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Fluvial is used in geography
Geography

Geography is the study of the Earth and its lands, features, inhabitants, and phenomena. A literal translation would be "to describe or write about the Earth"....
 and earth science
Earth science

Earth science , is an all-embracing term for the sciences related to the planet Earth . It is arguably a special case in planetary science, the Earth being the only known life-bearing planet....
 to refer to the processes associated with rivers and streams and the deposits and landforms created by them. When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial is used.

ion by moving water happens in two ways. First, the movement of water across the bed has an effect (This is called hydraulic action).






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Fluvial is used in geography
Geography

Geography is the study of the Earth and its lands, features, inhabitants, and phenomena. A literal translation would be "to describe or write about the Earth"....
 and earth science
Earth science

Earth science , is an all-embracing term for the sciences related to the planet Earth . It is arguably a special case in planetary science, the Earth being the only known life-bearing planet....
 to refer to the processes associated with rivers and streams and the deposits and landforms created by them. When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial is used.

Fluvial processes

Erosion by moving water happens in two ways. First, the movement of water across the bed has an effect (This is called hydraulic action). Second, the sediment being transported in the river wears away the bed (Abrasion) and the fragments themselves are ground down becoming smaller and more rounded (Attrition).

The sediment is transported as either bedload (The coarser fragments which move close to the bed) and the suspended load (Finer fragments carried in the water). There is also a component carried as dissolved material.

For each grain size there is a specific velocity at which the grains start to move, called Entrainment velocity. However the grains will continue to be transported even if the velocity falls below the entrainment velocity due to the reduced (or removed) friction between the grains and the river bed. Eventually the velocity will fall low enough for the grains to be deposited. This is shown by the Hjulstrøm curve.

See also


Fluvial processes

  • Erosion
    Erosion

    For morphological image processing operations, see Erosion 'For use of in dermatopathology, see Erosion Erosion is the removal of solids in the natural environment....
    • Downcutting
      Downcutting

      Downcutting, also called erosional downcutting or downward erosion or vertical erosion is a geology process that deepens the Channel of a stream or valley by removing material from the stream's bed or the valley's floor....
  • Saltation
    Saltation (geology)

    In geology, saltation is a specific type of particle transport by fluids such as wind, or the denser fluid water. It occurs when loose material is removed from a bed and carried by the fluid, before being transported back to the surface....
  • Solution
    Solution

    In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is dissolved in another substance, known as a solvent....
  • Suspension
    Suspension (chemistry)

    In chemistry, a suspension is a heterogeneous fluid containing solid particles that are sufficiently large for sedimentation. Usually they must be larger than 1 micrometre....
This is also related to multistory deposits

Fluvial landforms

  • bar
    Bar (landform)

    A shoal or sandbar is a somewhat linear landform within or extending into a body of water, typically composed of sand, silt or small pebbles....
  • basin
    Drainage basin

    A drainage basin is an extent of land where water from rain or snow melt drains downhill into a body of water, such as a river, lake, reservoir, estuary, wetland, sea or ocean....
  • confluence
    Confluence (geography)

    Confluence, in geography, describes the meeting of two or more bodies of water. It usually refers to the point where a tributary joins a more major river, called the mainstem , when that major river is also the highest Strahler Stream Order in the drainage basin....
  • cutbank
    Cutbank

    CutBank is a Literary magazine that is affliated with the University of Montana's creative writing program. The journal was founded in 1973 in literature with the help of William Kittredge among others....
  • delta
    River delta

    A delta is a landform that is created at the mouth of a river where that river flows into an ocean, sea, estuary, lake, reservoir, flat arid area, or another river....
  • flood plain
  • gorge and canyon
    Canyon

    A canyon, or gorge, is a deep valley between cliffs often carved from the landscape by a river. Most canyons were formed by a process of long-time erosion from a plateau level....
  • gully
    Gully

    A gully is a landform created by running water erosion sharply into soil, typically on a hillside. Gullies resemble large ditches or small valleys, but are metres to tens of metres in depth and width....
  • meander
    Meander

    A meander in general is a bend in a sinuosity watercourse, also known as an oxbow loop, or simply an oxbow. A meander is formed when the moving water in a river erodes the outer banks and widens its valley creating a meander....
  • natural levee
    Levee

    A levee, lev?e, dike , embankment, floodbank or stopbank is a natural or artificial slope or wall to regulate water levels....
  • ox-bow lake
  • point bar
    Point bar

    A point bar is a depositional feature of streams. Point bars are found in abundance in mature or Meander streams. They are crescent-shaped and located on the inside of a stream bend....
  • natural pool
  • riffle
    Riffle

    A riffle is a shallow stretch of a river or stream, where the current is above the average stream velocity and where the water forms small rippled waves as a result....
  • river
    River

    A river is a natural stream of water, usually freshwater, flowing toward an ocean, a lake, or another stream. In some cases a river flows into the ground or dries up completely before reaching another body of water....
  • spring
    Spring (hydrosphere)

    A spring is a point where groundwater flows out from the ground, and is thus where the aquifer surface meets the ground surface.Dependent upon the constancy of the water source , a spring may be ephemeral or Perennial stream ....
  • stream
    Stream

    A stream is a body of water less than 60 feet wide with a current , confined within a stream bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as brook, beck, Burn , creek, crick, kill, lick , rill, river syke, bayou, rivu...
  • stream terrace
    Stream terrace

    Stream terraces are relict features, such as floodplains, from periods when a stream was flowing at a higher elevation and has downcutting to a lower elevation....
  • valley
    Valley

    In geology, a valley is a Depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge....
     and vale
    Vale

    In geography, a vale is a wide river valley, usually with a particularly wide flood plain or flat valley bottom. Vales commonly occur between the escarpment slopes of pairs of chalk downs, where the chalk dome has been erosion, exposing less Geological resistance underlying rock, usually clay....
  • waterfall
    Waterfall

    A waterfall is usually a geology geologic formation resulting from water, often in the form of a stream, flowing over an erosion-resistant rock formation that forms a nickpoint, or sudden break in elevation....
  • watershed
    Drainage basin

    A drainage basin is an extent of land where water from rain or snow melt drains downhill into a body of water, such as a river, lake, reservoir, estuary, wetland, sea or ocean....


See also

list of landforms
List of landforms

Landforms are categorised by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure, and soil type....
 for a complete list