Observations and theory of the formation of stable auroral red arcs

Details Observations and theory of the formation of stable auroral red arcs Observations and theory of the formation of stable auroral red arcs

Feb 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975rvgsp..13..201r&link_type=abstract

Reviews of Geophysics and Space Physics, vol. 13, Feb. 1975, p. 201-242.

Physics

Space Physics

19

Auroras, Electron Energy, Magnetospheric Instability, Red Arcs, Ring Currents, Airglow, Conjugate Points, Geomagnetism, Ion Temperature, Ionospheric Temperature, Magnetic Storms, Magnetohydrodynamic Stability, Plasmapause, Two Dimensional Models

Scientific paper

An analysis is made of the observations and genesis of the stable auroral red (SAR) arcs that occur in mid-latitudes during geomagnetic storms whose geomagnetic planetary index is at least 5. Among the topics discussed are the properties of the SAR arc, its excitation mechanisms, magnetospheric origin, ionospheric model with electron and ion energy equations, one- and two-dimensional modeling, and photometer scans. As the SAR arc, which is generally observed at nighttime, lasts about 10 hours or longer, it is an optical manifestation of the slow release of energy that occurs during the recovery phase of a geomagnetic storm.

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