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Communication Dans Un Congrès Année : 2009

TARANIS - impact of recent observations on the scientific payload

Résumé

TARANIS (Tool for the Analysis of Radiations from lightNings and Sprites) is a CNES satellite project dedicated to the study of impulsive transfers of energy between the Earth atmosphere and the space environment, and more precisely to the physics of the Transient Luminous Events (TLEs) and of the Terrestrial Gamma ray Flashes (TGFs). Recent observations have leaded the TARANIS scientific team to reinforce several scientific objectives, to redesign the gamma ray instrument, and to check the adequacy of the other instruments. As a result it is shown that: (i) satellite optical observations at the nadir may have, as a supplementary advantage, to spatially resolve close TLE structures observed at ground, (ii) with its new design, the gamma ray instrument reaches the sensitivity to detect almost every TGFs, with their temporal evolutions, and provides more accurate information on the spatial localization (not only altitude, but also azimuth and elevation) of the production sources, (iii) the electron spectrometers allows to characterize the energy distribution of runaway electrons and the angular distribution of lightning induced electron precipitations, (iv) radio observations are well suited to a full characterization of 0+ whistlers below 1 MHz and to an investigation of the nature of lightning-related pulses in the HF band. Finally, the present status of the mission is presented.
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Dates et versions

hal-04113503 , version 1 (01-06-2023)

Identifiants

Citer

J. Pincon, E. Blanc, P. Blelly, F. Lefeuvre, J. Rauch, et al.. TARANIS - impact of recent observations on the scientific payload. American Geophysical UnionFall Meeting 2009, Dec 2009, San Francisco California, United States. pp.abstract id. AE23A-02. ⟨hal-04113503⟩
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