Computer Science – Sound
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jatp...47..693e&link_type=abstract
Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 47, July 1985, p. 693-705, 707-712. Research supported by
Computer Science
Sound
4
Auroral Zones, Ionospheric Currents, Magnetic Disturbances, Plasma Dynamics, Rocket Sounding, E Region, Electric Fields, Energetic Particles, Luminosity, Magnetic Storms, Norway, Particle Precipitation, Positive Ions, Rocket Launching
Scientific paper
Two rockets were launched simultaneously from the Andoya Rocket Range in northern Norway into and through a Harang discontinuity region during a small isolated substorm. Each was equipped with an array of instruments for monitoring ionospheric electric fields and auroral particles. Different sized rockets allowed both to traverse a range of 300 km while introducing altitude separations of up to 440 km, and separations between the feet of the magnetic field lines intersecting the payloads of up to 100 km. The data sets, coupled with multi-station ground-based observations, provide information on the structure and dynamics of the Harang discontinuity region. Two boundaries were encountered. The first electric field reversal was observed simultaneously by both payloads in a region of weak precipitation, while the second reversal was associated with an intense auroral band. Since an unambiguous interpretation of these data is not possible, two alternative scenarios are presented. In one the discontinuity becomes realigned during the flight following a decay in the activity. The second involves a triple cell convection system, possibly the result of an eddy in the flow.
Bryant Duncan A.
Egeland A. A.
Hall David S.
Maseide Karl
Maynard Nelson C.
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