Changes in Wave Spectrum under Impact of the Breakwater Construction over the West Sea in Ca Mau Vietnam

It has been years since many measurements were applied to reduce wave energy and protect infrastructure and the coast from erosion through alluvial processes. The common way to test the effectiveness of the protection measurement is based on wave degradation coefficient analysis by considering the wave height (Hs) values in the front and backward of the breakwater constructions. This method is widely used because of its advantage in analyzing the effectiveness of construction directly. However, this method does not provide the wave degradation processes statistically. This study used observation data measured at several constructions at the West Sea in Ca Mau province in Vietnam and applied Fourier spectrum analysis method to deeply investigate the structure and propagation process of wave spectrum and its variation in amplitude and shape under the impact of centrifugal concrete embankment in the tidal area.