Yonghua, Liu and Ruiyuan, Liu and Longsong, He and Hongqiao, Hu and Nishino, Masanori and Yasuharu, Sano and Yamagishi, Hisao and Sato, Natuo (1999) Preliminary result of imaging riometer at Zhongshan Station, Antarctica. Advances in Polar Science, 10 (1). pp. 33-40.
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Abstract
An imaging riometer with 8 x 8 antenna array was installed successfully at Zhongshan Station, Antarctica in January 1997. The structure and working principle of the instrument are described. The first set of observation data is analyzed and the quiet day curve (QDC) are deduced. Preliminary results show that cosmic noise absorption is very different between night side and magnetic noon. In night side, there are often short-duration impulsive absorption events with a large absorption area in the northern side of the station, stretching in an east-west direction. In magnetic noon the absorption event is continuous, which lasts for more than 1 h with the absorption area strengthening in the northern and southern sides and weakening in the middle. It is thought that the absorption is caused by aurora particle precipitation in night side and by soft particle precipitation or convection in cusp at magnetic noon.
| Item Type: | Article |
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| Related URLs: | |
| Keywords: | cosmic noise, absorption, QDC, Zhongshan Station, Antarctica. |
| Subjects: | Unspecified |
| Organizations: | Unspecified |
| Date Deposited: | 26 Apr 2023 10:52 |
| URI: | http://library.arcticportal.org/id/eprint/2171 |
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