Study of the ionosphere during a magnetospheric storm using data on the ground and in space

Details Study of the ionosphere during a magnetospheric storm using data on the ground and in space Study of the ionosphere during a magnetospheric storm using data on the ground and in space

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011adspr..47..105b&link_type=abstract

Advances in Space Research, Volume 47, Issue 1, p. 105-114.

Computer Science

Sound

Scientific paper

For the magnetospheric storm of May 14-16, 1997 geophysical data of satellites DMSP and IMP-8 are compared with data of radio propagation on the high-latitude HF radio path of Heiss Island - St. Petersburg and data from European ionosondes. Peculiarities of variations of the operational frequencies range MOF-LOF (maximum and lowest observed frequencies) on the path were considered. The range has been determined by the method of oblique ionospheric sounding (OIS). The latter is more informative for observations during a magnetic storm compared to the vertical sounding method. Nevertheless, an analysis of variations of the critical frequency of the ionospheric F2 layer from the chain of European ionosondes was carried out. For interpretation of results, data of magnetospheric parameters, AE-indexes and riometer data were used. The variations of both frequency range on the path and critical frequencies of the F2 layer through the ionosondes chain during the disturbed period had certain regularities of behaviour. These regularities are being explained from the physical point of view. The analysis of the satellite DMSP data has showed that a magnetospheric disturbance causes displacement equatorward of precipitation and some growth of its width and energy.

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