Diagnostics of the magnetosphere based on the outer belt relativistic electrons and penetration of solar protons: A review

Tverskaya, L. V.

doi:10.1134/s0016793211010142

Cited by 23 publications

(13 citation statements)

References 34 publications

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“…The behavior of plasma pressure during the 1 June 2013 geomagnetic storm can be analyzed in terms of the development of the RC under the condition of magnetostatic equilibrium. Tverskaia (1986) experimentally established that the position of the maximum of electron injections during a geomagnetic storm (L max ) is related to the minimum in the D st variation as |D st,min | = cL −4 max , with c = 2.75 · 10 4 . This relation was then explained in the theoretical works developed by Tverskoy (1997) and Antonova (2006).…”

Section: Discussionmentioning

confidence: 99%

Multisatellite Analysis of Plasma Pressure in the Inner Magnetosphere During the 1 June 2013 Geomagnetic Storm

et al. 2019

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Using data from Defense Meteorological Satellite Program 16–18, National Oceanic and Atmospheric Administration 15–19, and METOP 1–2 satellites, we reconstructed for the first time a two‐dimensional statistical distribution of plasma pressure in the inner magnetosphere during the 1 June 2013 geomagnetic storm with time resolution of 6 hr. Simultaneously, we used the data from Van Allen Probes and Time History of Events and Macroscale Interactions missions to obtain the in situ plasma pressure in the equatorial plane. This allowed us to corroborate that the dipole mapping works reasonably well during the storm time and that variations of plasma pressure are consistent at low and high altitudes; namely, we observed a drastic increase in plasma pressure a few hours before the storm onset that continued during the storm main phase. Plasma pressure remained elevated during the first 18 hr of the recovery phase and then started to decrease to normal levels. We found that the variation in pressure correlates with the change in the slope of the Dst index, and that the plasma pressure nearly conserved its axial symmetry during the storm, giving one more evidence that the ring current provides the main contribution to the Dst variation. We also found that the plasma pressure in the magnetosphere correlates with the solar wind dynamic pressure with a correlation coefficient exceeding 0.9, which can be related to the pressure balance at the magnetospheric flanks. The results obtained here agree with the concept of the ring current generation by an inner magnetosphere plasma ring in magnetostatic equilibrium.

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Section: Discussionmentioning

confidence: 99%

Multisatellite Analysis of Plasma Pressure in the Inner Magnetosphere During the 1 June 2013 Geomagnetic Storm

et al. 2019

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“…The Tverskaya ( 1986 ) relation has been validated by many researches for magnetic storms with well-defined main and recovery phases (see Tverskaya 2011 ; Kuznetsov et al 2002 ; Slivka et al 2006 ; Moya et al 2017 and references therein). Recently, Antonova and Stepanova ( 2015 ) proved this relation for the October 2012 magnetic storm, an event in which the position of the ORB maximum (maximum of the phase space density of relativistic electrons after the storm) was clearly determined by Reeves et al ( 2013 ).…”

Section: Introductionmentioning

confidence: 91%

“…One of such long-standing problems in magnetospheric physics is the acceleration of relativistic electrons in the outer radiation belt (ORB). Acceleration of electrons during magnetic storms is well established (see Reeves 1998 ; Tverskaya 2011 and multiple other works). However, strong substorm activity without storms can also lead to relativistic electron enhancements (Kim et al 2015 ; Hajra et al 2015 ; Pinto et al 2018 ).…”

Section: Introductionmentioning

confidence: 96%

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Processes in auroral oval and outer electron radiation belt

Антонова

Stepanova

Moya

et al. 2018

Earth Planets Space

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We have analyzed the role of auroral processes in the formation of the outer radiation belt, considering that the main part of the auroral oval maps to the outer part of the ring current, instead of the plasma sheet as is commonly postulated. In this approach, the outer ring current is the region where transverse magnetospheric currents close inside the magnetosphere. Specifically, we analyzed the role of magnetospheric substorms in the appearance of relativistic electrons in the outer radiation belt. We present experimental evidence that the presence of substorms during a geomagnetic storm recovery phase is, in fact, very important for the appearance of a new radiation belt during this phase. We discuss the possible role of adiabatic acceleration of relativistic electrons during storm recovery phase and show that this mechanism may accelerate the relativistic electrons by more than one order of magnitude.

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“…It has been shown in early studies that the penetration distance of electrons (with energies 1 MeV-15 MeV) into the slot region has a correlation with the daily minimum value of Dst (Tverskaya, 2011). Recent extensive statistical study of the variability of radiations belts associated with the geomagnetic activity during Van Allen Probes mission period has been presented in Turner et al (2019).…”

Section: Accepted Articlementioning

confidence: 99%

Dynamics of Electron Flux in the Slot Region and Geomagnetic Activity

Nikitina

Trichtchenko

2021

Space Weather

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Electron flux in the slot region was analysed based on highly elliptical orbit satellite data for 1998 -2007 • Frequency and intensity of slot filling events were determined for different levels of geomagnetic activity • Geomagnetic indices better suited for assessment of electron flux in the slot region were identified Accepted ArticleThis article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

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Diagnostics of the magnetosphere based on the outer belt relativistic electrons and penetration of solar protons: A review

Cited by 23 publications

References 34 publications

Multisatellite Analysis of Plasma Pressure in the Inner Magnetosphere During the 1 June 2013 Geomagnetic Storm

Multisatellite Analysis of Plasma Pressure in the Inner Magnetosphere During the 1 June 2013 Geomagnetic Storm

Processes in auroral oval and outer electron radiation belt

Dynamics of Electron Flux in the Slot Region and Geomagnetic Activity

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