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| Titel |
Stereoscopic determination of all-sky altitude map of aurora using two ground-based Nikon DSLR cameras |
| VerfasserIn |
R. Kataoka, Y. Miyoshi, K. Shigematsu, D. Hampton, Y. Mori, T. Kubo, A. Yamashita, M. Tanaka, T. Takahei, T. Nakai, H. Miyahara, K. Shiokawa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 31, no. 9 ; Nr. 31, no. 9 (2013-09-06), S.1543-1548 |
| Datensatznummer |
250086105
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| Publikation (Nr.) |
 copernicus.org/angeo-31-1543-2013.pdf |
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| Zusammenfassung |
| A new stereoscopic measurement technique is developed to obtain an all-sky
altitude map of aurora using two ground-based digital single-lens reflex
(DSLR) cameras. Two identical full-color all-sky cameras were set with an
8 km separation across the Chatanika area in Alaska (Poker Flat Research
Range and Aurora Borealis Lodge) to find localized emission height with the
maximum correlation of the apparent patterns in the localized pixels applying
a method of the geographical coordinate transform. It is found that a typical
ray structure of discrete aurora shows the broad altitude distribution above
100 km, while a typical patchy structure of pulsating aurora shows the
narrow altitude distribution of less than 100 km. Because of its portability
and low cost of the DSLR camera systems, the new technique may open a unique
opportunity not only for scientists but also for night-sky photographers to
complementarily attend the aurora science to potentially form a dense
observation network. |
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