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[[File:Iss016e019375.jpg|The port and city are the southern terminus of the Suez Canal which flows through Egypt and debouches into the Gulf of Suez near Port Tawfiq (ميناء بورتوفيق).|thumb]] |
[[File:Iss016e019375.jpg|The port and city are the southern terminus of the [[Suez Canal]] which flows through Egypt and debouches into the Gulf of Suez near Port Tawfiq (ميناء بورتوفيق).|thumb]] |
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In the geography of rivers, streams, and glaciers, a '''debouch''', or '''debouche''', is a place where runoff from a small, confined space emerges into a larger, broader space. The term is of French origin and means to cause to emerge. The term also has a military usage.<ref>{{cite book | date = 2009 |title = Continental Shelf Sediment Transport and Depositional Processes on an Energetic, Active Margin: the Waiapu River Shelf, New Zealand |first = Yanxia | last = Ma |pages = 2,19}}</ref> |
In the geography of rivers, streams, and glaciers, a '''debouch''', or '''debouche''', is a place where runoff from a small, confined space emerges into a larger, broader space. The term is of French origin and means to cause to emerge. The term also has a military usage.<ref>{{cite book | date = 2009 |title = Continental Shelf Sediment Transport and Depositional Processes on an Energetic, Active Margin: the Waiapu River Shelf, New Zealand |first = Yanxia | last = Ma |pages = 2,19}}</ref> |
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Revision as of 04:27, 29 March 2021
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Iss016e019375.jpg/220px-Iss016e019375.jpg)
In the geography of rivers, streams, and glaciers, a debouch, or debouche, is a place where runoff from a small, confined space emerges into a larger, broader space. The term is of French origin and means to cause to emerge. The term also has a military usage.[1]
Geology
In fluvial geomorphology, a debouch is a place where runoff from a small, confined space emerges into a larger, broader space. Common examples are when a stream runs into a river or when a river runs into an ocean. Debouching can generate massive amounts of sediment transport. When a narrow stream travels down a mountain pass into a basin, an alluvial fan will form from the mass deposit of the sediment. The four largest rivers (the Amazon, the Ganges-Brahmaputra, the Yangtze and the Yellow) are responsible for 20% of the global discharge of sediment in to the oceans by debouches.[2]
Geography
In fluvial geography, a debouch is a place where a body of water pours forth from a narrow opening. Some examples are: where a river or stream emerges from a narrow constraining landform, such as a defile, into open country or a wider space; a creek joins a river; or a stream flows into a lake.[3]
Military
In military usage of debouch: as a noun, a fortification at the end of a defile is sometimes known as a debouch; and as a verb, soldiers emerging from a narrow space and spreading out are also said to "debouch". [4]
See also
References
- ^ Ma, Yanxia (2009). Continental Shelf Sediment Transport and Depositional Processes on an Energetic, Active Margin: the Waiapu River Shelf, New Zealand. pp. 2, 19.
- ^ "debouch as a noun". Oxford English Dictionary. Retrieved October 10, 2012.
- ^ Mitchell, Martha S. River Rules: The Nature of Streams. p. 5.
- ^ "debouch as a verb". Oxford English Dictionary. Retrieved October 10, 2012.
External links
- "debouch". Merriam-Webster. Retrieved October 10, 2012.