Quasi-Linear Evolution of Trapped Electron Fluxes Under the Influence of Realistic Whistler-Mode Waves

Didier Mourenas, CNRS, Paris Cedex 16, France; Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, CNRS, Orléans Cedex 2, France, Anton Artemyev, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, Oleksiy V Agapitov, University of california at Berkeley, Space Science laboratory, Berkeley, CA, United States and Federico Fraternale, Space Science Laboratory, UCB, Berkeley, United States
Abstract:
The evolution of fluxes of energetic trapped electrons as a function of geomagnetic activity is investigated using brand new statistical models of chorus waves derived from Cluster observations in the radiation belts. The new wave models provide the distributions of wave power and wave-normal angle with latitude as a function of either Dst or Kp indices. Lifetimes and energization of energetic electrons are examined, as well as the relevant uncertainties related to some of the wave models implicit assumptions.From the presented results, different implications concerning the characterization of relativistic flux enhancements and losses are provided.
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