Other
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm12a..05c&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM12A-05
Other
2704 Auroral Phenomena (2407), 2794 Instruments And Techniques
Scientific paper
The technique of imaging the aurora from satellites is about 40 years old, and during that time has enabled significant contributions towards a better understanding of the phenomenon itself as well as related processes in the magnetosphere and ionosphere. Throughout this period there has been an emphasis on the need to acquire images of the global auroral distribution as a reference for a variety of investigations using complementary techniques in space or on the ground. The success of these imagers flown on high altitude satellites was enhanced by utilizing the FUV portion of the auroral spectrum that was bright against the Earth's sunlit atmosphere. A significant advance in monitoring the aurora is anticipated with the future launch of the KauFu satellites into elliptical orbits. The FUV imagers on board will for the first time provide continuous imaging of the aurora in the Northern Hemisphere. These global measurements are still important and need to be continued, but there is also a trend toward exploiting the opportunities for new science from low altitude satellites. One example is the Japanese REIMEI satellite that was launched in 2005 to provide high spatial and temporal resolution of nighttime aurora in three different emissions along with a plasma current monitor. Another example is the Fast Auroral Imager on the ePOP satellite, which is expected to be launched in 2007 to observe both fine structure in aurora using the near-IR molecular emissions, and to facilitate the study of soft-electron precipitation using the 630 nm emission line of atomic oxygen. Future advances in auroral imaging from space will continue to follow developments in related technology.
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