Abstract
A model explaining the work of a groin system from the viewpoint of mass conservation law is presented. Sediment accretion in groin compartments is estimated in relation with gradients of alongshore sediment flux. Accumulation rate reaches its maximum when the step of groin system is close to the distance of groin influence Λ. If the step tends to 2Λ the accretion of material stops. The optimal relationships between the step of groin system, groin length and width of sediment flux have been obtained. The model allows operational prediction of accumulation volume, beach width and downdrift erosion on time scales from hours until decades. The modeling results are in a reasonable agreement with published data.
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Acknowledgements
The work was fulfilled in a scope of the Government assignment (Theme# № 0128-2021-0004) and partially supported by RFBR (Grant # 18-55-3402 Cuba_t).
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Leont’yev, I.O., Akivis, T.M. (2021). Prediction of Groins Impact on a Sandy Beach. In: Chaplina, T. (eds) Processes in GeoMedia—Volume III. Springer Geology. Springer, Cham. https://doi.org/10.1007/978-3-030-69040-3_19
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DOI: https://doi.org/10.1007/978-3-030-69040-3_19
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