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Radial Transport of Electrons in the Radiation Belts Under the Effect of Ultra Low Frequency Waves Open Access


Other title
magnetohydrodynamic waves
ultra low frequency waves
radial transport
magnetospheric physics
radiation belts
Type of item
Degree grantor
University of Alberta
Author or creator
O'Donnell, Scott W.
Supervisor and department
Rankin, Robert (Physics)
Examining committee member and department
Mann, Ian (Physics)
Tsui, Ying (Electrical and Computer Engineering)
Rankin, Robert (Physics)
Marchand, Richard (Physics)
Department of Physics

Date accepted
Graduation date
Master of Science
Degree level
For over 50 years, the study of Earth's radiation belts has been a major focus of the space physics community. Of great interest is the variability of energy in the belts, which is poorly understood and subject to intense investigation. We seek to explain how impulses from the Sun interact with Earth's geomagnetic field to generate ultra low frequency (ULF) waves that energize electrons in the outer belt. Using the ideal magnetohydrodynamic assumption ULF wave model of [Degeling et al., 2011], we will examine how shear Alfvén waves are excited by ULF compressional waves generated from a current driver on the magnetopause boundary. By taking the model outputs, we trace electron motion in the equatorial magnetosphere and examine how they are transported radially in the radiation belts. This procedure allows us to calculate the first and second L moments to assess transport for electrons in the fields of ULF waves.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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