The ionospheric storm studies: further development of the mapping technique

I. Kutiev, T. Samardjiev, P. A. Bradley, M. I. Dick, L. R. Cander


The technique of using instantaneous maps for ionospheric storm studies is further developed. Integral parameters are introduced characterizing the main features of each map. These parameters are the net volumes of ?f0F2, ?M(3000)F2and their gradients. The magnetic storm 1-2 March, 1982 was considered and it was found that before the storm commencement and in recovery phase the Net Gradient (NG) is directed steadily to the East, while in the main phase it turns southward. NG shows where the changes of the F-layer come from. The net volume of ?f0F2 (NF) correlates well with Dst and AE indices.


Ionospheric storms;instantaneous maps;ionospheric plasma parameters

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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X