Received: from opus.hpl.hp.com (opus-fddi.hpl.hp.com) by jr.hpl.hp.com with ESMTP (1.37.109.24/15.5+ECS 3.3+HPL1.1) id AA039661194; Tue, 2 Feb 1999 10:46:35 -0800 Return-Path: <poulton@zonker.hpl.hp.com-DeleteThis> Received: from zonker.hpl.hp.com (zonker-fddi.hpl.hp.com) by opus.hpl.hp.com with ESMTP (1.37.109.24/15.5+ECS 3.3+HPL1.1) id AA265011181; Tue, 2 Feb 1999 10:46:21 -0800 Received: (from poulton@localhost) by zonker.hpl.hp.com (8.8.6/8.7.1) id KAA00483 for wind_talk@opus.hpl.hp.com-DeleteThis; Tue, 2 Feb 1999 10:46:21 -0800 (PST) Date: Tue, 2 Feb 1999 10:46:21 -0800 (PST) From: Ken Poulton <poulton@zonker.hpl.hp.com-DeleteThis> Message-Id: <199902021846.KAA00483@zonker.hpl.hp.com-DeleteThis> To: wind_talk@opus.hpl.hp.com-DeleteThis Subject: Re: Wanted: Project Lead for Coyote Point situation Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit
> I imagine a report with the following format:
>
> 1) describe why Coyote is a irreplacable resource for windsurfing
>
> 2) Challenge definition of 'significant impact' as being a reduction in wind
> velocity of 10% or more.
>
> 3) Suggest another definition of significant impact
>
> 4) Challenge methodology/results of wind tunnel test
>
> 5) Suggest another means to estimate impact of buildings
>
> 6) Suggest mitigation Measures
Good plan.
> If we are going to pick
> a percentage chnage in velocity, maybe 20-25% is more reasonable since that is
> roughly ( in my estimation) the amount of change in wind velocity that pushes
> one up or down a sail size.
My sail sizes are 3 knots apart - 15%. I think their 10% is a good number
to use.
Harder to quantify, but just as important is the gustiness (turbulence)
caused by the buildings.
Ken Poulton
poulton@opus.hpl.hp.com-DeleteThis
"Contrariwise", continued Tweedledee, "If it was so, it might be;
and if it were so, it would be; but as it isn't, it ain't. That's logic."
-- Lewis Carroll
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