Geomagnetism and Aeronomy

, Volume 58, Issue 2, pp 207–213 | Cite as

Comparison of Ionospheric Parameters during Similar Geomagnetic Storms

  • D. V. Blagoveshchensky


The degree of closeness of ionospheric parameters during one magnetic storm and of the same parameters during another, similar, storm is estimated. Overall, four storms—two pairs of storms close in structure and appearance according to recording of the magnetic field Х-component—were analyzed. The examination was based on data from Sodankyla observatory (Finland). The f-graphs of the ionospheric vertical sounding, magnetometer data, and riometer data on absorption were used. The main results are as follows. The values of the critical frequencies foF2, foF1, and foE for different but similar magnetic storms differ insignificantly. In the daytime, the difference is on average 6% (from 0 to 11.1%) for all ionospheric layers. In the nighttime conditions, the difference for foF2 is 4%. The nighttime values of foEs differ on average by 20%. These estimates potentially make it possible to forecast ionospheric parameters for a particular storm.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Buonsanto, M.J., Ionospheric storms: A review, Space Sci. Rev., 1999, vol. 88, pp. 563–601.CrossRefGoogle Scholar
  2. Driatskii, V.M., Priroda anomal’nogo pogloshcheniya kosmicheskogo radioizlucheniya v nizhnei ionosfere vysokikh shirot (The Nature of Anomalous Absorption of Cosmic Radio Emission in the Lower Ionosphere at High Latitudes), Leningrad: Gidrometeoizdat, 1974.Google Scholar
  3. Mendillo, M., Storms in the ionosphere: Patterns and processes for total electron content, Rev. Geophys., 2006, vol. 44, RG4001. doi 10.1029/2005RG000193CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.St. Petersburg State University of Aerospace Manufacturing InstrumentationSt. PetersburgRussia

Personalised recommendations