Question

A local surf report provides the height of the wave from the trough to the crest of the wave. How does this relate to the wave’s amplitude?

Answer 1

Answer:

The relationship between the provided height of the wave from the trough to the crest of the wave and the wave's amplitude is;

It is about twice the wave amplitude

Explanation:

The amplitude of a wave is the measured distance of a particle on the wave  that moves from the rest position to the point of maximum displacement. Hence it is the distance between the crest or through and the rest position

Therefore, as the surf report provides the height of the wave from the through to the crest of the wave, it is twice about twice the wave amplitude.