Bibliography



Van Allen Probes Bibliography is from August 2012 through September 2021

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Solar Energetic Proton Access to the Inner Magnetosphere during the 7-8 September 2017 event


AuthorLi, Zhao; Engel, Miles; Hudson, Mary; Kress, Brian; Patel, Maulik; Qin, Murong; Selesnick, Richard;
KeywordsVan Allen Probes
AbstractAbstract The access of solar energetic protons into the inner magnetosphere on 7-8 September 2017 is investigated by following reversed proton trajectories to compute the proton cutoff energy using the Dartmouth geomagnetic cutoff code [Kress et al., 2010]. The cutoff energies for protons coming from the west and east direction, the minimum and maximum cutoff energy respectively, are calculated every five minutes along the orbit of Van Allen Probes using TS07 and the Lyon-Fedder-Mobarry (LFM) MHD magnetic field model. The result shows that the cutoff energy increases significantly as the radial distance decreases, and that the cutoff energy decreases with the building up of the ring current during magnetic storms. Solar wind dynamic pressure also affects cutoff suppression [Kress et al., 2004]. The LFM-RCM model shows stronger suppression of cutoff energy than TS07 during strong solar wind driving conditions. The simulation result is compared with proton flux measurements, showing consistent variation of the cutoff location during the 7-8 September 2017 geomagnetic storm. This article is protected by copyright. All rights reserved.
Year of Publication2021
JournalJournal of Geophysical Research: Space Physics
Volumen/a
Number of Pagese2021JA029107
Section
Date Published06/2021
ISBN
URLhttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021JA029107
DOIhttps://doi.org/10.1029/2021JA029107