HR: 08:00h
AN: SM31E-01 INVITED    [Abstracts]
TI: Geosynchronous Proton Fluxes as a Pointer of Global Proton Distribution in the Inner Magnetosphere
AU: * Milillo, A
EM: anna.milillo@ifsi-roma.inaf.it
AF: INAF/IFSI, via del Fosso del Cavaliere 100, Rome, 00185, Italy
AU: Orsini, S
EM: stefano.orsini@ifsi-roma.inaf.it
AF: INAF/IFSI, via del Fosso del Cavaliere 100, Rome, 00185, Italy
AU: Marcucci, M F
EM: federica.marcucci@ifsi-roma.inaf.it
AF: INAF/IFSI, via del Fosso del Cavaliere 100, Rome, 00185, Italy
AB: The geosynchronous orbit is the edge region where plasma sheet and ring current populations join to each other, where different current systems merge and where protons become to be trapped into closed trajectories thus having time to diffuse inward. Hence, the proton fluxes observed at this orbit have the potentiality to provide information about the neighboring regions. In fact, by using the proton fluxes at the geosynchronous orbit, it has been possible to reconstruct through an empirical approach the global evolving proton distributions in the inner magnetosphere. In this presentation some applications of the LANL data to the Milillo et al. (2001) model are reviewed. In particular, we highlight that by this approach it is possible to derive the evolving characteristics of the convected population and the relative contribution of the tail and the ring currents during geomagnetic storms and to study the effect of dual lobe reconnection in the inner magnetosphere.
DE: 2723 Magnetic reconnection (7526, 7835)
DE: 2730 Magnetosphere: inner
DE: 2740 Magnetospheric configuration and dynamics
DE: 2764 Plasma sheet
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting