A case study of a high-latitude ionospheric electron-density depletion

Details A case study of a high-latitude ionospheric electron-density depletion A case study of a high-latitude ionospheric electron-density depletion

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jatp...46..517s&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 46, June-July 1984, p. 517-520.

Physics

5

Arctic Regions, Incoherent Scatter Radar, Ionospheric Electron Density, Radio Probing, Electron Energy, Ion Temperature, Molecular Ions, Positive Ions, Vertical Distribution

Scientific paper

Incoherent-scatter measurements inside and outside an ionospheric electron-density depletion are described. The density depletion is probably caused by an enhancement of NO(+) ions and subsequent dissociative recombination. The NO(+) ions are increased because high electric fields present at the geographical location of the density depletion speed up the reaction of O(+) and N2 to NO(+) and N. The electron as well as the ion temperature within the density depletion are strongly enhanced, the latter due to Joule heating, also caused by the electric field.

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