Auroral Research

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Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.230..457s&link_type=abstract

Astrophysics and Space Science, Volume 230, Issue 1-2, pp. 457-469

Astronomy and Astrophysics

Astrophysics

1

Sanae, Aurorae, Television Imaging, Auroral Substorms, Giant Undulations, Super Fast Auroral Waves And Particle Spectra

Scientific paper

An auroral substorm, unique in that it occurred at the relatively low latitude of SANAE, is described based on the full range of observational techniques at SANAE together with satellite data. Some features fit the generally accepted picture of substorms, others do not. From ground-based television imagery of Giant Undulations the temporal evolution of their dynamics is obtained and possible theories for their extistence examined. Super fast auroral waves, with speeds of up to 1200 km s-1, have been observed for the first time. Their characteristics can not, as yet, be accounted for by a single generation mechanism. The potential value of simultaneous recordings of aurorae by television and riometer is discussed

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