Computer Science – Sound
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008em%26p..102..221e&link_type=abstract
Earth, Moon, and Planets, Volume 102, Issue 1-4, pp. 221-229
Computer Science
Sound
2
Atmosphere, Infrasound, Meteor, Meteoroid, Shock Waves
Scientific paper
Recent observations using the newly installed Elginfield infrasound array in coordination with the Southern Ontario all-sky meteor camera network and Canadian Meteor Orbit Radar (CMOR) has shown that the number of meteors producing infrasound at the Earth’s surface is more frequent than previously thought. These data show the flux of meteoroids capable of producing infrasound at the ground is at least 1/month and is limited to meteors with peak visual brightness above -2. Comparisons to current meteor infrasound theory show excellent agreement with amplitude and period predictions for weakly non-linear shock waves using a realistic vertically inhomogeneous atmosphere. Similar predictions show isothermal assumptions underestimate the amplitude by orders of magnitude.
Brown Peter G.
Edwards Wayne N.
ReVelle Douglas O.
Weryk Robert J.
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