边界条件的处理是数值计算中的重要问题之一。在潮波数值计算中,边界条件的处理方法不同,会造成计算结果的重大差异。因此,潮波计算必须选择较好的边界模拟方法。数值结果对实测结果的良好逼近,在开边界附近以及开阔海洋,是比较容易得到的。但在远离开边界的某些边界点,尤其在水浅潮弱的区域,就不容易得到。在渤海潮波计算中我们发现, The treatment of boundary conditions is one of the most important problems in numerical calculation. In the tidal wave numerical calculation, the boundary conditions are treated differently, which will cause significant differences in the calculated results. Therefore, the tidal wave calculation must choose the better boundary simulation method. The good approximation of the numerical results to the measured results is relatively easy to obtain near the open boundary and the open ocean. However, some border points that are far from the border are not readily available, especially in shallow water and weak areas. In the Bohai tidal wave calculation we found that,