On 2013-06-03 18:51, Thomas Dick wrote:
> This is for Randy and anyone else working in the area of tornado
> detection on earthquake instruments. There is a technique being used to
> detect tectonic tremors. It was the source of several seminars at Menlo
> Park in the passed year. It compares background noise to small
> earthquake signatures using multiple detecting sites and specific
> frequencies searches. I really think the process could be used to detect
> tornadoes as well. It is math oriented (intensive) and uses computers
> extensively. By nature of our data collection we have the before, the
> now and the after. Supposedly any statistician could set up the math for
> you. It might work.
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interesting, yet, i believe it might be better to
somehow scan the horizon like radar with some
kind of laser which can detect major, yet small,
disturbances within the atmospheres index of refraction.
if you look at zoomed in closeups of a tornado
you can easily see shimmering caused by such disturbance
it is most probably caused by turbulence in air density
as well as velocity ???i mean, one laser device
instead of many seismic devices for any given town.

regards,
geoff
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