Physics
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jastp..70.1448m&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 70, Issue 11-12, p. 1448-1454.
Physics
Geomagnetic Storm, Electron Density, Neutral Gases, Ion Drifts
Scientific paper
Neutral gas composition and ionospheric measurements taken by the Dynamic Explorer 2 satellite at F2-region heights (280-300 km) during an intense geomagnetic storm (peak Dst=-187 nT) were used to analyze the role of some possible physical mechanisms responsible for the changes of electron density at high and middle latitudes. The storm considered in this study occurred on 26 September 1982. The main features observed were increases of electron density during the initial stages of the storm at middle latitudes; followed by decreases of electron density at high and mid-high latitudes during the main phase of the storm and the first phase of the recovery. Delayed increases of electron density during the recovery phase have also been observed at mid-high latitudes (50-60°). Several mechanisms were discussed in explaining the features observed for the electron density variations.
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