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A New Approach to Constructing Models of Electron Diffusion by EMIC Waves in the Radiation Belts

Electromagnetic ion cyclotron (EMIC) waves play an important role in relativistic electron losses in the radiation belts through diffusion via resonant wave-particle interactions. We present a new approach for calculating bounce and drift-averaged EMIC electron diffusion coefficients. We calculate bounce-averaged diffusion coefficients, using quasi-linear theory, for each individual Combined Release and Radiation Effects Satellite (CRRES) EMIC wave observation using fitted wave properties, the plasma density and the backgrou ...

Ross, J.; Glauert, S.; Horne, R.; Watt, C.; Meredith, N.; Woodfield, E.;

YEAR: 2020     DOI:

Radiation belts; EMIC waves; electron diffusion; Van Allen Probes


Survey analysis of chorus intensity at Saturn

In order to conduct theoretical studies or modeling of pitch angle scattering of electrons by whistler mode chorus emission at Saturn, a knowledge of chorus occurrence and magnetic intensity levels, PB, as well as the distribution of PB relative to frequency and spatial parameters is essential. In this paper an extensive survey of whistler mode magnetic intensity levels at Saturn is carried out, and Gaussian fits of PB are performed. We fit the spectrum of wave magnetic intensity between the lower hybrid frequency and fceq/2 ...

Menietti, J.; Averkamp, T.; Groene, J.; Horne, R.; . Y. Shprits, Y; Woodfield, E.; Hospodarsky, G.; Gurnett, D.;

YEAR: 2014     DOI: 10.1002/jgra.v119.1010.1002/2014JA020523

Space physics