Reference : FUV Global View of the Evolution of Electrons and Protons Substorms
Scientific congresses and symposiums : Unpublished conference
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/8464
FUV Global View of the Evolution of Electrons and Protons Substorms
English
Meurant, M. mailto [Laboratoire de Physique Atmosphérique et Planétaire, Université de Liège, Allée du 6 août, 17, Liège, B-4000 Belgium;]
Hubert, Benoît mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Gérard, Jean-Claude mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Mende, S. B. mailto [Space Science Laboratory University of California, Centennial Drive at Grizzly Peak Blvd., Berkeley, CA CA 94720 United States;]
1-May-2002
No
No
International
AGU Spring meeting
American Geophysical Union
USA
[en] 2704 Auroral phenomena (2407) ; 2788 Storms and substorms
[en] The FUV instruments on board the IMAGE satellite provide global images of the N2-LBH (WIC), OI-1356 Ì· (SI13) and Doppler shifted Lyman-alpha (SI12) emissions of the north polar aurora. The 7 Re apogee of the IMAGE orbit allows FUV to simultaneously image the entire auroral zone during a large fraction of the orbit. We present a result of a study of the global morphology evolution during substorm development and recovery. In order to avoid any dayglow contamination, this study is restricted to winter observation. In active regions, electron fluxes and electrons mean energies are deduced assuming a Maxwellian distribution assumption. The mean energy is derived from the WIC/SI13 ratio. Proton fluxes are also determined assuming a 8 keV proton mean energy with a Kappa distribution. The temporal dependence of the electron and proton injections is studied along with their magnetic local time and magnetic latitude variations during several substorms. In particular, the temporal evolution of the magnetic latitude of the bulk proton and electron injections is presented. Our results are found to be consistent with previous studies resting on ground based observations.
Researchers ; Professionals
http://hdl.handle.net/2268/8464
http://adsabs.harvard.edu/abs/2002AGUSMSM41C..03M

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