Что (кто) такое Meander - определение
![[[Glen Canyon]], US](https://commons.wikimedia.org/wiki/Special:FilePath/Glen Canyon Dam MC.jpg?width=200 "[[Glen Canyon]], US")
![San Juan River]], SE [[Utah]]. There is a cut-off meander at right center.](https://commons.wikimedia.org/wiki/Special:FilePath/Goosenecks of the San Juan, Utah.jpg?width=200 "San Juan River]], SE [[Utah]]. There is a cut-off meander at right center.")
![Great Ouse Relief Channel]], England.](https://commons.wikimedia.org/wiki/Special:FilePath/Great Ouse Relief Channel.jpg?width=200 "Great Ouse Relief Channel]], England.")
![The Rincon on [[Lake Powell]] in southern [[Utah]]. It is an incised cutoff (abandoned) meander.](https://commons.wikimedia.org/wiki/Special:FilePath/Lake Powell and The Rincon, Utah - NASA Earth Observatory.jpg?width=200 "The Rincon on [[Lake Powell]] in southern [[Utah]]. It is an incised cutoff (abandoned) meander.")
![Meander of the River [[Cuckmere]] in [[East Sussex]], Southern England](https://commons.wikimedia.org/wiki/Special:FilePath/Meander-Cuckmere River-MT.JPG?width=200 "Meander of the River [[Cuckmere]] in [[East Sussex]], Southern England")
![[[Uvac]] canyon meander, Serbia](https://commons.wikimedia.org/wiki/Special:FilePath/Meandri uvca.jpg?width=200 "[[Uvac]] canyon meander, Serbia")
![Rio Negro]], Argentina. 2010 photo from [[ISS]].](https://commons.wikimedia.org/wiki/Special:FilePath/Rio Negro meanders.JPG?width=200 "Rio Negro]], Argentina. 2010 photo from [[ISS]].")
![Meanders, scroll-bars and [[oxbow lake]]s in the [[Songhua River]]](https://commons.wikimedia.org/wiki/Special:FilePath/SonghuaRiver ASTER 20020401.jpg?width=200 "Meanders, scroll-bars and [[oxbow lake]]s in the [[Songhua River]]")
![Meanders on the [[River Clyde]], Scotland](https://commons.wikimedia.org/wiki/Special:FilePath/The Carstairs meanders from the air (geograph 5676421).jpg?width=200 "Meanders on the [[River Clyde]], Scotland")
![The [[Jordan River]], near the [[Dead Sea]], 1937](https://commons.wikimedia.org/wiki/Special:FilePath/Zoltan Kluger. The Jordan, near the Dead Sea.jpg?width=200 "The [[Jordan River]], near the [[Dead Sea]], 1937")
Википедия
A meander is one of a series of regular sinuous curves in the channel of a river or other watercourse. It is produced as a watercourse erodes the sediments of an outer, concave bank (cut bank or river cliff) and deposits sediments on an inner, convex bank which is typically a point bar. The result of this coupled erosion and sedimentation is the formation of a sinuous course as the channel migrates back and forth across the axis of a floodplain.
The zone within which a meandering stream periodically shifts its channel is known as a meander belt. It typically ranges from 15 to 18 times the width of the channel. Over time, meanders migrate downstream, sometimes in such a short time as to create civil engineering challenges for local municipalities attempting to maintain stable roads and bridges.
The degree of meandering of the channel of a river, stream, or other watercourse is measured by its sinuosity. The sinuosity of a watercourse is the ratio of the length of the channel to the straight line down-valley distance. Streams or rivers with a single channel and sinuosities of 1.5 or more are defined as meandering streams or rivers.
