Articles | Volume 33, issue 3
Ann. Geophys., 33, 381–394, 2015
https://doi.org/10.5194/angeo-33-381-2015
Ann. Geophys., 33, 381–394, 2015
https://doi.org/10.5194/angeo-33-381-2015

Regular paper 23 Mar 2015

Regular paper | 23 Mar 2015

Contribution of proton and electron precipitation to the observed electron concentration in October–November 2003 and September 2005

P. T. Verronen et al.

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Electron concentrations observed by EISCAT radars can be reasonable well represented using AIMOS v1.2 satellite-data-based ionization model and SIC D-region ion chemistry model. SIC-EISCAT difference varies from event to event, probably because the statistical nature of AIMOS ionization is not capturing all the spatio-temporal fine structure of electron precipitation. Below 90km, AIMOS overestimates electron ionization because of proton contamination of the satellite electron detectors.