Low-Frequency Atmospheric Acoustic Energy Associated with Vortices Produced by Thunderstorms

  title={Low-Frequency Atmospheric Acoustic Energy Associated with Vortices Produced by Thunderstorms},
  author={Alfred J. Bedard},
  journal={Monthly Weather Review},
  • A. Bedard
  • Published 2005
  • Environmental Science, Physics
  • Monthly Weather Review
An infrasonic observatory collocated with the Colorado State University CHILL radar during the summer of 1995 permitted unique comparisons between severe storm kinematics and detected acoustic energy at subaudible frequencies near 1 Hz. Radar observations of a velocity couplet aloft (evolving into a tornado) showed a circulation maximum descending for about 30 min while moving to the east. The detected infrasound followed the trend of these observations. A model of sound radiated from vortex… 
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