Global Warming.



"Bart" wrote in message
ups.com...
This one is worth 5 points.

We all know that primarily the moon, and also
sun and other planetary bodies, to a lessor extent
cause the tidal variations.

For semi-diurnal tides, there is a close correlation
between the highest tide of the day with the following
days tide (two highs later), and also a close correlation
between the lessor tide that day with the lessor tide
on the next day (also two tides later). While the tides
that occur in the same day can have substantially
different highs and lows.

Given that the gravitational forces are close to the
same relative position on a given day, one would
think semi diurnal tides would be the same on a
given day.

Why do the tides sometimes vary more substantially
during the same day compared with subsequent days?

Bonus Question: When would you expect to see the
greatest variation between same day tides?

Explain what causes this effect.