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Ground based observation of proton aurora using All-Sky Camemra at polar regions

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Title
Ground based observation of proton aurora using All-Sky Camemra at polar regions
Other Titles
전천카메라를 이용한 극지방 양성자 오로라 지상관측
Authors
Kim, Jieun
Kim, Jeong-Han
Jee, Geonhwa
Lee, Changsup
Kil, Hyosub
Keywords
proton aurora
Issue Date
2019
Citation
Kim, Jieun, et al. 2019. Ground based observation of proton aurora using All-Sky Camemra at polar regions. The 2nd Korea Geosience Union annual academic conference. Pyeongchang. 2019.07.03~2019.07.05.
Abstract
The hydrogen emission is a unique feature of proton aurora in distinction from electron auroras. The emission profile viewed along the magnetic zenith from the ground is Doppler shifted with its peak blue shifted, resulting from excited energetic H atoms. Since traditional all-sky cameras (ASC) using-wide band filter do not provide the information of the Doppler shift, tilting filter type ASC for observation of proton aurora (PASC) has been developed in collaboration with Johns Hopkins University Applied Physics Laboratory. This PASC provides images of Hα emission at centered 656.3 nm, and the line profile can be identified using the effect of shifting the center of the wavelength by tilting the filter. The PASC was first installed at the Jang Bogo station, Antarctica in end of 2016, followed by second PASC at Kjell Henriksen Observatory, Norway, in 2017. Both sites contain polar cusp regions in the south and north, respectively, which offers opportunity to investigate the Doppler velocity and energy of cusp precipitating protons contributing to the Earth's atmosphere variability. In this presentation, we are going to introduce to a novel method of PASC, and some early results and their implications are reported.
URI
https://repository.kopri.re.kr/handle/201206/12291
Conference Name
The 2nd Korea Geosience Union annual academic conference
Conference Place
Pyeongchang
Conference Date
2019.07.03~2019.07.05
Appears in Collections  
2019-2019, Understanding polar upper atmospheric changes by energy inputs from the space environment and the lower atmosphere (19-19) / Jee, Geonhwa (PE19020)
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