SEASONAL SHORELINE VARIATIONS BY CROSS-SHORE TRANSPORT IN A ONE-LINE MODEL UNDER RANDOM WAVES

Hans Hanson; Magnus Larson

doi:10.9753/icce.v26.%p

No. 26 (1998), Conference Proceedings

No. 26 (1998)

SEASONAL SHORELINE VARIATIONS BY CROSS-SHORE TRANSPORT IN A ONE-LINE MODEL UNDER RANDOM WAVES

Conference Proceedings

Published 1998-01-29

Hans Hanson⁺⁻
Magnus Larson⁺⁻

Hans Hanson

Dept. of Water Res. Engrg., Univ. of Lund

Magnus Larson

Dept. of Water Res. Engrg., Univ. of Lund

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Keywords

seasonal variations
random waves
ONE-LINE
crossshore transport
transport model

How to Cite

SEASONAL SHORELINE VARIATIONS BY CROSS-SHORE TRANSPORT IN A ONE-LINE MODEL UNDER RANDOM WAVES. (1998). Coastal Engineering Proceedings, 1(26). https://doi.org/10.9753/icce.v26.%p

Abstract

An algorithm for representing seasonal variations in shoreline position as caused by on-offshore sediment transport in a one-line model is presented. The study was based on an analysis of an 11-year long time series of waves and shoreline location obtained at Duck, North Carolina. Two different approaches were used: one was based on wave steepness and dimensionlessfa.il speed and the other on ratio of the maximum near-bottom orbital velocity to the critical velocity required to initiate sediment movement. Both applications showed that it is possible to reproduce the overall spatial and temporal behavior of seasonal cross-shore transport related shoreline variation using two simple one-line model compatible approaches. Preliminary calculations show that the method may be used for analyzing the seasonal behavior of a beach. At the same time, the impact of individual storms are not represented to any significant degree.

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SEASONAL SHORELINE VARIATIONS BY CROSS-SHORE TRANSPORT IN A ONE-LINE MODEL UNDER RANDOM WAVES

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