Experiment Observations and New Theoretical Approaches to Nonlinear Wave Growth in Magnetospheric Chorus and Triggered Emissions

Details Experiment Observations and New Theoretical Approaches to Nonlinear Wave Growth in Magnetospheric Chorus and Triggered Emissions Experiment Observations and New Theoretical Approaches to Nonlinear Wave Growth in Magnetospheric Chorus and Triggered Emissions

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm22a..01g&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM22A-01

Physics

Plasma Physics

[7839] Space Plasma Physics / Nonlinear Phenomena, [7867] Space Plasma Physics / Wave/Particle Interactions

Scientific paper

The nonlinear whistler mode instability associated with magnetospheric chorus and VLF triggered emissions is known to be a key driver in magnetospheric dynamics. Nevertheless, despite many years of dedicated experiments, observations, theories, and simulations, the process continues to be poorly understood. We present a review of key observations and following up on recent formulations of other authors, we give a new analytical exploration of the stability of the phenomenon. This exploration derives an additional requirement on the anisotropy of the energetic electron distribution relative to the linear treatment of the instability, and shows that the nonlinear instability is strongest when electrons become initially trapped in the wave potential. These results imply that the initiation of the nonlinear instability at the equator requires a positive frequency sweep rate, while the initiation of the instability by a constant frequency triggering wave must occur at a location upstream of the geomagnetic equator.

Affiliated with

Also associated with

No associations

Rating

Experiment Observations and New Theoretical Approaches to Nonlinear Wave Growth in Magnetospheric Chorus and Triggered Emissions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Experiment Observations and New Theoretical Approaches to Nonlinear Wave Growth in Magnetospheric Chorus and Triggered Emissions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experiment Observations and New Theoretical Approaches to Nonlinear Wave Growth in Magnetospheric Chorus and Triggered Emissions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1890167