TERRAPUB Earth, Planets and Space

Earth Planets Space, Vol. 64 (No. 6), pp. 433-440, 2012

Numerical modeling of the global ionospheric effects of storm sequence on September 9-14, 2005—comparison with IRI model

M. V. Klimenko1,2, V. V. Klimenko1, K. G. Ratovsky3, and L. P. Goncharenko4

1N.V. Pushkov IZMIRAN RAS, West Department, Kaliningrad, 236010, Russia
2Kaliningrad State Technical University, Kaliningrad, Russia
3Institute of Solar-Terrestrial Physics SB RAS, Irkutsk, Russia
4Haystack Observatory, Massachusetts Institute of Technology, Westford, Mass., U.S.A.

(Received May 31, 2010; Revised April 14, 2011; Accepted June 27, 2011; Online published July 27, 2012)

Abstract: This study presents the modeling of ionospheric response to geomagnetic storms of September 9-14, 2005. We examine the performance of the Global Self-Consistent Model of Thermosphere, Ionosphere and Protonosphere (GSM TIP) and International Reference Ionosphere-2000 (IRI-2000), and compare the modeling predictions with the ionosonde and incoherent scatter radar observations over Yakutsk, Irkutsk, Millstone Hill and Arecibo stations. IRI-2000 predicted well all negative foF2 disturbances. In comparison with IRI-2000, the GSM TIP better reproduced the positive phase observed during the disturbed times. We discuss the possible reasons of the differences between the GSM TIP model calculations, IRI predictions, and the observations.
Key words: Ionospheric storm, foF2 disturbances, thermospheric wind, neutral atmosphere composition, electric field, numerical modeling, IRI model.

Corresponding author E-mail: maksim.klimenko@mail.ru

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