Numerical modeling of ionospheric parameters during sequence of geomagnetic storms on September 9-14, 2005

In the given research it is presented the numerical calculation results of ionospheric parameters during sequence of geomagnetic storms on September 9–14, 2005. The calculations were executed with use of the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP), developed in WD IZMIRAN. The potential difference through polar caps (PDPC) and field-aligned currents of the second region (FAC2) were set as function of Kp-index. Thus, the time delay of the FAC2 variations relative to the PDPC varia- tions was considered. The obtained calculation results were analyzed and compared with experimental data obtained at stations Irkutsk, Yakutsk, Arecibo and Millstone Hill.