SOURCES OF THE IONOSPHERIC VARIABILITY OVER EUROPE IN WINTER TIME FROM THE IONOSONDE AND GPS/GLONASS DATA

0477414 - ÚFA 2018 RIV RU eng A - Abstrakt
Shpynev, B. - Chernigovskaya, M. - Yasyukevich, A. - Mylnikova, A. - Koucká Knížová, Petra - Kouba, Daniel - Mielich, J. - Kozlovsky, A. - Zolesi, B.
SOURCES OF THE IONOSPHERIC VARIABILITY OVER EUROPE IN WINTER TIME FROM THE IONOSONDE AND GPS/GLONASS DATA.
Second VarSITI General Symposium. Book of Abstracts.. Moscow: FASO Russia, 2017 - (Kurkin, V.). s. 61
[Variability of the Sun and Its Terrestrial Impact (VarSITI) /2./. 10.07.2017-15.07.2017, Irkutsk]
Grant CEP: GA ČR(CZ) GA15-24688S
Institucionální podpora: RVO:68378289
Klíčová slova: atmosphere-ionosphere * ionospheric F2-layer * winter circumpolar vortex * vertical total electron content * wave-like oscillations
Obor OECD: Meteorology and atmospheric sciences
http://varsiti2017.iszf.irk.ru/presentations/VarSITI%20Abstracts.pdf

The latitudinal dependence of ionospheric variability on the configuration and parameters
of high-speed jet streams associated with the winter circumpolar vortex at the stratosphere/lower
mesosphere heights are studied. We conducted a joint analysis of the variations of the
ionospheric F2-layer electron density peak and total electron content (TEC) of the ionosphere
over the mid- and high-latitude regions of Europe in the winter months (November to February)
over 2008–2010 under low solar and geomagnetic activity conditions. The ionosphere
parameters were obtained from measurements made at the meridional chain of European vertical
sounding ionosondes Rome (41.9° N, 12.5° E), Pruhonice (50.0° N, 14.6° E), Juliusruh (54.6° N,
13.4° E), Sodankylä (67.3° N, 26.6° E). The measurements on a network of the phase dualfrequency
GPS/GLONASS receivers located in the range of 40–70° N and 10–30° E were used
to obtain TEC. The calculation of the vertical total electron content from the initial series was
based on the developed absolute TEC model taking into account differential code biases. To
study the dynamics of the winter circumpolar vortex in the Northern Hemisphere, we use the
data from the ECMWF ERA-Interim Reanalysis. The analysis showed the significant increase in
wave-like activity in the stratosphere/lower mesosphere during winter seasons for all analyzed
years. Variations of ionospheric parameters observed at different latitudes depend on the station
positions relative to the jet stream circulation zone.
Trvalý link: http://hdl.handle.net/11104/0273766