Observation by the incoherent scatter technique of the hot spots in the auroral zone ionosphere

Details Observation by the incoherent scatter technique of the hot spots in the auroral zone ionosphere Observation by the incoherent scatter technique of the hot spots in the auroral zone ionosphere

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987georl..14.1158k&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 14, Nov. 1987, p. 1158-1161. CNRS-supported research.

Physics

10

Auroral Zones, Electric Fields, F Region, Incoherent Scattering, Ion Temperature, Ionospheric Currents, Eiscat Radar System (Europe), Space Plasmas

Scientific paper

A first set of incoherent-scatter data measured at EISCAT is presented, showing profiles of very high ion temperature (greater than 8000 K), observed along geomagnetic field lines. The incoherent-scatter spectra, their form, and the influence of the ionospheric electric field are analyzed. The Joule heating energy input is estimated by two methods: from the electric field and from direct measurements of ion temperature. These estimations show that the measurements can be explained by the frictional heating between fast moving species.

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