Difference between revisions of "Coast erosion"

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#Redirect[[Coastal erosion]]
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{{Definition|title=Coast erosion
 
|definition= Coast erosion is the process of wearing away material from the coastal profile due to imbalance in the supply and export of material from a certain section. It manifests itself in the scouring in the foot of the cliffs or in the foot of the dunes. Coast erosion occurs mainly during strong winds, high waves and high tides and [[storm surge]] conditions, and results in coastline retreat. The rate of erosion is correctly expressed in volume/length/time, e.g. in m<sup>3</sup>/m/year, but erosion rate is often used synonymously with coastline retreat, and thus expressed in m/year<ref name="Karsten">Mangor, Karsten. 2004. “Shoreline Management Guidelines”. DHI Water and Environment, 294pp.</ref>. <br/><br/>
 
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==Notes==
 
Erosion takes place on the [[shoreface]] and on the [[beach]] if the export is greater than the supply of material, meaning that the level of the seabed and the beach will decrease. The deficit can be due to both cross-shore processes and longshore processes. Erosion due to cross-shore processes mainly occurs during extreme events associated with [[storm surge]], which partially is a reversible process (this is also referred to as [[dune erosion]]). The most important reason for long-term erosion is a deficit in the littoral drift budget, which is often caused by a deficit in supply of sand to the area in question (this process is also referred to as [[structural erosion]]).
 
 
 
 
 
Erosion is an important factor in the process of [[coastal squeeze]] <ref> Doody, J.P. (2004) 'Coastal squeeze' - an historical perspective. ''Journal of Coastal Conservation'', '''10/1-2''', 129-138.</ref>.
 
 
 
==See also==
 
* Articles on different causes of erosion: [[Natural causes of coastal erosion]], [[Human causes of coastal erosion]]
 
* Articles on the background of erosion: [[Coastal Hydrodynamics And Transport Processes]]
 
* Erosion for different coastal types: [[Accretion and erosion for different coastal types]], see also [[Characteristics of sedimentary shores]] (description of different coastal types) and [[Classification of sandy coastlines]] (classification of different coastal types).
 
* [[Dune erosion]]
 
* [[Littoral drift and shoreline modelling]]
 
* [[Biogeomorphology of coastal systems]]: Interaction between ecology and geomorphology of a system
 
* [[Bruun rule for shoreface adaptation to sea-level rise]]
 
* [[Coastal Erosion along the Changjiang Deltaic Shoreline]]
 
 
 
 
 
 
 
==References==
 
<references/>
 

Latest revision as of 21:22, 10 November 2021

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