一个二维数值模式被用于研究长江口以外海域的风暴潮与天文潮的非线性相互作用。用这个模式模拟了 1981年 8114号台风与天文潮共同作用下所引起的风暴潮增水。 8114号台风是近 2 0年中最重要的台风之一。该台风登陆点附近有吴淞验潮站 ,这里有完整的风暴潮水位记录。计算结果与该站实测值符合较好 ,说明模拟是成功的。此外 ,从模拟结果中还可得出一些有益的结论 A two-dimensional numerical model was used to study the nonlinear interaction between storm surges and astronomical waves in the waters off the mouth of the Yangtze River. This model simulates the storm surges caused by the joint action of Typhoon 8114 and astronomy tide in 1981. Typhoon 8114 is one of the most important typhoons in the recent 20 years. The typhoon landed near the Wusong tide station, there is a complete record of storm tide. The calculated result is in good agreement with the measured value of the station, indicating that the simulation is successful. In addition, some useful conclusions can be drawn from the simulation results