Title :
Solar cycle variations in the inner zone proton belt configuration
Author :
Vampola, A.L. ; Lauriente, M.
Author_Institution :
Univ. Res. Found., Torrance, CA, USA
Abstract :
Using a 2-D (longitude and latitude) cross-correlation between sets of SEUs from the TOMS satellite in the inner zone in 1992 and 1995, it is shown that the centroid of the energetic proton ensemble causing these SEUs moved to lower L (1.26 vs. 1.29 for the protons) during this period. This change in the energetic proton distribution at low altitude is due to the change in atmospheric scale height during the declining phase of the solar cycle. The AP8 model does not predict this change in the location in L of the peak in the inner zone protons
Keywords :
atmospheric temperature; cosmic ray interactions; galactic cosmic rays; geophysical aspects of cosmic rays; radiation belts; solar-terrestrial relationships; sunlight; 2-D cross-correlation; AD 1992 to 1995; AP8 model; SEU; Sun; TOMS satellite; atmospheric scale height; declining phase; energetic proton distribution; energetic proton ensemble; inner zone proton belt configuration; magnetosphere; solar cycle variations; Atmosphere; Atmospheric measurements; Belts; Energy measurement; Geomagnetism; Magnetic field measurement; Magnetic fields; Protons; Satellites; Single event transient;
Conference_Titel :
High Energy Radiation Background in Space, 1997 Conference on the
Conference_Location :
Snowmass, CO
Print_ISBN :
0-7803-4335-2
DOI :
10.1109/CHERBS.1997.660258
