Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsm33c..06z&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SM33C-06
Physics
2407 Auroral Ionosphere (2704), 2455 Particle Precipitation, 2704 Auroral Phenomena (2407), 2706 Cusp, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
Since the interplanetary shock created earth dayside aurora was found space, scientists have been looking for methods to observe the aurora closely in order to identify the auroral forms that indicate the auroral particle acceleration mechanisms. The most promising method is to fly high-altitude long-duration balloons above the Antarctic using a near-infrared (NIR) camera. The brightness of the sunlit atmosphere makes auroral observation very difficult. Model results show that the sky brightness diminishes as altitude and wavelength increases and that the bright auroral N2+ Meinel emissions are comparable to the sunlit sky brightness above 45 km altitude. To test this theory, we have done an auroral test observation at the Poker Flat Research Range using a JPL built NIR camera. Significant auroras were observed during the night time and twilight when the sky brightness is similar to that at the altitudes 45 - 50 km.
Gladstone Randy
Lummerzheim Dirk
Zhou Xiangfa
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