EVALUATION OF A PARAMETRIC-TYPE WAVE TRANSFORMATION MODEL AGAINST FIELD AND LABORATORY DATA

Alireza Jafari, Nick Cartwright

Abstract


Predicting wave properties via parametric wave propagation models are broadly used in many coastal engineering applications. Numerous researchers have refined these types of models to increase their accuracy including; Battjes and Janssen (1978), Thornton and Guza (1983), Baldock et al. (1998), and Alsina and Baldock (2007). Alsina and Baldock (2007), proposed an improved parametric wave propagation models for a non-saturated surfzone which returns relatively more accuracy in comparison to others. In this paper, the Alsina and Baldock (2007) model along with Baldock et al. (1998) and Thornton and Guza (1983), are applied to data collected in South-East Queensland under stormy and calm conditions as well as laboratory data. Some of the comparisons indicate the need to incorporate some additional energy loss at the break point to account for plunging type breakers where the existing bore dissipation model is insufficient.

Keywords


Wave transformation model; surfzone hydrodynamics; wave energy dissipation; field data; storm condition

References


Alsina, J.M. and Baldock, T.E., (2007). Improved representation of breaking wave energy dissipation in parametric wave transformation models. Coastal Engineering 54 765–769.http://dx.doi.org/10.1016/j.coastaleng.2007.05.005

Baldock, T.E., Holmes, P., Bunker, S. and Van Weert, P., (1998). Cross-shore hydrodynamics within an unsaturated surf zone. Coastal Engineering, 34: 173–196.http://dx.doi.org/10.1016/S0378-3839(98)00017-9

Battjes, J.A. and Janssen, J.P.F.M., (1978). Energy loss and set-up due to breaking of random waves, 16th Int. Conf. on Coastal Engineering ASCE, Hamburg, Germany, pp. 569–587.

Guard, P.A. and Baldock, T.E., (2007). The influence of seaward boundary conditions on swash zone hydrodynamics. Coastal Engineering, 54(4): 321-331.http://dx.doi.org/10.1016/j.coastaleng.2006.10.004

Hwang, L.S. and Divoky, D., (1970). Braking wave set up and decay on gentle slopes, In Proceedings of the 12th international conference on coastal engineering pp. 377-389.

Jafari, A., Cartwright, N. and Nielsen, P., (2011). Stormy Wave Analysis Based on Recorded Field Data on South-East Coasts of Queensland, Australia. Journal of coastal Research, SI 64: 527-533.

LeMehaute, (1962). On Non-Saturated Breakers and the Wave Run-Up, 8th International Conference of Coastal Engineering, New York, pp. 77-92.

Nairn, R.B., (1990). Prediction of cross-shore sediment transport and beach profile evolution, University of London, London, England.

Raubenheimer, B., Guza, R.T. and Elgar, S., (1996). Wave transformation across the inner surf zone. Journal of geophysical research, 101: 25,589-25,597.http://dx.doi.org/10.1029/96JC02433

Ruessink, B.G., Walstraa, D.J.R. and Southgate, H.N., (2003). Calibration and verification of a parametric wave model on barred beaches. Coastal Engineering, 48: 139–149http://dx.doi.org/10.1016/S0378-3839(03)00023-1

Thornton, E.B. and Guza, R.T., (1983). Transformation of Wave Height Distribution. Journal of geophysical research, 88: 5925-5938.http://dx.doi.org/10.1029/JC088iC10p05925

US Army Corps Of Engineers, N., (2002). Coastal Engineering Manual. Analysis.

van Rijna, L.C. et al., (2003). The predictability of cross-shore bed evolution of sandy beaches at the time scale of storms and seasons using process-based Profile models. Coastal Engineering, 47(295–327).http://dx.doi.org/10.1016/S0378-3839(02)00120-5


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