Quantifying the Physical Processes Affecting Highly Relatives Electron Dynamics in the Earths Radiation Belts and their Relation to Solar Wind Conditions
Abstract
Over the course of this project (08/15/201508/14/2019) we have published 42 papers in major scientific journals relevant to this funding to UCLA and Boston University. The most significant accomplishments since last report (August 2018) are summarized below. 1. We also published four review papers on 'Understanding Radiation Belt Electron Dynamics Due to Wave-Particle Interactions', which includes an overview of the various physical processes driving radiation belt electron dynamics. One of the papers is an invited review paper as one of them JGR Centennial papers (10.1029/2018JA025940). 2. We analyzed energetic electron precipitation driven by three types of whistler mode waves: plume whistler mode waves, plasmaspheric hiss, and exohiss observed outside the plasmapause. By quantitatively analyzing three conjunction events between Van Allen Probes and POES/MetOp satellites, together with quasi-linear calculation, we found that plume whistlermode waves are most effective in pitch angle scattering loss, particularly for the electrons from 10s to 100s keV. Our new finding provides the first direct evidence of effective pitch angle scattering driven by plume whistler mode waves and is critical for understanding energetic electron loss process in the inner magnetosphere. This result has been published in GRL in 2019 (10.1029/2019GL082095).
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 12, 2019
- Accession Number
- AD1096630
Entities
People
- Jacob Bortnik
Organizations
- University of California