Reanalysis of the Historic AFTAC Bolide Infrasound Database |
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| Authors: | Douglas O ReVelle Elizabeth A Sukara Wayne N Edwards Peter G Brown |
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| Institution: | (1) Atmospheric, Climate and Environmental Dynamics Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory (LANL), Los Alamos, NM 87545, USA;(2) Department of Physics and Astronomy, University of Western Ontario (UWO), London, ON, Canada, N6A 3K7 |
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| Abstract: | We have recently digitized and partially reanalyzed the historic bolide infrasonic database. These 10 events were originally
detected by the U.S. Air Force Technical Applications Center (AFTAC) from ∼1960 to 1974. In this paper we present the first
preliminary reanalysis results for two of the 10 bolide events, namely the Revelstoke bolide of 3/31/1965 as well as the Prince
Edward Islands (P.E.I). S. African bolide of 8/03/1963, which were among the largest bolides detected during this time period.
These bolides have been investigated initially since they are most likely to have had a significant effect on the computed
global influx rate of ReVelle (Global Infrasonic Monitoring of Large Bolides, pp 483–490, 2001) as indicated in Brown et al. (Nature, 420:314–316, 2002). We are in the process of recomputing all relevant infrasonic propagation quantities such as plane wave back azimuth, signal
velocities, power spectra, spectrograms, as well as energy estimates using multiple techniques. In a future paper we will
present a complete digital reanalysis of the AFTAC bolide infrasonic data and its final resulting global bolide influx implications. |
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| Keywords: | Bolides Infrasound AFTAC Atmospheric acoustic-gravity waves Global influx rate of large meteor-fireballs |
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