HR: 15:25h
AN: AE13A-08    [Abstracts]
TI: The Taranis project: Scientific objectives and instrumentation
AU: * Lefeuvre, F
EM: lefeuvre@cnrs-orleans.fr
AF: Laboratoire de Physique et Chimie de l'Environnement, CNRS, Univ. Orleans, 3 A Av de la Recherche Scientifique, ORLEANS, 45071 cd 2 France
AU: Blanc, E
EM: elisabeth.blanc@cea.fr
AF: Commissariat … l'Energie Atomique, Laboratoire de Detection et de Geophysique, BP 12, Bruyeres Le Chatel, 91680 France
AU: Roussel-Dupre, R
EM: rroussel-dupre@lanl.gov
AF: Los Alamos National Laboratorie, EES-2, MS F659, Los Alamos, NM 87545 United States
AU: Sauvaud, J
EM: jean-andre.sauvaud@cesr.fr
AF: Centre d'etude spatiale des rayonnements, 9 av du Colonel Roche BP4346, Toulouse, 31028 cd 4 France
AB: Taranis (Tool for the Analysis of RAdiations from lightNIngs and Sprites) is a CNES microsatellite project in phase A. The main scientific objective is to compare observations of TLEs (Transient Luminous Events) with observations of terrestrial TGFs (Transient Gamma 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 project plans to determine the time and latitude distribution and triggering factors of all possible emissions, measured simultaneously on the same satellite, to evaluate the related changes in the ionosphere and upper atmosphere. It plans to characterize the wave and particle emissions, as the relativistic electrons, predicted by the relativistic run away electron model. It also plans to determine the interaction of these emissions with the ionosphere and magnetosphere and to quantify the effects on radiation belts in relation with recent magnetospheric models. The scientific payload includes two imagers and three photometers with observation bandwidths in UV and IR, selected to differentiate lightning and TLEs by their different atmospheric absorption. It also includes an X and gamma ray detectors, electric and magnetic sensors and two high energy electron detectors. Simulations using theoretical work and experimental results are used to determine the specifications of the instrumentation.
DE: 2451 Particle acceleration
DE: 2455 Particle precipitation
DE: 2483 Wave/particle interactions (7867)
DE: 2487 Wave propagation (0689, 3285, 4275, 4455, 6934)
DE: 2730 Magnetosphere: inner
SC: Atmospheric and Space Electricity [AE]
MN: Fall Meeting 2005