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Relationship between median intensities of electromagnetic emissions in the VLF range and lightning activity
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SYSNO ASEP 0349141 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Relationship between median intensities of electromagnetic emissions in the VLF range and lightning activity Author(s) Němec, František (UFA-U) RID
Santolík, Ondřej (UFA-U) RID, ORCID
Parrot, M. (FR)
Rodger, C. J. (NZ)Source Title Journal of Geophysical Research - ISSN 0148-0227
Roč. 115, - (2010), A08315/1-A08315/10Number of pages 10 s. Language eng - English Country US - United States Keywords lightning activity ; VLF electromagnetic waves ; DEMETER satellite Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA205/09/1253 GA ČR - Czech Science Foundation (CSF) GAP205/10/2279 GA ČR - Czech Science Foundation (CSF) ME09107 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000281146500003 DOI 10.1029/2010JA015296 Annotation 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. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2011
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