Machine-translated by Google. Questions are authored in English.
Top

Discussion

Wave runup is

  • A.the depth at which a wave first feels the bottom
  • B.the maximum vertical extent of wave uprush above still water
  • C.the horizontal distance that a wave travels before it finally breaks
  • D.the rise of mean water level inside the surf zone

Answer: B

Correct answer: the maximum vertical extent of wave uprush above still water

Runup is measured vertically from the still water level to the highest point the uprush of an individual wave reaches on the slope. It is what determines the crest level a defence needs, and it depends on the wave height and period and on the roughness and steepness of the slope. It is distinct from setup, which is the raised mean level rather than the excursion of individual waves.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.