Computer Science – Sound
Scientific paper
May 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.4114b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 88, May 1, 1983, p. 4114-4118.
Computer Science
Sound
60
F Region, Ion Temperature, Ionospheric Sounding, Ohmic Dissipation, Resistance Heating, Incoherent Scatter Radar, Particle Motion, Plasma Density, Radar Measurement, Time Response
Scientific paper
The present investigation has the objective to describe F region ion temperature results obtained near summer solstice by the Chatanika and Millstone Hill radars. The experimental mode was Magnetosphere-Ionosphere-Thermosphere Radar Studies (MITHRAS) 1, i.e., a wide latitudinal coverage experiment. Simultaneous Chatanika and Millstone Hill incoherent scatter radar measurements for two summer 24-hour periods show significantly greater Joule heating enhancements of ion temperatures in the morning sector for similar magnitudes of ion velocity. The morning/evening auroral zone temperature asymmetry is interpreted to be a consequence of different neutral wind behaviors in the morning and evening. It is inferred that the neutral wind is consistent with global thermospheric models and with more direct wind measurements. In the evening, the neutral wind is nearly aligned with the ion flow because of ion drag. In the morning, the neutral wind is predominantly equatorward.
Baron Martin J.
Wand Ronald H.
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