Mathematics – Logic
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh23c..06l&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SH23C-06
Mathematics
Logic
2720 Energetic Particles: Trapped, 2774 Radiation Belts, 7807 Charged Particle Motion And Acceleration, 7845 Particle Acceleration, 7867 Wave/Particle Interactions (2483, 6984)
Scientific paper
The radiation belts are one of the biggest causes of space weather impacts on life and society here on Earth. While these relativistic electrons and energetic ions do not carry the bulk of the plasma mass or energy content, they are the particles that adversely affect space-based technological assets and that pose a real risk of harm to astronauts. Understanding the physical processes that enhance the radiation belt fluxes is, therefore, a timely and pressing issue that needs to be resolved. There is still a debate about the dominant source mechanism for the radiation belt electrons. It is clear that radiation belt enhancements can be due to either an internal inner magnetospheric source, such as energization by nightside chorus waves, or an external outer magnetospheric source, such as radial diffusion of high-energy plasma sheet electrons into near-Earth space, or both simultaneously. The coexistence of strong loss processes at the same time as the strong source processes further obscures the truth. In 2004, the LWS TR&T program solicited proposals to examine RB enhancements. The selected team consists of modelers and data analysts tackling this issue from a variety of perspectives with an array of research tools. This presentation highlights the team's progress so far and its plans for the near future. In particular, we have selected the second half of 2002 as an interval of general interest for the group, and the two storm and subsequent enhancement events of August 2 and October 24, 2002, as specific intervals for group-wide examination.
Chan Anthony A.
Elkington S.
Fok M. H.
Henderson Gideon M.
Liemohn Michael W.
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