HR: 0800h
AN: SM51A-0333    [Abstracts]
TI: TARANIS: a Tool to investigate Potential Links Between Sprites and Ionospheric and Magnetospheric Plasmas
AU: * Francois, L
EM: lefeuvre@cnrs-orleans.fr
AF: LPCE - CNRS, Univ Orleans, LPCE/CNRS 3 A Av de la Recherche Scientifique, Orleans, 45071 cdx France
AU: Elisabeth, B
EM: elisabeth.blanc@cea.fr
AF: Commissariat Energie Atomique, CEA/LDG, Bruyeres-le-Chatel, BP12 91680 France
AU: Team, T
EM: lefeuvre@cnrs-orleans.fr
AF: LPCE - CNRS, Univ Orleans, LPCE/CNRS 3 A Av de la Recherche Scientifique, Orleans, 45071 cdx France
AB: TARANIS (Tool for the Analysis of RAdiations from lightNIngs and Sprites) is a CNES microsatellite project which will be in phase A in 2005. The main scientific objective is to compare observations of sprites and other optical emissions (blue jets, halos, elves,etc.) with observations of terrestrial gamma and X ray flashes, electromagnetic and electrostatic emissions, and energetic electrons, in order to investigate physical mechanisms allowing impulsive transfers of energy between the neutral atmosphere and the ionospheric and magnetospheric plasmas. The main questions to be addressed for a satellite mission are presented. They include : the triggering factor of the optical emissions, the quasi electrostatic field above thunderstorms, the modification of the electrodynamics of the ionosphere, the detection and the modeling of energetic runaways electron beams, the associated electromagnetic and electrostatic emissions, the presence of the generated electron beams within the magnetosphere and more specifically within the radiation belts. The adequation of the scientific payload to the scientific objectives is discussed.
DE: 2411 Electric fields (2712)
DE: 2427 Ionosphere/atmosphere interactions (0335)
DE: 2736 Magnetosphere/ionosphere interactions
DE: 2794 Instruments and techniques
DE: 0360 Transmission and scattering of radiation
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting