Observations of the mid-latitude lower ionosphere in winter

Details Observations of the mid-latitude lower ionosphere in winter Observations of the mid-latitude lower ionosphere in winter

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.1869a&link_type=abstract

Journal of Geophysical Research, vol. 82, May 1, 1977, p. 1869-1875.

Computer Science

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6

Electron Density Profiles, Ionospheric Electron Density, Ionospheric Ion Density, Lower Ionosphere, Midlatitude Atmosphere, Winter, Electron Flux Density, Electron Precipitation, High Energy Electrons, Ionospheric Sounding, Nitric Oxide, Plasma Diagnostics

Scientific paper

Rocket observations of the lower ionosphere in the winter of 1971 at two locations show differences of electron density which are attributed to enhancements of nitric oxide and energetic electron fluxes precipitated into the mesosphere during the poststorm phase of a geomagnetic storm. Electron density distributions were observed above Wallops Island, Virginia, and Keweenaw, Michigan, larger values occurring at Keweenaw. Energetic electron fluxes were greater at Keweenaw (L = 3.9) than at Wallops Island (L = 2.5). While particle ionization was the dominant factor in establishing the electron density during one measurement at Keweenaw, particles were not present two days earlier, even though the electron density distribution was significantly larger than that observed at Wallops Island on both occasions. An accompanying ion composition profile measured at Keweenaw during the earlier flight showed NO(+) to be the dominant ion to 76 km, where the concentration of hydrated ions H3O(+).(H2O)n, exceeded that of NO(+).

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