A low-latitude aurora observed at Rikubetsu (L=1.6) during the magnetic storm of September 13,1993
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概要
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A low-latitude aurora was observed at Rikubetsu (L=1.6), Japan during the main phase of the moderate magnetic storm of September 13,1993. Although the sky at Rikubetsu was covered by thick clouds on this day, the aurora was identified as a significant enhancement in the 6300-A emission. It is likely that this aurora occurred in association with the expansion onset of an intense magnetospheric substorm, lasting approximately 1 hour. A notable point is that this aurora was observed during the moderate magnetic storm, indicating that low-latitude auroras are not always associated with intense magnetic storms. It is argued that the so-called Stable Auroral Red (SAR) arc and the substorm-associated low-latitude aurora should be distinguished in their production mechanisms, since the latter aurora must be accounted for in terms of substorm processes.
著者
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Shiokawa Kazuo
Solar-Terrestrial Environmental Laboratory, Nagoya University
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Yumoto Kiyohumi
Solar-terrestrial Environment Laboratory Nagoya University
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Shiokawa Kazuo
Solar Terrestrial Environment Laboratory Nagoya University
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KAMIDE Yohsuke
Solar-Terrestrial Environment Laboratory, Nagoya University
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Kamide Yohsuke
Solar-terrestrial Environment Laboratory Nagoya University
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Tanaka Yoshihito
Solar-Terrestrial Environment Laboratory, Nagoya University
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Kiyama Yoshitaka
Faculty of Science, Niigata University
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Tokumaru Munetoshi
Communication Research Laboratory
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Kiyama Yoshitaka
Faculty Of Science Niigata University
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Tanaka Yoshihito
Solar-terrestrial Environment Laboratory Nagoya University
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