Comparison of incoherent scatter observations of electron density, and electron and ion temperature at Millstone Hill with the International Reference Ionosphere

Details Comparison of incoherent scatter observations of electron density, and electron and ion temperature at Millstone Hill with the International Reference Ionosphere Comparison of incoherent scatter observations of electron density, and electron and ion temperature at Millstone Hill with the International Reference Ionosphere

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jatp...51..441b&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 51, May 1989, p. 441-468.

Physics

19

Electron Energy, Incoherent Scattering, Ion Temperature, Ionospheric Electron Density, Daytime, Night Sky, Summer, Winter

Scientific paper

The International Reference Ionospshere (IRI-86), electron density N(e), electron temperature T(e), and ion temperature T(i) models are compared with incoherent scatter data from the extremes of the solar cycle for noon and midnight, for summer, equinox, and winter conditions. Incoherent scatter (IS) results are given for both geomagnetically quiet and moderately to severely disturbed conditions, while the IRI represents monthly mean conditions. The results indicate that the IRI-86 topside model needs modification, as values of N(e) in the topside given by IRI are larger than in the IS measurements, by a factor which increases with increasing height and has a mean value near two at 600 km. The IRI-86 T(e) model has no solar cycle variation. By contrast, the IS results show larger T(e) at solar maximum than at solar minimum during summer at both noon and midnight at 374 km, and at all seasons at noon at the greater heights.

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