Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1069s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 17, July 1990, p. 1069-1072. Research supported by the Southwest Research In
Physics
54
Flux Transfer Events, Geomagnetic Pulsations, Magnetohydrodynamic Flow, Magnetopause, Plasma Bubbles, Polar Cusps, Field Aligned Currents, International Sun Earth Explorers, Magnetic Field Reconnection, Magnetic Signatures
Scientific paper
Recent observations at the magnetopause and of the high-latitude ionosphere suggest that the cusp may be pulzed in nature. Ground-based observations in the dayside auroral oval reveal transient optical features accompanied by bursts of enhanced plasma flow. Also, recent interpretation has shown cusp satellite data to be consistent with a burst of enhanced reconnection. These observations are used to produce a scenario in which both the satellite and ground-based observations can be fitted. The scenario developed is based on the flux transfer event (FTE) models of Southwood et al. (1988) and Scholer (1988) and shows that the signatures, at both low and high altitudes, can be interpreted in terms of FTEs.
Lockwood Marian
Smith Mark F.
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