HR: 0830h
AN: SM11C-1168 [PDF]
TI: The Relationship Between Proton Aurora and Trapped Ion Flux as Seen by IMAGE
AU: * Perez, J D
EM: perez@physics.auburn.edu
AF: Physics Department, 206 Allison Lab, Auburn University, AL 36849 United States
AU: Zhang, X
EM: zhangx@cspar.uah.edu
AF: Physics Department, Alabama A&M, Normal, AL 35762 United States
AU: C:son Brandt, P
EM: brandpc1@jhuapl.edu
AF: Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20733 United States
AU: Mitchell, D G
EM: Donald.G.Mitchell@jhuapl.edu
AF: Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20733 United States
AU: Jahn, J
EM: jjahn@swri.edu
AF: Space Science Department, Southwest Research Institute
6220 Culebra Road, San Antonio, TX 78238-5166 United States
AU: Pollock, C J
EM: Cpollock@swri.edu
AF: Space Science Department, Southwest Research Institute
6220 Culebra Road, San Antonio, TX 78238-5166 United States
AU: Mende, S B
EM: mende@ssl.berkeley.edu
AF: Space Science Laboratory, University of California, Berkeley
Centennial Dr. at Grizzly Peak Blvd., Berkeley, CA 94720-7450 United States
AB:
The FUV/SI12 instrument on board the IMAGE satellite provides global observations of proton produced aurora. The MENA and
HENA instruments on IMAGE provide global energetic neutral atom images that can be inverted to obtain equatorial flux
distributions of trapped ring current protons. Mapping the equatorial distributions of trapped protons along magnetic field
lines to the polar cap where the proton auroras are observed allows direct comparison of the location of the two populations.
Such comparisons for 10:00-13:45 UT on August 12, 2000, 00:00-5:45 UT on June 2, 2001, and 13:00-16:45 on June 18, 2001
show a strong correlation between the location of the 8.5 keV trapped proton flux observed by MENA and the precipitating
protons observed by FUV/SI12 but an anti-correlation between the 33 keV trapped protons observed by HENA and the FUV/SI12
observations. Possible explanations of these observations will also be presented.
DE: 2407 Auroral ionosphere (2704)
DE: 2716 Energetic particles, precipitating
DE: 2720 Energetic particles, trapped
DE: 2778 Ring current
SC: SPA - Magnetospheric Physics [SM]
MN: 2003 Fall Meeting