Electrostatic mechanism of lightning associated infrasonic pulses from thunderclouds: Comparison of one-dimensional and two-dimensional model results

Research output: Contribution to conferencePaperpeer-review

Abstract

It has been pointed many decades ago by C. T. R. Wilson [1920] that sudden reduction of the electric field inside a thundercloud immediately following a lightning discharge should produce an infrasound signature. Recently, Pasko [2009] employed a one-dimensional model to study the electrostatic production of 0.1-1 Hz infrasonic waves from thunderclouds, with particular emphasis on the still poorly understood initial compression phase of the observed infrasonic waveforms. In the present work the results presented in Pasko [2009] are generalized for a two-dimensional cylindrically symmetric case in order to emphasize effects of the finite horizontal extent of the thundercloud source on directionality and morphology of infrasonic pulses observed on the ground.

Original languageEnglish (US)
Pages329-336
Number of pages8
StatePublished - 2009
Event9th International Conference on Theoretical and Computational Acoustics, ICTCA 2009 - Dresden, Germany
Duration: Sep 7 2009Sep 11 2009

Other

Other9th International Conference on Theoretical and Computational Acoustics, ICTCA 2009
Country/TerritoryGermany
CityDresden
Period9/7/099/11/09

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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