On the thunderstorm of 10 July 2011 at magnetic observatory Budkov

0426322 - GFÚ 2014 RIV ES eng C - Konferenční příspěvek (zahraniční konf.)
Hejda, Pavel - Horáček, Josef - Vlk, Michal - Bayer, Tomáš
On the thunderstorm of 10 July 2011 at magnetic observatory Budkov.
Proceedings of the XVth IAGA workshop on geomagnetic observatory instruments, data acquisition, and processing. Cádiz: Ministerio de defensa, 2013 - (Hejda, P.; Chulliat, A.; Catalán, M.), s. 87-90. Boletín ROA, 03/13. ISSN 1131-5040.
[IAGA Workshop on geomagnetic observatory /15./. Cádiz (ES), 04.06.2013-14.06.2012]
Grant CEP: GA MŠMT LM2010008
Institucionální podpora: RVO:67985530
Klíčová slova: Geomagnetic Observatory Budkov * GDAS variometer * damage caused by lightning
Kód oboru RIV: DE - Zemský magnetismus, geodézie, geografie

The region around Geomagnetic Observatory Budkov suffers from strong thunderstorms. Strong lightning strikes caused severe damage to electric components and the power supply system on 10 July 2011. All magnetometers with the exception of the GDAS were damaged and put out of order. Also all three GDAS components recorded jumps in their values. It was initially supposed that the electric circuits were damaged or that the sensor slightly moved in consequence of the quake caused by the thunder and a falling tree. This hypothesis had to be modified after the jumps had been observed in the data of other variometers and lightning-induced remanent magnetization was indicated as a probable cause of this event.
Trvalý link: http://hdl.handle.net/11104/0232020