Acoustic-Gravity Waves from Bolide Sources

  • Douglas O. ReVelleEmail author
Chapter 3: Meteor-Atmosphere Interactions


We have developed a new approach to modeling the acoustic-gravity wave (AGW) radiation from bolide sources. This first effort involves entry modeling of bolide sources that have available satellite data through procedures developed in ReVelle (Earth Moon Planets 95, 441–476, 2004a; in: A. Milani, G. Valsecchi, D. Vokrouhlicky (eds) NEO Fireball Diversity: Energetics-based Entry Modeling and Analysis Techniques, Near-earth Objects: Our Celestial Neighbors (IAU S236), 2007b). Results from the entry modeling are directly coupled to AGW production through line source blast wave theory for the initial wave amplitude and period at \(x=10\) (at 10 blast wave radii and perpendicular to the trajectory). The second effort involves the prediction of the formation and or dominance of the propagation of the atmospheric Lamb, edge-wave composite mode in a viscous fluid (Pierce, J. Acoust. Soc. Amer. 35, 1798–1807, 1963) as a function of the source energy, horizontal range and source altitude using the Lamb wave frequency that was deduced directly during the entry modeling and that is used as a surrogate for the source energy. We have also determined that Lamb wave production by bolides at close range decreases dramatically as either the source energy decreases or the source altitude increases. Finally using procedures in Gill (Atmospheric-Ocean Dynamics, 1982) and in Tolstoy (Wave Propagation, 1973), we have analyzed two simple dispersion relationships and have calculated the expected dispersion for the Lamb edge-wave mode and for the excited, propagating internal acoustic waves. Finally, we have used the above formalism to fully evaluate these techniques for four large bolides, namely: the Tunguska bolide of June 30, 1908; the Revelstoke bolide of March 31, 1965; the Crete bolide of June 6, 2002 and the Antarctic bolide of September 3, 2004. Due to page limitations, we will only present results in detail for the Revelstoke bolide.


Bolides Atmospheric acoustic-gravity waves Revelstoke meteorite fall of March 31, 1965; Crete bolide of June 6, 2002; Antarctic bolide of September 3, 2004, Tunguska bolide of June 30, 1908 Atmospheric dispersion of Lamb waves Atmospheric dispersion of acoustic waves Weak shock wave propagation in a nonisothermal model atmosphere Formation and dominance of Lamb waves from explosions Dirac delta function source Heaviside step function source 


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© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Atmospheric, Climate and Environmental Dynamics Group, Earth and Environmental Sciences DivisionLos Alamos National LaboratoryLos AlamosUSA

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