Observation of the Solar Eclipse of 20 March 2015 at the Pruhonice station

0475016 - ÚFA 2018 BG eng A - Abstrakt
Mošna, Zbyšek - Boška, Josef - Koucká Knížová, Petra - Chum, Jaroslav - Šindelářová, Tereza - Kouba, Daniel - Potužníková, Kateřina
Observation of the Solar Eclipse of 20 March 2015 at the Pruhonice station.
Book of Abstracts: Ninth Workshop "Solar Influences on the Magnetosphere, Ionosphere and Atmosphere". Sofia: Space Research and Technology Institute, Bulgarian Academy of Sciences, 2017. s. 10.
[Workshop "Solar Influences on the Magnetosphere, Ionosphere and Atmosphere" /9th/. 30.05.2017-03.06.2017, Sunny Beach]
Grant CEP: GA ČR(CZ) GA15-24688S
Institucionální podpora: RVO:68378289
Klíčová slova: ionospheric E layer * ionospheric F region * solar eclipse * Pruhonice observatory * digisonde portable sounder * continuous doppler sounding
Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
http://ws-sozopol.stil.bas.bg/

Response of the atmosphere to the Solar Eclipse on 20 March 2015 is described for midlatitude
region of Czech Republic. For the first time we show join analysis using Digisonde
vertical sounding, manually processed Digisonde drift measurement, and Continuous Doppler
Sounding for the solar eclipse study. The critical frequencies foE, foF1 and foF2 show changes
with different time offset connected to the solar eclipse. Digisonde drift measurement shows
significant vertical plasma drifts in F2 region deviating from daily mean course with amplitudes
reaching 15-20 m/s corresponding to the time of solar eclipse. Continuous Doppler Sounding
shows propagation of waves in the NE direction with velocities between 70 and 100 m/s with a
peak 30 minutes after first contact. We observed increased and persistent wave activity at heights
between 150 and 250 km at time about 20 - 40 minutes after beginning of SE with central period
65 min.

Trvalý link: http://hdl.handle.net/11104/0271898