Wave speed and water depth.

  1. Apr 27, 2009 #1
    I have trouble understanding why water waves tend to speed up for waters deeper than 1/2 wavelength and slow down for waters shallower. I have read it has something to do with how the particle orbit changes to elliptical in shallow waters.

    Why does the particle orbit become a flat ellipse in shallow water and is that the factor influencing the slower wave speed? If not not, what is?
  2. jcsd
  3. Apr 30, 2009 #2
    Does anyone have an answer for this?
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