Solar periodicities detected within neutral atmospheric and ionospheric parameters

0475014 - ÚFA 2018 BG eng A - Abstrakt
Koucká Knížová, Petra - Georgieva, K. - Mošna, Zbyšek - Kozubek, Michal - Kouba, Daniel - Kirov, B. - Potužníková, Kateřina - Boška, Josef
Solar periodicities detected within neutral atmospheric and ionospheric parameters.
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. 8.
[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: vertical coupling * upper atmosphere-ionosphere system * middle atmosphere * atmospheric waves * wavelet transform coherence
Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
http://ws-sozopol.stil.bas.bg/

We have analyzed time series of solar data together with the atmospheric and ionospheric
measurements for solar cycles 19 till 23 according to particular data availability. For the analyses
we have used long term data with 1-day sampling. By mean of Continuous Wavelet Transform
(CWT) we have found common spectral domains within solar and atmospheric and ionospheric
time series. Further we have identified terms when particular pairs of signals show high
coherence applying Wavelet Transform Coherence (WTC). Despite wide oscillation ranges
detected in particular time series CWT spectra we found only limited domains with high
coherence by mean of WTC. Wavelet Transform Coherence reveals significant high power
domains with stable phase difference for periods 1 month, 2 months, 6 months, 1 year, 2 years
and 3 years between pairs of solar data and atmospheric and ionospheric data. The detected
domains vary significantly during particular solar cycle (SC) and from cycle to the following
one. It indicates the changing solar forcing and/or atmospheric sensitivity with time.
Trvalý link: http://hdl.handle.net/11104/0271896