Re[2]: current laging tide height, why ?

From: kcorr@framatech.com-DeleteThis
Date: Mon Jul 21 1997 - 09:05:20 PDT 

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Date: Mon, 21 Jul 97 11:05:20 -0500
To: <wind_talk@opus.hpl.hp.com-DeleteThis>
Subject: Re[2]: current laging tide height, why ?
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     I think Kirk and Jack are both correct. The bucket water height moves
     up and down leading the current through the hole by a few
     seconds.-Kevin

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Subject: Re: current laging tide height, why ?
Author: <wind_talk@opus.hpl.hp.com-DeleteThis> at INTERNET
Date: 7/21/97 11:12 AM

>I've been using the site at http://www.rahul.net/cgi-bin/stain/tide-charts.cgi
> to check the tide height and current at 3rd and always wonder why the current
> and height of tide are not exactly in sync. Seem to be off by about 1 hour.
>
> Seems to me that the lowest height should be right when the current is done
> leaving (ebb) and vice versa for high/flood. Why 1 hour lag ? (is there
> surface and under water currents in opposite directions ?)
     
I believe it's simply momentum. There is an enormous amount of water
moving through the bay, it takes a while for it to stop when the tidal
pressure has been equalized.
     
-- Jack
     

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