Modeling the Excitation of Whistler Mode Chorus and EMIC Waves During the April 21, 2001 Magnetic Storm.

Details Modeling the Excitation of Whistler Mode Chorus and EMIC Waves During the April 21, 2001 Magnetic Storm. Modeling the Excitation of Whistler Mode Chorus and EMIC Waves During the April 21, 2001 Magnetic Storm.

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm14a..08t&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SM14A-08

Physics

2730 Magnetosphere: Inner, 2764 Plasma Sheet, 2772 Plasma Waves And Instabilities (2471), 2778 Ring Current, 2788 Magnetic Storms And Substorms (7954)

Scientific paper

The global dynamic evolution of ring current ions and electrons during the April 21-24, 2001 magnetic storm is modeled with the RAM code using global electric fields, and particle fluxes near geostationary orbit obtained from the RCM code with the tail plasma sheet boundary conditions based on Geotail observations. The coupled codes allow us to investigate the influence of solar wind variability on the inner magnetosphere, and also identify the spatial locations for wave excitation during different phases of the storm. At locations, where wave instability is expected, the particle distributions from the RAM code are used to model the path integrated amplification of chorus and EMIC waves using the HOTRAY code. Our results are the first attempt to model the global distribution of chorus and EMIC waves from a source population originating in the plasma sheet obtained from the RCM driven by interplanetary conditions. Comparison will be made with available satellite data and statistical models of wave intensity during active conditions.

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