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Ann. Geophys., 14, 1297-1304, 1996
www.ann-geophys.net/14/1297/1996/
© European Geosciences Union 1996

Auroral ionospheric conductivities: a comparison between experiment and modeling, and theoretical f_10.7-dependent model for EISCAT and ESR

J. Lilensten¹, P. L. Blelly², W. Kofman¹, and D. Alcaydé^2
1CEPHAG-ENSIEG, BP 46, 38402 Saint Martin d'Hères Cedex, France
²CESR, 9 Avenue Claude Roche, 31029 Toulouse Cedex, France

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 ki- netic/fluid approach. We compare these results to the sta- tistical 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 f_10.7 index and on the solar zenith angle.

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Citation: Lilensten, J., Blelly, P. L., Kofman, W., and Alcaydé, D.: Auroral ionospheric conductivities: a comparison between experiment and modeling, and theoretical f_10.7-dependent model for EISCAT and ESR, Ann. Geophys., 14, 1297-1304, 1996.   Bibtex   EndNote   Reference Manager