Computation of water levels on the open boundary of tide-surge interaction hydrodynamic model based on LS-SVM

To minimize the difference between the events of storm surges and model of tide-surge interaction hydrodynamic (navier-stoker equation) in shallow water, it´s important to exactly confirm water level of the open boundary. In this study, according to historical record of tide-gage measurements during the storm events, a method based on least squares support vector machine was proposed to predict the open boundary water level of tide-surge interaction hydrodynamic model. Moreover, two regions, Xiamen where typhoon No.0903 landed and Wenzhou typhoon No.0917 landed in, are selected to carry out the water level of open boundary using the LS-SVM model. Comparing with the measurement tidal value during the two storm events, the results show that the method has a high accuracy.