Re: [Paddlewise] Tides and Current Speed

From: Dave Kruger <kdruger_at_pacifier.com>
Date: Wed, 28 Oct 2009 14:58:21 -0700
Craig Jungers wrote:

> But it is interesting that no one knows if anyone has studied this. I 
> figured you'd know for sure. :P

Well, as I think I mentioned, the detailed, full-cycle long term data were 
gathered for selected narrows and used to develop the basic algorithm, 
which was then extended to other localities.

Then what happened, pretty sure, was that the algorithm chosen was one 
selected for ease of use and accuracy at highest flows and slacks, at the 
sacrifice of detailed accuracy in the midrange of current.  In short, they 
elected to cut and run, given the influence of other variables on the 
actual current at the surface.  You probably know that fresh water inputs 
from other sources and stratification will result in differing currents at 
depth than occur at the surface.  Of course, we care about the surface current.

As to the possibility of a FUD thesis, you're not too past your prime for 
that, Craig -- go for it!

-- 
Dave Kruger
Astoria, OR
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Received on Wed Oct 28 2009 - 14:58:13 PDT

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