Articles | Volume 19, issue 1
Ann. Geophys., 19, 25–36, 2001
https://doi.org/10.5194/angeo-19-25-2001
Ann. Geophys., 19, 25–36, 2001
https://doi.org/10.5194/angeo-19-25-2001

  31 Jan 2001

31 Jan 2001

Interpretation of ionospheric F-region structures in the vicinity of ionisation troughs observed by satellite radio tomography

G. A. Aladjev, O. V. Evstafiev, V. S. Mingalev, G. I. Mingaleva, E. D. Tereshchenko, and B. Z. Khudukon G. A. Aladjev et al.
  • Polar Geophysical Institute of the Kola Science Centre, Russian Academy of Sciences, Khalturina 15, 183010, Murmansk, Russia
  • Correspondence to: B. Z. Khudukon (boris@pgi.ru)

Abstract. Tomographic images of the spatial distribution of electron density in the ionospheric F-region are presented from the Russian-American Tomography Experiment (RATE) in November 1993 as well as from campaigns carried out in northern Scandinavia in November 1995 and in Russia in April 1990. The reconstructions selected display the ionisation troughs above the tomographic chains of receivers during geomagnetically quiet and disturbed periods. Two mathematical models of the high-latitude ionosphere developed in the Polar Geophysical Institute have been applied for interpretation of the observed tomographic images.

Key words. Ionosphere (electric fields and currents; ion chemistry and composition; plasma convection)