Water impingement on a vertical wall due to discontinuity decay above a drop

The paper reports experimental data on the height of water impingement on a vertical wall during wave reflection due to discontinuity decay above an even bottom and a bottom drop. It is shown that for a bore type wave with a roller in its head, propagating over finite-depth water, the impingement height is proportional to the initial difference in free-surface level. In the case of a “dry bottom” in the tail water, this is also true for other types of waves formed during discontinuity decay.