SIMULTANEOUS OBSERVATIONS OF LOWER BAND CHORUS EMISSIONS AT THE EQUATOR AND MICROBURST PRECIPITATING ELECTRONS IN THE IONOSPHERE

TitleSIMULTANEOUS OBSERVATIONS OF LOWER BAND CHORUS EMISSIONS AT THE EQUATOR AND MICROBURST PRECIPITATING ELECTRONS IN THE IONOSPHERE
Publication TypeJournal Article
Year of Publication2017
AuthorsMozer, FS, Agapitov, OV, Blake, JB, Vasko, IY
JournalGeophysical Research Letters
Date Published12/2017
Keywordschorus makes microbursts; Van Allen Probes
AbstractOn December 11, 2016 at 00:12:30 UT, Van Allen Probe-B, at the equator and near midnight, and AC6-B, in the ionosphere, were on magnetic field lines whose 100 km altitude foot points were separated by 600 km. Van Allen Probe-B observed a 30 second burst of lower band chorus waves (with maximum amplitudes >1 nT) at the same time that AC6-B observed intense microburst electrons in the loss cone. One-second averaged variations of the chorus intensity and the microburst electron flux were well-correlated. The low altitude electron flux expected from quasi-linear diffusion of the equatorial electrons by the equatorial chorus is in excellent agreement with the observed, one second averaged, low altitude electron flux. However the large amplitude, <0.5 second duration, low altitude electron pulses require non-linear processes for their explanation.
URLhttp://onlinelibrary.wiley.com/doi/10.1002/2017GL076120/full
DOI10.1002/2017GL076120
Short TitleGeophys. Res. Lett.


Page Last Modified: January 4, 2018