Whistler chorus intensifications associated with convection indicator by SuperDARN and particle injections by LANL satellites

Details Whistler chorus intensifications associated with convection indicator by SuperDARN and particle injections by LANL satellites Whistler chorus intensifications associated with convection indicator by SuperDARN and particle injections by LANL satellites

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm11b0316h&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SM11B-0316

Physics

2716 Energetic Particles: Precipitating, 2720 Energetic Particles: Trapped, 2730 Magnetosphere: Inner, 2760 Plasma Convection (2463), 2788 Magnetic Storms And Substorms (7954)

Scientific paper

We perform a survey of the whistler chorus wave by ground station data and substorm injections by LANL satellites particle data during the second half of 2003 to investigate the viability of a local stochastic electron acceleration mechanism to relativistic energies driven by whistler mode chorus. It has been suggested that the enhancements are caused by local electron energization resulting from resonant interactions with enhanced whistler-mode chorus emissions that have been observed on the dawn side of the magnetosphere. We have used observations during the second half of 2003, when there were persistent high-speed solar wind streams. We use ground-based chorus observations from the VELOX instrument at Halley station as an indicator of magnetospheric chorus intensities. These data give evidence that it is the periods of enhanced convection that precede substorm expansions, and not the expansions themselves, that lead to the enhanced dawn-side chorus wave intensity that has been postulated to cause the relativistic electrons energization. We found some interesting cases to show the relation between convention and whistler chorus using SuperDARN convection data.

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