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Importing Wikidata short description: "Change in shape and direction of river channels over time"
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{{Short description|Change in shape and direction of river channels over time}} |
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The terms '''river morphology''' and its synonym [[ |
The terms '''river morphology''' and its synonym [[stream]] morphology are used to describe the shapes of [[river]] [[channel (geography)|channels]] and how they change in shape and direction over time. The morphology of a river channel is a function of a number of processes and environmental conditions, including the composition and [[erodibility]] of the [[stream bed|bed]] and [[stream bank|banks]] (e.g., sand, clay, bedrock); [[erosion]] comes from the power and consistency of the current, and can effect the formation of the river's path. Also, [[vegetation]] and the rate of plant growth; the availability of [[sediment]]; the size and composition of the sediment moving through the channel; the rate of [[sediment transport]] through the channel and the rate of deposition on the [[floodplain]], banks, [[bar (river morphology)|bars]], and bed; and regional [[aggradation]] or [[Degradation (geology)|degradation]] due to [[subsidence]] or [[Tectonic uplift|uplift]]. River morphology can also be affected by human interaction, which is a way the river responds to a new factor in how the river can change its course. An example of human induced change in river morphology is dam construction, which alters the ebb flow of fluvial water and sediment, therefore creating or shrinking estuarine channels.<ref>Bo-yuan Zhu,Yi-tian Li,Yao Yue,Yun-ping Yang. Aggravation of north channels' shrinkage and south channels' development in the Yangtze Estuary under dam-induced runoff discharge flattening. Journal Estuarine, Coastal and Shelf Science. 5 March 2017</ref> A [[river regime]] is a dynamic equilibrium system, which is a way of classifying rivers into different categories. The four categories of river regimes are Sinuous canali- form rivers, Sinuous point bar rivers, Sinuous braided rivers, and Non-sinuous braided rivers. |
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The study of river morphology is accomplished in the field of [[fluvial]] [[geomorphology]], the scientific term. |
The study of river morphology is accomplished in the field of [[fluvial]] [[geomorphology]], the scientific term. |
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==See also== |
==See also== |
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* [[Bedload]], [[Suspended load]] |
* [[Bedload]], [[Suspended load]] |
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* [[Sediment]], [[sedimentation]], [[erosion]] |
* [[Sediment]], [[sedimentation]], [[erosion]] |
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==External links== |
==External links== |
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*[http://www.waterbouw.tudelft.nl/public/rivmorf River Morphology at Delft University of Technology] |
*[https://web.archive.org/web/20050417072755/http://www.waterbouw.tudelft.nl/public/rivmorf/ River Morphology at Delft University of Technology] |
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*[http://www.wldelft.nl/cons/area/rem/index.html River Engineering and Morphology at WL | Delft Hydraulics] |
*[https://web.archive.org/web/20070427101840/http://www.wldelft.nl/cons/area/rem/index.html River Engineering and Morphology at WL | Delft Hydraulics] |
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*[http://www.delftcluster.nl/website/nl/page393.asp River morphology in Delft Cluster] |
*[https://web.archive.org/web/20070929013023/http://www.delftcluster.nl/website/nl/page393.asp River morphology in Delft Cluster] |
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{{river morphology}} |
{{river morphology}} |
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{{Authority control}} |
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[[Category:River morphology| ]] |
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[[Category:Rivers]] |
[[Category:Rivers]] |
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[[Category:Hydraulic engineering]] |
[[Category:Hydraulic engineering]] |
The terms river morphology and its synonym stream morphology are used to describe the shapes of river channels and how they change in shape and direction over time. The morphology of a river channel is a function of a number of processes and environmental conditions, including the composition and erodibility of the bed and banks (e.g., sand, clay, bedrock); erosion comes from the power and consistency of the current, and can effect the formation of the river's path. Also, vegetation and the rate of plant growth; the availability of sediment; the size and composition of the sediment moving through the channel; the rate of sediment transport through the channel and the rate of deposition on the floodplain, banks, bars, and bed; and regional aggradationordegradation due to subsidenceoruplift. River morphology can also be affected by human interaction, which is a way the river responds to a new factor in how the river can change its course. An example of human induced change in river morphology is dam construction, which alters the ebb flow of fluvial water and sediment, therefore creating or shrinking estuarine channels.[1]Ariver regime is a dynamic equilibrium system, which is a way of classifying rivers into different categories. The four categories of river regimes are Sinuous canali- form rivers, Sinuous point bar rivers, Sinuous braided rivers, and Non-sinuous braided rivers.
The study of river morphology is accomplished in the field of fluvial geomorphology, the scientific term.
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Large-scale features |
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Alluvial rivers |
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Bedrock river |
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Bedforms |
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Regional processes |
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Mechanics |
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Authority control databases: National ![]() |
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