Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm13a1641g&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SM13A-1641
Physics
2704 Auroral Phenomena (2407)
Scientific paper
Conjugate studies of high-latitude geomagnetic activity provide understanding of the global magnetospheric reaction to external perturbations and the role of the ionosphere in modulating and coupling with the magnetosphere. Interhemispheric asymmetries as manifested in auroral emissions have been observed for over 40 years. Until recently, the nature of the problem limited the type and extent of studies that can be performed to either conjugate ground based observations or comparison of space based images from all-sky cameras. With the availability of multiple space-based observing platforms, observations of conjugate aurora have been performed, primarily on an event basis. Recent investigations have used automated processing techniques to perform statistical comparisons of conjugate auroras seen by Polar/UVI and IMAGE/FUV between 2001 and 2003. The automated methods enable access to a very large data set of potential events, for example, over 900 potential conjugate periods were examined in previous studies. This paper will examine the relative merits and shortcomings of the automated techniques previously used. Interactive analysis of selected conjugate events will be used as a standard against which automated analysis will be compared.
Germany Glynn A.
Spann James F.
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