Energization of ions by bimodal intermittent fluctuations

Sunny W.Y. Tam, Tom Chang

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)


Sporadic and localized interactions of coherent structures in magnetized plasmas can be the source for the observed broadband, low frequency electric field fluctuations composed of nonpropagating spatiotemporal oscillations, and propagating modes. This chapter demonstrates that the particle interactions with this type of bimodal intermittent turbulence can lead to the efficient energization of the auroral ions. For intermittent turbulence, the probability distributions of the fluctuations are non-Gaussian and the effects of the intermittency can manifest in the higher order correlations beyond the second order diffusion coefficient. Global auroral conic simulations to study the effect of intermittency on particle energization processes have been performed.

Original languageEnglish
Title of host publicationMultiscale Coupling of Sun-Earth Processes
Number of pages7
ISBN (Print)9780444518811
Publication statusPublished - 2005

All Science Journal Classification (ASJC) codes

  • General Earth and Planetary Sciences


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