Накат длинных уединенных волн различной полярности на плоский откос
We study the runup of long solitary waves of different polarities on a beach in the case of composite bottom topography: a plane sloping beach transforms into a region of constant depth. We confirm that nonlinear wave deformation of positive polarity (wave crest) resulting in an increase in the wave steepness leads to a significant increase in the runup height. It is shown that nonlinear effects are most strongly pronounced for the runup of a wave with negative polarity (wave trough). In the latter case, the runup height of such waves increases with their steepness and can exceed the amplitude of the incident wave.