Geomagnetic field effects of the Chelyabinsk meteoroid

Черногор, Л. Ф.

doi:10.1134/s001679321405003x

Cited by 38 publications

(2 citation statements)

References 3 publications

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“…According to literature, the turbulence in the plasma wake of the meteoroid passage can cause a slight increase in the magnetic field [12,50] and references therein. According to [3], it can be estimated as B(R) = B(0) × (w/R) 3 , where B is magnetic field, R is the distance from the meteoroid wake and w is wake diameter.…”

Section: Possible Magnetic Effectsmentioning

confidence: 99%

Assessment of Morelian Meteoroid Impact on Mexican Environment

et al. 2021

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Possible ionospheric effects of the Morelian meteoroid that passed and exploded over Mexico on 19 February 2020 (18 February 2020 local time) were estimated. The meteoroid trajectory, velocity and time of occurrence were calculated based on outdoor camera records. Modeling was used to estimate the meteoroid initial diameter, density, mass, velocity, energy and their change during its flight in the atmosphere. The ensemble of ionospheric scintillation indices calculated from the high-rate GNSS data and the filtered slant Total Electron Content data were used to reveal the presence of ionospheric disturbances generated by shock waves excited by the meteoroid flight and explosion. The first ionospheric responses to phenomena accompanying the meteoroid were detected (2.5–3.5) min after the explosion. The disturbances were attenuated quickly with distance from their source and were rarely recorded by GNSS receivers located more than 600 km from the meteoroid explosion site. The ionospheric disturbances of intermediate-scale, small-scale, shock-acoustic-wave-scale and sometimes medium-scale were revealed. The detected disturbances corresponded to the range of acoustic-gravity waves. An asymmetry of the disturbance manifestation in different directions was observed. The obtained results are in accordance with results of the observation of other meteoroids. Although the object was smaller and of less energy than other known meteoroids, it is an interesting case because, to the best of our knowledge, it isthe first known to us low-latitude meteoroid with the detected ionospheric effects.

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Section: Possible Magnetic Effectsmentioning

confidence: 99%

Assessment of Morelian Meteoroid Impact on Mexican Environment

et al. 2021

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“…Interactions among the subsystems are greatly amplified when the triggering of massive releases of energy from either natural or anthropogenic sources occurs. The former include major geospace storms (Buonsanto, 1999; Carlowicz & Lopez, 2002; Chernogor et al., 2020; Gonzalez et al., 1994; J. Y. Liu et al., 1996; Laštovička & Chum, 2017; Lathuillère et al., 2002), large celestial bodies entering the terrestrial atmosphere (Chernogor, 2014, 2015, 2018; Chernogor & Rozumenko, 2013; Gehrels, 1994; Popova et al., 2013), high‐energy atmospheric processes (Šindelarova, Burešová, & Chum, 2009; Šindelarova, Buresova, et al., 2009; Šindelarova et al., 2015; Kelley & Dao, 2018; Nishioka et al., 2013; Raju et al., 1981; Shao & Lay, 2016), volcano eruptions (C. H. Liu et al., 1982; Roberts et al., 1982), violent earthquakes (J. Y. Liu et al., 2016; Krasnov et al., 2015; Laštovička et al., 2010; S. Pulinets & Boyarchuk, 2004; S. A. Pulinets et al., 2015), and tsunamis (Artru et al., 2005; Galvan et al., 2011, 2012; J. Y. Liu et al., 2006), etc. The anthropogenic sources include powerful chemical and nuclear explosions (Blanc & Jacobson, 1989; Blanc & Rickel, 1989; Calais et al., 1998; Chernogor & Garmash, 2018; Fitzgerald, 1997; Jacobson et al., 1988), large rocket, spacecraft, and aircraft engine burns (Chernogor & Blaunstein, 2013), chemical releases (Haerendel & Sagdeev, 1981; Häusler et al., 1986), and artificial plasma and beams of energetic charged particles injections (Haerendel & Sagdeev, 1981; Häusler et al., 1986).…”

Section: Introductionmentioning

confidence: 99%

Disturbances in the Ionosphere That Accompanied Typhoon Activity in the Vicinity of China in September 2019

et al. 2022

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We have acquired HF Doppler measurements and studied the dynamics of the ionosphere in the ∼100–300 km altitude range during the 1–10 September 2019 period of typhoon activity near the People's Republic of China (PRC). The multifrequency multiple path system located at the Harbin Engineering University campus, the PRC, and probing the ionosphere at oblique incidence was used to identify the effects from the typhoons. The response of the ionosphere to the Typhoon Lingling was detected along three adjacent radio‐wave propagation paths where chaotic and quasiperiodic variations in the Doppler shift and a significant (from −1 to 1 Hz or greater) Doppler spectrum broadening were observed to occur. The Doppler spectrum chaotic variations are due to plasma turbulence generated by typhoons in the ionosphere, and the Doppler shift quasiperiodic variations along the main ray are due to infrasound and atmospheric gravity waves (AGWs) launched by the typhoons. The relative amplitude of quasiperiodic variations in the electron density in the field of the infrasound wave reached several percent, and in the field of the AGW attained from ten to a few tens of percent. The effects of the Typhoon Faxai during 9/10 and 10/11 September 2019 nights were accompanied by a 27% decrease in the electron density in the ionospheric E and F regions. At the closest approach of the Typhoon Faxai to the ionosonde during 8/9 September 2019 night, when it had the largest energy, a 56% increase was detected in the ionospheric F region electron density.

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Space Weather General Concepts

Sergeeva

2022

Space Weather Impact on GNSS Performance

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Geomagnetic field effects of the Chelyabinsk meteoroid

Cited by 38 publications

References 3 publications

Assessment of Morelian Meteoroid Impact on Mexican Environment

Assessment of Morelian Meteoroid Impact on Mexican Environment

Disturbances in the Ionosphere That Accompanied Typhoon Activity in the Vicinity of China in September 2019

Space Weather General Concepts

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