Auroral ionospheric conductivities: a comparison between experiment and modeling, and theoretical f10.7-dependent model for EISCAT and ESR

• Published in: Annales Geophysicae
• Main Authors: Lilensten, J., Blelly, P. L., Kofman, W., Alcaydé, D.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer Verlag 1996
• Subjects: article; Verlagsveröffentlichung; Svalbard; EISCAT
• Online Access: https://doi.org/10.1007/s00585-996-1297-7; https://noa.gwlb.de/receive/cop_mods_00037670; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00037624/angeo-14-1297-1996.pdf; https://angeo.copernicus.org/articles/14/1297/1996/angeo-14-1297-1996.pdf

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 f10.7 index and on the solar zenith angle.