Abstract
Activity at the coastal areas required accurate tidal analysis and prediction. Tides are a result of the response of the water body to the attracting forces exerted by the moon and sun. In this paper, a new novel wavelet base harmonic model (WBH) for tidal analysis and prediction is presented. Discrete wavelet transformation is being employed to present the relationship between multiresolution analysis and wavelet to show the harmonic amplitude and phase angle as a sum of shifting and scaling functions. The coefficients of the shifting and dilating function are resolved to obtain the harmonic constituent (amplitude and phase angle) of a seawater level. It is found that the predicted tide result obtained at four tide gauge stations using the wavelet-based harmonic model agreed with the observed water tide. To test the efficiency of the model root mean square error the correlation coefficient was used.
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