Debouch

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

In hydrology, a debouch (or debouche) is a place where runoff from a small, confined space discharges into a larger, broader body of water. The word is derived from the French verb déboucher (French: [debuʃe]), which means "to unblock, to clear". The term also has a military usage.^[1]

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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, 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]

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. doi:10.25773/v5-8w3d-wz58.
^ "debouch as a noun". Oxford English Dictionary. Retrieved October 10, 2012.
^ Mitchell, Martha S. (May–June 2000). River Rules: The Nature of Streams. p. 5. Archived from the original on January 1, 2005. {{cite book}}: |work= ignored (help)
^ "debouch as a verb". Oxford English Dictionary. Retrieved October 10, 2012.

External links

"debouch". Merriam-Webster. Retrieved October 10, 2012.

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