Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984georl..11..887j&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 11, Sept. 1984, p. 887-890.
Physics
26
Convection Currents, F Region, Ionospheric Electron Density, Polar Regions, Rotating Plasmas, Daytime, Incoherent Scatter Radar, Polar Caps, Solar Terrestrial Interactions
Scientific paper
Preliminary observations of dayside high latitude ionospheric plasma convection with the Sondrestrom incoherent-scatter radar indicate that plasma can be observed to enter the polar cap region through rotational reversals at most local times between dawn and dusk and not just in a narrow region around noon. Assuming that rotational reversals are signatures of a solar wind-magnetosphere interaction which drives magnetospheric convection, the observations indicate that this interaction occurs over a longitudinally wide area of the dayside magnetosphere. The observations also show that the distribution of F-region plasma in the polar cap is dependent on ionization sources anywhere between dawn and dusk in the dayside high latitude ionosphere.
Banks Peter M.
Clauer Robert C.
Friis-Christensen Eigil
Jorgensen Stockflet T.
Kelly John D.
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