Physics
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3618108m&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 18, CiteID L18108
Physics
5
Magnetospheric Physics: Plasma Waves And Instabilities (2471), Magnetospheric Physics: Ring Current, Ionosphere: Wave/Particle Interactions (7867), Magnetospheric Physics: Solar Wind/Magnetosphere Interactions, Magnetospheric Physics: Magnetospheric Configuration And Dynamics
Scientific paper
On 29 June 2007, EMIC waves were observed on the ground by the Canadian Array for Realtime Investigations of Magnetic Activity (CARISMA) network of magnetometers between L = 5 and L = 7 in response to a significant magnetospheric compression. We describe a new MHD/particle method to simulate the phase space density dynamics of warm plasma particles in a realistic magnetosphere from the global Lyon-Fedder-Mobarry (LFM) MHD code and 3D test-particle trajectories. We use these results to compute temperature anisotropies and plasma densities. We then compute convective wave growth rates for this event over a range of frequencies, and thus create a spatio-temporal picture of where waves can be expected to be seen in magnetic local time and L-shell. Results are shown to be consistent with ground-based observations of this event.
Baker Daniel N.
Elkington Scot R.
McCollough J. P.
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