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Nav wrote:
Jeff Morris wrote: The tides at the equator are also reduced by the fact that they actually lag the moon by 6 hours. This is caused by the fact that the "tidal wave" cannot move fast enough through the ocean to keep up. Care to explain that? One explanation I've seen is that the average depth of the ocean does not allow the wave to propagate fast enough at the Equator. http://www.marktovey.co.uk/tidesfull.html#Q16 I've also seen it described in term of the "natural resonance" of the ocean at the equator, which is 30 hours, while the Moon's rotation is a bit over 12 hours, but I'm sure this comes down to the same thing. What I haven't seen described in detail is exactly how much this affect reduces the tides. |
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