基于缓变地形的远程海啸传播模拟的改进

Improvement of Far Distant Tsunami Propagation Based on Slowly Changing Topography

摘要: 在Sung（2002）所提出方案的基础上，考虑了非线性的作用，使得浅水差分方程组的数值解可以近似代替精度较高但却难以计算的Boussinesq方程的理论解，通过实验将新方案与Sung（2002）所提方案进行了比较，表明新方案适用于地形变化的情况。

Abstract: Based on the method proposed by Sung (2002), the effect of nonlinearity is considered. With this method, the Boussinesq equations which have high precision but are difficult to calculate can be replaced by the shallow water equations. The authors compared the new method with the method proposed by Sung （2002）. It is showed that the new method is suitable for the changing topography.