Počet záznamů: 1  

Searching for effects caused by thunderstorms in midlatitude sporadic E layers

  1. 1. 0478336 - UFA-U 2018 RIV GB eng J - Článek v odborném periodiku
    Barta, V. - Haldoupis, C. - Sátori, G. - Burešová, Dalia - Chum, Jaroslav - Pozoga, M. - Berényi, K. A. - Bór, J. - Popek, Martin - Kis, Á. - Bencze, P.
    Searching for effects caused by thunderstorms in midlatitude sporadic E layers.
    Journal of Atmospheric and Solar-Terrestrial Physics. Roč. 161, August (2017), s. 150-159 ISSN 1364-6826
    Grant CEP: GA ČR(CZ) GC15-07281J; GA ČR(CZ) GAP209/12/2440; GA ČR(CZ) GA14-31899S
    Institucionální podpora: RVO:68378289
    Klíčová slova: atmospheric gravity waves * ionosphere coupling * lightning * sporadic E layer * sprites * thunderstorm
    Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
    Obor OECD: Meteorology and atmospheric sciences
    Impakt faktor: 1.492, rok: 2017

    Possible thunderstorm - sporadic E (Es) layer coupling effects are investigated during two measurement periods, one in 2013 and one in 2014. The analysis was based on ionospheric observations obtained from a Digisonde at Pruhonice, the Czech Republic, an ionosonde at Nagycenk, Hungary, and a 3.59 MHz five-point continuous HF Doppler system located in the western part of the Czech Republic. The latter is capable of detecting ionospheric wave-like variations caused by neutral atmospheric waves generated by thunderstorms. The present study searches for possible impacts on Es layers caused by the presence of two active thunderstorms: one passing across the Czech Republic on June 20, 2013 (19:00-01:00 LT), and one through Hungary on July 30, 2014 (11:00-01:00 LT). During these two time periods, presence and parameters of Es layer were inferred from ionograms, recorded every minute at Pruhonice and every two minutes at Nagycenk, whereas concurrent lightning activity was monitored by the LINET detection network. In addition, transient luminous events (TLEs) were also observed during both nights from Sopron, Hungary and from Nydek, the Czech Republic. A noticeable fact was the reduction and disappearance of the ongoing Es layer activity during part of the time in both of the traversing thunderstorms. The analysis indicated that the critical frequency foEs dropped below ionosonde detection levels in both cases, possibly because of thunderstorm activity effects. This option, however, needs more case studies in order to be further substantiated.
    Trvalý link: http://hdl.handle.net/11104/0274424