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.
All Science Journal Classification (ASJC) codes
- Earth and Planetary Sciences(all)