The Response of Earth's Electron Radiation Belts to Geomagnetic Storms : Statistics From the Van Allen Probes Era Including Effects From Different Storm Drivers

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Turner , D L , Kilpua , E K J , Hietala , H , Claudepierre , S G , O'Brien , T P , Fennell , J F , Blake , J B , Jaynes , A N , Kanekal , S , Baker , D N , Spence , H E , Ripoll , J-F & Reeves , G D 2019 , ' The Response of Earth's Electron Radiation Belts to Geomagnetic Storms : Statistics From the Van Allen Probes Era Including Effects From Different Storm Drivers ' , Journal of geophysical research. Space physics , vol. 124 , no. 2 , pp. 1013-1034 . https://doi.org/10.1029/2018JA026066

Title: The Response of Earth's Electron Radiation Belts to Geomagnetic Storms : Statistics From the Van Allen Probes Era Including Effects From Different Storm Drivers
Author: Turner, D. L.; Kilpua, E. K. J.; Hietala, H.; Claudepierre, S. G.; O'Brien, T. P.; Fennell, J. F.; Blake, J. B.; Jaynes, A. N.; Kanekal, S.; Baker, D. N.; Spence, H. E.; Ripoll, J.-F.; Reeves, G. D.
Contributor: University of Helsinki, Particle Physics and Astrophysics
University of Helsinki, Division of Geophysics and Astronomy
Date: 2019-02
Language: eng
Number of pages: 22
Belongs to series: Journal of geophysical research. Space physics
ISSN: 2169-9380
URI: http://hdl.handle.net/10138/300871
Abstract: A statistical study was conducted of Earth's radiation belt electron response to geomagnetic storms using NASA's Van Allen Probes mission. Data for electrons with energies ranging from 30 keV to 6.3 MeV were included and examined as a function of L-shell, energy, and epoch time during 110 storms with SYM-H 1 MeV also revealed a marked increase in likelihood of a depletion at all L-shells through the outer belt (3.5 1-MeV electrons throughout the outer belt, while storms driven by full CMEs and stream interaction regions are most likely to produce an enhancement of MeV electrons at lower (L <similar to 5) and higher (L > similar to 4.5) L-shells, respectively. CME sheaths intriguingly result in a distinct enhancement of similar to 1-MeV electrons around L similar to 5.5, and on average, CME sheaths and stream interaction regions result in double outer belt structures.
Subject: radiation belts
relativistic electrons
geomagnetic storms
inner magnetosphere
energetic particles
wave-particle interactions
RELATIVISTIC ELECTRONS
SOLAR-WIND
INNER MAGNETOSPHERE
GEOSYNCHRONOUS ORBIT
MAGNETIC STORMS
ACCELERATION
DYNAMICS
RING
EVENTS
ENHANCEMENTS
114 Physical sciences
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