Počet záznamů: 1

Relationship between median intensities of electromagnetic emissions in the VLF range and lightning activity

  1. 1.
    0349141 - UFA-U 2011 RIV US eng J - Článek v odborném periodiku
    Němec, František - Santolík, Ondřej - Parrot, M. - Rodger, C. J.
    Relationship between median intensities of electromagnetic emissions in the VLF range and lightning activity.
    Journal of Geophysical Research. Roč. 115, - (2010), A08315/1-A08315/10 ISSN 0148-0227
    Grant CEP: GA ČR GA205/09/1253; GA ČR GAP205/10/2279; GA MŠk ME09107
    Grant ostatní: MŠMT(CZ) MSM0021620860
    Výzkumný záměr: CEZ:AV0Z30420517
    Klíčová slova: lightning activity * VLF electromagnetic waves * DEMETER satellite
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
    Impakt faktor: 3.303, rok: 2010

    We present results of a survey of VLF electromagnetic waves observed by the DEMETER spacecraft (altitude about 700 km, launched in June 2004, and still operating). The median value of the power spectral density of electric field fluctuations in the frequency range 1–10 kHz is evaluated as a function of the position of the spacecraft, frequency, magnetic local time, and season of the year. It is shown that there are significant seasonal differences between the satellite observed wave intensities throughout the year and it is demonstrated that these are due to the lightning activity changes of the Earth.
    Trvalý link: http://hdl.handle.net/11104/0189457
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