Properties of 6300-A auroral emissions at South Pole

Details Properties of 6300-A auroral emissions at South Pole Properties of 6300-A auroral emissions at South Pole

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.1402r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Feb. 1, 1989, p. 1402-1416. Research supported by the Lockheed Indepe

Physics

30

All Sky Photography, Antarctic Regions, Auroras, Geomagnetism, Light Emission, Polar Caps, Auroral Arcs, Convection, Daytime, Diurnal Variations, Interplanetary Magnetic Fields, Photographs

Scientific paper

An image-intensified all-sky camera at the South Pole was used to make 6300-A observations of the polar cap region during the period April to August, 1983. The auroral structures observed are correlated with the signatures registered by a meridian slit imager. The characteristics of morning and afternoon auroral ovals are compared. The shapes and motions of sun-aligned arcs are examined, showing that two thirds of them appear in the dawnside half of the polar cap. Correlations with a limited amount of IMF measurements indicate that more sun-aligned arcs occur when B(z) has a positive value.

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