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Re: What the Tsunami Dredged Up (off topic)
Predictability is comforting.
Yes. The water will recede first. It does with each and every wave
hitting the beach. Children stand and watch the phenomena constantly
when on holiday, dipping their toes in the sand.
Water recedes, in part, because of accommodation space being created
by the rising of a wave as it begins to feel bottom and the wave form
has no where to go but upward. Ergo, the larger the wave coming to
shore, the farther out the water shall recede prior to arrival.
Hence: If the water goes way, way, way far away, exposing a whole lot
of beach and previously water-covered nearshore sediments, then - RUN
AWAY. Preferably - run uphill. Or don't - just stand there. I'll run.
You do whatever you want. In case the concept is unclear - the larger
the incoming wave, the more water that recedes prior to its arrival.
Lots of water receding = BIG wave.
At 5:07 PM +0100 1/16/05, David Marjanovic wrote:
Despite Mr. Marjanovic's assertion, the Laws of Physics still
function without his esteemed permission. The water receded,
before the wave hit the beach.
Erm... pardon??? Do they have to recede first? Does this depend on
whether the Indian plate sinks or the Burma plate rises or both at
once? Does the last of these 3 cases lead to the mountain hitting
first in some places and the valley in others?
I've read/heard some accounts of where people were stuck out on boats when
the water started behaving strangely becoming all swirlly and what not,
which I am told is indicative of the water receding. Another report
supposedly has a young girl, who has just recently learned of Tsunamis at
school, warning her mother about the receding water and thus being able to
evacuate the resort in time.
Where did this happen?