American Society of Civil Engineers


Wave Chronology Effects on Long-Term Shoreline Erosion Predictions


by Ping Dong, (Lect., Dept. of Civ. Engrg., Univ. of Dundee, Dundee DD1 4HN, U.K.) and Huixin Chen, (Res. Asst., Dept. of Engrg., Univ. of Cambridge, Cambridge, U.K.)

Journal of Waterway, Port, Coastal and Ocean Engineering, Vol. 127, No. 3, May/June 2001, pp. 186-189, (doi:  http://dx.doi.org/10.1061/(ASCE)0733-950X(2001)127:3(186))

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Document type: Technical Note
Abstract: This note presents some initial analysis of the chronology effect on critical shoreline erosion statistics using a recently developed numerical model. A 16-year hindcast wave data set from the East Coast of England was used as input to the model, and simulations were carried out for a 4-year subset of the data. By comparing predictions obtained using a number of alternative methods to generate the input-wave time series, the influence of wave climate statistics and wave sequencing on shoreline erosion predictions were clarified. The computational results have shown that the shoreline evolution is primarily a wave-climate-dependent process for both short and long terms. It was also found that the prediction of the long-term wave chronology effect on the shoreline erosion statistics is affected little by the methods used to generate the input-wave time series as long as the long-shore and cross-shore recessions have distinctly different time scales and can be evaluated separately.


ASCE Subject Headings:
Shoreline changes
Erosion
Predictions
Water waves
Numerical models
United Kingdom