Simulation of the outer radiation belt electrons near geosynchronous orbit including both radial diffusion and resonant interaction with Whistler-mode chorus waves
Varotsou, Athena; Boscher, Daniel; Bourdarie, Sebastien; Horne, Richard B. ORCID: https://orcid.org/0000-0002-0412-6407; Glauert, Sarah A. ORCID: https://orcid.org/0000-0003-0149-8608; Meredith, Nigel P. ORCID: https://orcid.org/0000-0001-5032-3463. 2005 Simulation of the outer radiation belt electrons near geosynchronous orbit including both radial diffusion and resonant interaction with Whistler-mode chorus waves. Geophysical Research Letters, 32 (19), L19106. 4, pp. https://doi.org/10.1029/2005GL023282
Full text not available from this repository. (Request a copy)Abstract/Summary
We present the first simulation results for electrons in the outer radiation belt near geosynchronous orbit, where radial diffusion and resonant interactions with whistler-mode chorus outside the plasmasphere are taken into account. Bounce averaged pitch-angle and energy diffusion rates are introduced in the Salammbô code for L ≤ 6.5, for electron energies between 10 keV and 3 MeV and fpe/fce values between 1.5 and 10. Results show that an initial seed population with a power law (Kappa) distribution and a characteristic plasmasheet energy of ∼5 keV can be accelerated up to a few MeV, for 4.5 < L < 6.6 and give a steady state profile similar to the one obtained from average satellite measurements. For a Kp = 4 magnetic storm simulation MeV electron fluxes increase by more than a factor of 10 on a timescale of 1 day. We conclude that whistler-mode chorus waves can be a major electron acceleration process at geostationary orbit.
Item Type: | Publication - Article |
---|---|
Digital Object Identifier (DOI): | https://doi.org/10.1029/2005GL023282 |
Programmes: | BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Sun Earth Connections |
ISSN: | 0094-8276 |
Additional Keywords: | Magnetosphere |
NORA Subject Terms: | Atmospheric Sciences Space Sciences |
Date made live: | 23 Jan 2008 14:03 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/2031 |
Actions (login required)
View Item |
Document Downloads
Downloads for past 30 days
Downloads per month over past year