Modelling study of the nearshore wave climate In Quy Nhon
Abstract
This paper presents the model results of a wave modelling study using SWAN spectral wave model. The main objectives of the study are to determine nearshore wave climate along the coast of Quy Nhon city. The nearshore wave climate can be then used to provide inputs for the design of the access channel and to assess the siltation rate in the nearshore coastline. A wave model for Quy Nhon has been setup to transform offshore waves to inshore locations. This has been undertaken to derive the normal wave conditions in the existing situation. The SWAN spectral modelling software has been used to transform offshore wave information obtained from NOAA to inshore locations. For the normal conditions, the combined sea and swell wave climate has been considered. The model was validated against measured wave data for a period of most severe monsoon waves, i.e. December 2013. An advanced technique has been used to make it possible to transfer 34 year waves conditions from offshore to nearshore.
Keywords: Nearshore wave climate, Quy Nhon wave, Modelling study, SWAN model, transformation matrix.
Received: July 13th, 2017; revised: August 10th, 2017; accepted: November 2nd, 2017
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