The Planetary Wave Activity in Temperatures of the Stratosphere, Mesosphere and in Critical Frequencies of Ionospheric F2 Layer

Abstract

A large body of experimental evidence lends credit to the existence of a close relationship between ionospheric parameters and the underlying atmosphere. Vertical-incidence ionospheric sounding data and temperature measurements at stratospheric (30 km) and mesospheric (80 km) heights have been used in investigating the interrelation between the occurrence of fluctuations with periods of planetary waves in temperature variations at different heights and inF2layer critical frequency variations (foF2) under low solar activity conditions for the time interval 2006-2007. The distinctive characteristics of the manifestation of common periodicities of the wave structures under consideration are discussed. The statistically significant periods of stratospheric and mesospheric temperature fluctuations vary from 11 to 49 days, whereas foF2 periodograms show higher-frequency fluctuations with periods of 5, 8, 9, and 10 days. The study revealed a similarity between periodic structures for the variations in the parameters involved.

Meteorological effects of ionospheric disturbances from vertical radio sounding data

“…Then, the CPV splits into several weaker vortices or shifts from its normal location over the pole. SSW events are usually accompanied by significant intensification of different-timescale wave-like disturbances that penetrate to the ionosphere heights under certain conditions and manifest themselves as TIDs (Pedatella and Forbes, 2010;Polekh et al, 2011;Pancheva and Mukhtarov, 2011;Yiğit and Medvedev, 2012;Tolstikov et al, 2014;Polyakova et al, 2014).…”

On the Nature of the Intraseasonal Variability of Nighttime Ionospheric Irregularities Over Taiwan

“…Planetary-scale variations of the background ionospheric parameters, like foF2, hmF2, h'F, and foEs, has already been investigated in detail (Chernigovskaya, 2011;Fagundes et al, 2005;Haldoupis et al, 2004;Lastovicka et al, 2003;Pancheva et al, 2003). The impact of Kelvin waves in the variability of ionospheric scintillations and total electron content has recently been investigated (Chang et al, 2011).…”

Planetary wave-like oscillations in the ionosphere retrieved with a longitudinal chain of ionosondes at high northern latitudes

“…Many investigations have found planetary wavelike oscillation in ionospheric parameters, particularly f 0 F2, at periods between 2 and 20 days (e.g. Altadill, 1996Altadill, , 2000Borries et al, 2007;Forbes and Leveroni, 1992;Pancheva and Lysenko, 1988;Pancheva and Mukhtarov, 2012;Polekh et al, 2011;Shalimov et al, 2006), leading to the suggestion that planetary waves in the lower atmosphere are coupling to the ionospheric electron density. The presence of these oscillations is puzzling since model investigations show that planetary waves with these periods do not directly propagate above approximately 110 km (Forbes, 1995;Hagan et al, 1993;Pogoreltsev et al, 2007).…”