(meteorobs) Anyone doing infrasound monitoring?
epmajden at shaw.ca
Tue Apr 9 17:07:54 EDT 2013
Do a search with "google" for: how to build a microbarometer
There is a description paper on a professional system built in the
Netherlands in PDF format. This of course is very complex and requires a
large area to set such an aray up. An interesting read, however. Peter
Brown's meteor group operates a similar aray at the University of Western
Also have a look at this:
Not sure how effective this would be to detect infra sound from
fireballs but may be worth considering. I would think that the analysis
would be complex. Let me know if your or anyone else is successful doing
this. I was trying to find a low frequency microphone, the type used to
monitor noise around airports but these are too expensive for my budget. I
would think thet would be good to record sonic booms.
Courtenay, B.C. Canada
----- Original Message -----
From: "Thomas Ashcraft" <ashcraft at heliotown.com>
To: "Meteor science and meteor observing" <meteorobs at meteorobs.org>
Sent: Tuesday, April 09, 2013 10:47 AM
Subject: (meteorobs) Anyone doing infrasound monitoring?
>I have started 24 hour continuous all-sky camera video monitoring for
> fireballs in conjunction with my forward scatter radio array. I
> monitored for daylight fireballs some years ago and would check my video
> at times of strong radio fireball receptions but discontinued that
> regimen as I was never able to discern a daylight fireball in the midst
> of sunlight. I did spend some hours at it.
> Also, by some quirk of radio meteor observing there can be a tendency of
> certain low velocity, deep penetrating fireballs that some do not
> register strongly on radio spectrographs. In any case I am back to
> recording all day and checking the video at times of fireball hits.
> But, over the course of the year I occasionally hear sonic booms during
> the day and wonder if some of the booms might be fireball generated. ??
> This then makes me wonder about infrasound monitoring in conjunction
> with video/radio.
> Does anyone do infrasound meteor monitoring? Can a research-grade
> infrasound system be manifested for little money?
> Thanks in advance for any info.
> Thomas Ashcraft - Heliotown - New Mexico
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