The L equals 6.7 quiet time barium shaped charge injection experiment 'Chachalaca'

Details The L equals 6.7 quiet time barium shaped charge injection experiment 'Chachalaca' The L equals 6.7 quiet time barium shaped charge injection experiment 'Chachalaca'

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.2738w&link_type=abstract

Journal of Geophysical Research, vol. 80, July 1, 1975, p. 2738-2744.

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Auroral Zones, Barium Ion Clouds, Electric Fields, Ionospheric Currents, Rocket Sounding, Auroral Electrojets, Earth Magnetosphere, Field Aligned Currents, Ionospheric Sounding, Lines Of Force, Solar Activity Effects

Scientific paper

Near dawn on October 9, 1972, UT, a barium plasma injection experiment was carried out from Poker Flat, Alaska, during quiet magnetic conditions (Kp equals 1+). The visible plasma flux tube produced was more diffuse than the flux tubes in previous experiments, but it could be tracked for 30 min out to an altitude of 2.5 earth radii. The flux tube remained integral for about 20 min, when a single striation separated from the main streak. Comparisons of the observed flux tube orientation with theoretical field models show no significant deviations ascribable to field-aligned currents. Cross-field drift rates of the foot of the flux tube indicate an E field of approximately 7 mV/m at 200-km altitude. Although an attempt was made via a jet aircraft flight, barium ions were not detected in the southern conjugate region. No energetic particle precipitation phenomena were observed which could be ascribed to the barium plasma injection.

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