引言 Defant在长渠的潮波方程中引入了分潮波的时间因子exp(-iσt)(其中σ为分潮波的园频率,t为时间变量,i=(-1)~(1/2)),从而建立了不含时间变量的分潮波方程,并首先使用了数值解法。电子计算机问世后,Hansen首先将这一方法推广至二维真实海域——北海,给出了所谓“潮波边值问题”的数值方法。此后,等人又将该方法推广至三维空间的情形。然而,Hansen曾断言,这种分潮波的边值问题方法 Introduction Defant introduces the time factor exp (-iσt) of the tidal wave in the tidal wave equation of the long channel (where σ is the park frequency of the tidal wave, t is the time variable, i = (-1) ~ (1/2 )), So as to establish the tidal wave equation without time-variable, and the numerical solution is first used. After the advent of electronic computers, Hansen first extended this method to the two-dimensional real sea area, the North Sea, and gave a numerical method called the “tidal wave boundary value problem.” Since then, et al. Extended the method to three-dimensional space. However, Hansen asserted that this method of boundary-value problems for tidal waves