[Rhodes22-list] Estuary Stir-the-Pot

[lcrowther]

Richard,

The Potomac River is also an estuary by your definition (which is correct so
why do they call them the Potomac River and Hudson River?).  The tidal
influence is quite oblivious even above Washington, D.C.  Nobody makes an
issue of the 'estuary' definition even though they seem to know they have to
account for the tidal differences in their planning (they have been known to
say the Potomac is a tidal river).  I never heard anyone tie the venturi
effect or wind funnel effect, which is quite evident just below D.C., to the
fact that the Potomac is an estuary.  Yet it is accepted that increased wind
velocity will add to or decrease the predicted river tidal depths - but then
so does lots of rain in PA eventually.  Do sailors in New York commonly
refer to the Hudson Estuary?

Lloyd


----- Original Message -----
From: "Christine Allison" <sailnut at asan.com>
To: <kroposki at innova.net>; "The Rhodes 22 mail list"
<rhodes22-list at rhodes22.org>
Sent: Thursday, July 24, 2003 3:04 PM
Subject: Re: [Rhodes22-list] Measured Hull Speed


>
> > Which way is the wind effect?>
>
> During the summer the prevailing wind is southerly.  The Hudson River
valley
> runs approximately North/South so the wind follows the rivers course.
When
> the river narrows at the High Lands a venturi effect develops which causes
> the wind velocity to increase.  Sometimes dramatically.
>
> <  Is it the same way as the river>
>
> The Hudson is not a river.  It's an estuary!  Tidal influences are evident
> all the way to it's origin.
>
> Richard Smith
>
>
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