The March 2015 Superstorm Revisited: Phase Space Density Profiles and Fast ULF Wave Diffusive Transport

The March 2015 Superstorm Revisited: Phase Space Density Profiles and Fast ULF Wave Diffusive Transport

We present the temporal evolution of electron Phase Space Density (PSD) in the outer radiation belt during the intense March 2015 geomagnetic storm. Comparing observed PSD profiles as a function of L* at fixed first, M, and second, K, adiabatic invariants with those produced by simulations is critic...

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Veröffentlicht in:Journal of geophysical research. Space physics 2019-02, Vol.124 (2), p.1143-1156
Hauptverfasser: Ozeke, L. G., Mann, I. R., Claudepierre, S. G., Henderson, M., Morley, S. K., Murphy, K. R., Olifer, L., Spence, H. E., Baker, D. N.
Format: Artikel
Sprache:eng
Schlagworte:
Diffusion
Diffusion rate
Electrons
Evolution
Extremely low frequencies
Geomagnetic storms
Geomagnetism
local acceleration
Magnetic storms
March 2015 storm
Outer radiation belt
phase space density
radial diffusion
Radiation
radiation belt
Recovery
Space density
Storms
ULF waves
Wave power
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Zusammenfassung:We present the temporal evolution of electron Phase Space Density (PSD) in the outer radiation belt during the intense March 2015 geomagnetic storm. Comparing observed PSD profiles as a function of L* at fixed first, M, and second, K, adiabatic invariants with those produced by simulations is critical for determining the physical processes responsible for the outer radiation belt dynamics. Here we show that the bulk of the accelerated and enhanced outer radiation belt population consists of electrons with K 
ISSN:2169-9380
2169-9402
DOI:10.1029/2018JA026326