Kranky Kirk on Kurrents

From: Bob Galvan (kasplash@crl.com-DeleteThis)
Date: Fri Aug 25 1995 - 19:33:48 PDT


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Date: Fri, 25 Aug 1995 19:33:48 -0700 (PDT)
From: Bob Galvan <kasplash@crl.com-DeleteThis>
To: wind_talk@opus.hpl.hp.com-DeleteThis
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Subject: Kranky Kirk on Kurrents
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Kirk gets out there refering to the "long period tidal wave theory":

>Problem with this analogy, I believe, is that it is WRONG!
>Think a bit. 6 hrs from San Diego (or Hawaii or Equador) to get to the
>Gate and then it slows down enough to take 6 hours to only go a few
>miles? I don't think so. Why would it slow down? What absorbed the
>energy?

No body sez it takes six hours for the tidal crest to get from San Diego
or Hawaii or Equador to here. I made reference to the point of emanation,
called a "gyre" to help y'all visualize the process. Visualize the waves
emanting from the point where you dropped a lucky peso into a pond. The
six hours (approximate and variable) is the time it takes for half the
wave to pass a point. The crest of the wave is perceived on shore as high
tide, and six hours later the trough exposes the rocks and mud at low
tide.

I didn't make any mention as to the speed of the "Tidal Wave" nor do I
intend to. This is a brief, very simplified explaination. There are many
many factors that influence the percieved tide at specific points on shore.
The details are in basic oceanography books.

In Hawaii, the average tide is only a foot or two. I'll go confirm that
now and get back to you in about 2 weeks.

Aloha,
kasplash@crl.com-DeleteThis



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