Ionospheric Effects of a Solar Eclipse of March 20, 2015 on Oblique Sounding Paths in the Eurasian Longitudinal Sector

Some Features of the Ionospheric Radio Wave Characteristics Over China Observed During the Solar Eclipse of 21 June 2020

“…The effects that solar eclipses have on radio wave characteristics have been studied to a significantly lesser degree. These issues have been addressed by Kascheev et al (2009), Garmash et al (2011), Chen et al (2015), Uryadov et al (2016), Cohen et al (2018), and Rozhnoi et al (2020).…”

Characteristics of traveling ionospheric disturbances from incoherent scatter data

“…The effects of the solar eclipse occurring on 20 March 2015 are reported in a number of papers (e.g., [Chernogor, 2016;Uryadov et al, 2016;Verhulst et al, 2016;Marlton et al, 2016;Stankov et al, 2017]). The eclipse-induced meteorological changes over the United Kingdom are presented in a special issue [Hanna et al, 2016].…”

“…The specific formations such as the main ionospheric trough that is a region of low electron density also exist. The authors [Tumanova et al, 2016] found changes in such parameters of the ionospheric trough as location, depth and width to be depended on the level of geomagnetic activity. The characteristics of the ionosphere also experience the latitude variations.…”

About Factors of Solar Radiation Affecting the Ionosphere

“…The data of maximum applicable frequency for oblique sounding trajectories MOF have been determined using an ionosonde-direction finder with chirp signal on the Cyprus-Nizhny Novgorod chirp-sounding path. This device measures the key characteristics of the ionospheric channel simultaneously in real time over the entire range of transmission frequencies of HF radio signals in all propagation modes (Uryadov et al 2016). For example, Figure 1 illustrates the chirp-sounding pass Cyprus-Nizhny Novgorod (a) and the behaviour of differential parameters Δf 0 F 2 (b) and ΔMOF (c) for March 1-18, 2015.…”