AURORAL IONOSPHERIC CONDUCTIVITIES - A COMPARISON BETWEEN EXPERIMENT AND MODELING, AND THEORETICAL F(10.7)-DEPENDENT MODEL FOR EISCAT AND ESR

Several authors have published models of auroral conductances in the p ast. Some of them are based on theoretical approaches; others are the result of observations. The data bases for the latter models range fro m 8 h to 3 years of experiments. Tn this paper, we show the results of our own modeling, based on a coupled kinetic/fluid approach. We compa re these results to the statistical model based on 3 years of experime nt. We then model the auroral ionospheric conductances above EISCAT an d the EISCAT-Svalbard Radar for different solar-activity indices. Thes e modeled conductances are fitted with a simple law depending on the f (10.7), index and on the solar zenith angle.