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

    Research output: Contribution to conferencePaper

    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 - Dec 1 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
    CountryGermany
    CityDresden
    Period9/7/099/11/09

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

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  • Cite this

    Pasko, V. P. (2009). Electrostatic mechanism of lightning associated infrasonic pulses from thunderclouds: Comparison of one-dimensional and two-dimensional model results. 329-336. Paper presented at 9th International Conference on Theoretical and Computational Acoustics, ICTCA 2009, Dresden, Germany.