Auroral ionospheric conductivities: a comparison between experiment and modeling, and theoretical f10.7-dependent model for EISCAT and ESR |
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| Authors: | J Lilensten P L Blelly W Kofman D Alcaydé |
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| Institution: | (1) CEPHAG-ENSIEG, BP 46, 38402 Saint Martin  Hères Cedex, France;(2) CESR, 9 Avenue Claude Roche, 31029 Toulouse Cedex, France |
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| Abstract: | Several authors have published models of auroral conductances in the past. Some of them are based on theoretical approaches; others are the result of observations. The data bases for the latter models range from 8 h to 3 years of experiments. In this paper, we show the results of our own modeling, based on a coupled kinetic/fluid approach. We compare these results to the statistical model based on 3 years of experiment. We then model the auroral ionospheric conductances above EISCAT and the EISCAT-Svalbard Radar for different solar-activity indices. These modeled conductances are fitted with a simple law depending on the f10.7 index and on the solar zenith angle. |
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