Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa52a0398s&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SA52A-0398
Physics
2431 Ionosphere/Magnetosphere Interactions (2736), 2439 Ionospheric Irregularities, 2463 Plasma Convection, 2736 Magnetosphere/Ionosphere Interactions
Scientific paper
Algorithms have been developed for automated identification of SuperDARN Radar Boundaries and for DMSP Particle Precipitation Boundaries. Here, a comparison is made between simultaneous boundary determinations from these two sources, in order to statistically delineate their relationship. The convection reversal boundary is compared to the open-closed boundary as seen in particle precipitation as well as to the poleward boundary of the main oval. These boundaries compare in the expected way, as a function of IMF Bz. The equatorward boundary of scatter is compared to the equatorward boundary of the oval as well as to the structured-unstructured boundary. The result of this comparison is local time dependent. The automated analysis of both of these data sets can provide information about the state of the auroral ionosphere. A historical/real-time view of the state of the auroral oval, called OVATION and is available on the web at http://sd-www.jhuapl.edu/Aurora.
Barnes James R.
Meng Chun
Newell Patrick T.
Ruohoniemi Michael J.
Skura Joseph P.
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