Fireball characteristics derivable from acoustic data

12 Feb 2021 Luke McFadden Peter Brown Denis Vida Pavel Spurný

Near field acoustical signals from fireballs (ranges<200 km), when detected by dense ground networks, may be used to estimate the orientation of the trajectory of a fireball (Pujol et al., 2005) as well as fragmentation locations (Kalenda et al., 2014; Edwards and Hildebrand, 2004). Distinguishing ballistic arrivals (from the cylindrical shock of the fireball)from fragmentation generated signals (quasi-spherical sources) remains a challenge, but are obtainable through analysis of the acoustic path and the timing observed at ground instruments... (read more)

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Categories


  • EARTH AND PLANETARY ASTROPHYSICS
  • INSTRUMENTATION AND METHODS FOR ASTROPHYSICS
  • ATMOSPHERIC AND OCEANIC PHYSICS