Bibliography



Van Allen Probes Bibliography is from August 2012 through September 2021

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The Radial Propagation Characteristics of the Injection Front: A Statistical Study Based on BD-IES and Van Allen Probes Observations


AuthorLiu, Z; Zong, Q.-G.; Hao, Y.; Liu, Y.; Chen, X.;
Keywordsearthward propagation; radial propagation speed; substorm injection; tailward propagation; upper-cutoff magnetic moment; Van Allen Probes
AbstractElectron flux measurements outside geosynchronous orbit (GSO) obtained by the BeiDa Imaging Electron Spectrometer instrument onboard a 55 degrees-inclined GSO satellite, and inside GSO obtained by the Van Allen Probes are analyzed to investigate the temporal and spatial evolutions of the substorm injection region. In one year data started from October 2015, 63 injection events are identified. Firstly, our study shows that the injection signatures can be detected in a large radial extent in one single event, for example, from L \~ 4.1 to L \~ 9.3. Secondly, injection onset times are derived from the energy dispersion of particle injection signatures of each satellite. The difference of the onset times among satellites reveals that the injection boundary, termed as \textquotedblleftinjection front\textquotedblright in this paper, can propagate both earthward and tailward with a speed varying from a few km/s to \~100 km/s. Thirdly, evolutions of the upper-cutoff magnetic moments (μuc) of injected electrons are analyzed, upon which the injection events are classified into two categories. In one category, the μuc observed by two radially separated satellites are equal taking into account the error caused by the finite width of energy channels, whereas in the other category, μuc at lower L shells are smaller than that at higher L shells.
Year of Publication2018
JournalJournal of Geophysical Research: Space Physics
Volume
Number of Pages
Section
Date Published02/2018
ISBN
URLhttp://onlinelibrary.wiley.com/doi/10.1002/2018JA025185/full
DOI10.1002/2018JA025185