Shallow Water Waves
Figure 1: Edited from
http://www2.umt.edu/Geology/faculty/hendrix/g100/shallow_deep_waves.jpg
Image courtesy of Chris DuRoss of University of Montana Dept. of Geology
Shallow water waves are
characterized by the depth of the water being at least 20 times smaller than
the wavelength of the wave. This makes the orbits of the water molecules to be
essentially flat, especially at the bottom of the ocean. This way, it preserves
most of its energy while traveling over a flat surface since it the movement of
the water is almost parallel to the surface and friction is very small.