parametric validations of analytical lifetime estimates for radiation belt electron diffusion by whistler waves

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ID: 191184
2013
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Abstract
The lifetimes of electrons trapped in Earth's radiation belts can be calculated from quasi-linear pitch-angle diffusion by whistler-mode waves, provided that their frequency spectrum is broad enough and/or their average amplitude is not too large. Extensive comparisons between improved analytical lifetime estimates and full numerical calculations have been performed in a broad parameter range representative of a large part of the magnetosphere from L ~ 2 to 6. The effects of observed very oblique whistler waves are taken into account in both numerical and analytical calculations. Analytical lifetimes (and pitch-angle diffusion coefficients) are found to be in good agreement with full numerical calculations based on CRRES and Cluster hiss and lightning-generated wave measurements inside the plasmasphere and Cluster lower-band chorus waves measurements in the outer belt for electron energies ranging from 100 keV to 5 MeV. Comparisons with lifetimes recently obtained from electron flux measurements on SAMPEX, SCATHA, SAC-C and DEMETER also show reasonable agreement.
Reference Key
artemyev2013annalesparametric Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;A. V. Artemyev;A. V. Artemyev;D. Mourenas;O. V. Agapitov;O. V. Agapitov;O. V. Agapitov;V. V. Krasnoselskikh
Journal journal of food measurement and characterization
Year 2013
DOI
10.5194/angeo-31-599-2013
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