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- Title
Infrasonic Observations of Meteoroids: Preliminary Results from a Coordinated Optical-radar-infrasound Observing Campaign.
- Authors
Wayne Edwards; Peter Brown; Robert Weryk; Douglas ReVelle
- Abstract
Abstract  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 Earthâs 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 â2. 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.
- Subjects
ASTRONOMY; ELECTRONIC pulse techniques; METEORS; NUCLEAR physics
- Publication
Earth, Moon & Planets, 2008, Vol 102, Issue 1-4, p221
- ISSN
0167-9295
- Publication type
Article
- DOI
10.1007/s11038-007-9154-6