ON SPECTRUM CALIBRATION FOR NEARSHORE WAVE TRANSFORMATION
AbstractA 'shape-focus' method is proposed for wave spectrum calibration. In this method calibration factors at each frequency bin are derived from measured and modelled data using a least square error approach. Modelled wave spectra are calibrated using the shape-focus method and then applied to a SWAN wave model to simulate nearshore wave transformation. Nearshore wave spectra are then compared with measurements. Results show that spectrum calibration with the shape-focus method improves wave data accuracy significantly for both significant wave height and mean wave periods, thus provides a more accurate solution to calibrating wave spectra for nearshore wave modelling.
Tucker, M.J. (1991): Waves in Ocean Engineering. Measurement, analysis, interpretation. Ellis Horwood. New York, London, pp, 431.
Ardhuin, F., T.H. Herbers, K.P. Watts, G.P. van Vledder, R. Jensen, and H.C. Graber (2007): Swell and Slanting- Fetch Effects on Wind Wave Growth. J. Phys. Oceanogr., 37, pp, 908-931, https://doi.org/10.1175/JPO3039.1