抄録
The multi-level model for nonlinear dispersive waves, in which vertical profile of horizontal velocity is assumed to be a chain of quadratic portions, was modified to obtain applicability to wave analysis on step-like bathymetry. A change in vertical dividing method brought about satisfactory result, in which the depth of vertical dividing interfaces was changed to have no horizontal distribution. The applicability of the modified model was examined by reproduction of experimental result for wave deformation on submerged dike.
