The August 28, 1978, storm. I - GEOS 2 observations of the initial magnetopause crossings and STARE observations near the ionospheric convection reversal

Details The August 28, 1978, storm. I - GEOS 2 observations of the initial magnetopause crossings and STARE observations near the ionospheric convection reversal The August 28, 1978, storm. I - GEOS 2 observations of the initial magnetopause crossings and STARE observations near the ionospheric convection reversal

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.1449s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Feb. 1, 1985, p. 1449-1457.

Computer Science

Sound

5

Convection, Geos 2 Satellite, Ionospheric Sounding, Magnetic Storms, Magnetopause, Radar Measurement, Ionospheric Drift, Ring Currents, Scandinavia

Scientific paper

During the postdawn period in August 28, 1978 from 0750 to 0830 magnetic local time a magnetopause inward drift to 6.6 earth radii was observed, causing the poleward boundary of the westward auroral electrojet to move south to geomagnetic latitudes of less than 66 deg. Presented is a comparative analysis of the observations of the GEOS 2 satellite, located in that morning sector throughout the event, and of the Scandinavian Twin Auroral Experiment. It is considered that large-scale merging was occurring near the dawnside magnetopause. It is suggested that localized merging may be controlled as much by the sunward-moving particles within the magnetosphere as by the antisunward-streaming solar wind particles in the magnetosheath. Between the magnetopause and the ionosphere a large increase in the ring current accompanied the shift of the convection reversal toward the equator.

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