Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm54b..06a&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SM54B-06
Physics
[2407] Ionosphere / Auroral Ionosphere, [2455] Ionosphere / Particle Precipitation, [2704] Magnetospheric Physics / Auroral Phenomena, [2716] Magnetospheric Physics / Energetic Particles: Precipitating
Scientific paper
The global distributions of the characteristics of energetic particles precipitating within the auroral oval are extremely important inputs to any description or model of the geospace environment and the Sun-Earth connection. These distributions are usually given in terms of average energy and integral energy flux and are used in models to derive factors such as the ionospheric density profile and conductivity. However, the derived conductivity is not only dependent on the characteristic energy and integral energy flux, but on the functional shape of the particle distributions. Also, the particle distributions inferred from auroral images, from which the global distributions are often derived, are themselves dependent on the functional shape of the particle distributions. We will present global maps of the spectral properties of the auroral particles, identifying the MLT and MLAT regions in which various spectral distributions are observed and their dependence on Kp.
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