Simultaneous Observation Of A Strong Electron Microburst At The Equator And In the Ionosphere

Blake, J

Simultaneous Observation Of A Strong Electron Microburst At The Equator And In the Ionosphere

Tuesday, 6 March 2018: 14:40

Longshot and Bogey (Hotel Quinta da Marinha)

Forrest Mozer, University of California Berkeley, Berkeley, CA, United States, Oleksiy V. Agapitov, University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, J Bernard Blake, Aerospace Corporation Santa Monica, Santa Monica, CA, United States and Ivan Vasko, Space Science Lab, UC berkeley, Berkeley, CA, United States

PDF

Abstract:

On December 11, 2016 at 00:12:30 UT, Van Allen Probe-B, near the equator, 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 burst of >1 nT lower band, linear chorus waves at the same time that AC6-B observed intense microburst electrons in the loss cone. The chorus wave intensity and microburst electron flux were well-correlated. Estimates of the low altitude electron flux expected from quasi-linear diffusion caused by the equatorial wave are given and the relative importance of linear and non-linear processes are discussed. The conclusion of these analyses is that the intense microburst was caused by equatorial electron scattering by the chorus wave.