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논문 기본 정보

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학술저널
저자정보
지건화 (한국해양과학기술원 부설 극지연구소) 함영배 (과학기술연합대학원대학교) 최윤승 (Korea Polar Research Institute Incheon) 김은솔 (Korea Polar Research Institute) 이창섭 (한국해양과학기술원 부설 극지연구소) 권혁진 (한국해양과학기술원 부설 극지연구소) Trond S. Trondsen (Keo Scientific Ltd. Calgary AB T2Z Canada) 김지은 (한국해양과학기술원 부설 극지연구소) 김정한 (한국해양과학기술원 부설 극지연구소)
저널정보
한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제38권 제4호
발행연도
2021.12
수록면
203 - 215 (13page)

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The auroral observation has been started at Jang Bogo Station (JBS), Antarctica by using a visible All-sky camera (v-ASC) in 2018 to routinely monitor the aurora in association with the simultaneous observations of the ionosphere, thermosphere and magnetosphere at the station. In this article, the auroral observations are introduced with the analysis procedure to recognize the aurora from the v-ASC image data and to compute the auroral occurrences and the initial results on their spatial and temporal distributions are presented. The auroral occurrences are mostly confined to the northern horizon in the evening sector and extend to the zenith from the northwest to cover almost the entire sky disk over JBS at around 08 MLT (magnetic local time; 03 LT) and then retract to the northeast in the morning sector. At near the magnetic local noon, the occurrences are horizontally distributed in the northern sky disk, which shows the auroral occurrences in the cusp region. The results of the auroral occurrences indicate that JBS is located most of the time in the polar cap near the poleward boundary of the auroral oval in the nightside and approaches closer to the oval in the morning sector. At around 08 MLT (03 LT), JBS is located within the auroral oval and then moves away from it, finally being located in the cusp region at the magnetic local noon, which indicates that the location of JBS turns out to be ideal to investigate the variabilities of the poleward boundary of the auroral oval from long-term observations of the auroral occurrences. The future plan for the ground auroral observations near JBS is presented.

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