🚀 go-pugleaf

In article <647.1561.uupcb@synapse.org> steve.crabtree@synapse.org (Steve Crabtree)  writes:
>
>One thing I've never tried to work out is whether the centrifugal hump
>and the gravitational hump are the same size, and further, if they
>are, whether they have to be or whether it's coincidence. I know from
>personal experience (living by the banks of a tidal river) that they
>are approximately equal.
>                                                                                        

Well, living on Puget Sound, I observe that they vary.  Either you
have two relatively moderate high and low tides (ie 8' high, 6' low,
9' high, 5' low) in a 25-hour period, or one extreme and one fairly
moderate tide (ie 12' high, -2' low, 9' high, 7' low) and you transition
between these tide-pairs on a roughly 4-week cycle.  Also, during the
winter you tend to have the extreme high tides during the day; and during
the summer you tend to have the extreme low tides during the day, which
wrecks havoc with boat ramps. :-)

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