Physics
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....96..267m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Jan. 1, 1991, p. 267-274.
Physics
7
Auroral Electrojets, Geomagnetism, Northern Hemisphere, Southern Hemisphere, Digital Techniques, Ground Stations, Interplanetary Magnetic Fields, Magnetic Recording
Scientific paper
A unique data set of digital and digitized analog magnetic recordings from 22 stations in the Antarctic was used to construct the Southern Hemisphere 'equivalent' of the Northern Hemisphere auroral electrojet index, AE, for two separate intervals of magnetic disturbance (totaling seven days) in June 1982. A second index constructed using only 9 stations between about 60-70 deg geomagnetic south latitude showed only small differences from that using all 22 stations. For the universal time interval (00-11 UT inclusive) when a reasonably good coverage of ground stations exists in the austral auroral zone, it is found that there is a good correlation between the Northern and Southern Hemisphere indices; this is the case even though the southern ionosphere is largely in total darkness during the interval studied. No effect of the north-south direction of the interplanetary magnetic field is found on the correlation.
Akasofu Syuh-Ichi
Lanzerotti Louis J.
Maclennan Carol G.
Wilkinson Phil J.
Zaitsev Alexander N.
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