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Re: [PSUBS-MAILIST] a passing thought
The motion of water under wave action is roughly cycloidal. The
amplitude is not perceptible in deep water, but increases in shoaling
water - which, for the purpose of a huge soliton like a tsunami wave,
could be deeper than we usually associate with wave action. Once the
bottom shoals enough to make the wave break, the motion becomes more
complex...
As the wave passed, the sub's occupants would presumably feel both
up-and-down and fore-and-aft motion, but because of the constraint of
the interfaces above and below, I would expect the latter to be stronger
than the former. I would not expect the depth gauge to give any
indication of altered static pressure, because the sub's position in the
water column would remain more or less the same.
Further, respondent knoweth not.
Marc
On 5/30/2010 2:11 PM, David Bartsch wrote:
Do you feel it would be a large back and forth motion or that the
depth indicators would show a sudden increase in depth pressure for a
brief moment or both?
David Bartsch
> Date: Sun, 30 May 2010 14:04:14 +0800
> From: piolenc@archivale.com
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] a passing thought
>
> In deep water, you wouldn't notice a thing. In shallow water, you would
> notice a definite surge...
>
> Marc
>
> On 5/30/2010 1:44 PM, David Bartsch wrote:
> > In what seems like a daily increase in seismic activity World wide, I
> > remembered a particular Indonesian tsunami in which entire coastal
> > villages were completely destroyed.
> > Local fishermen upon returning home from a day at sea found the harbors
> > from which their boats operated from were no more and a sea of
> > destruction and debris was all that remained.
> > This enormous wave of energy had passed under them undetected...
> >
> > What would such an event have been like if experienced while submerged
> > in a submarine?
> >
> > David Bartsch
> >
> >
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