Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE ›› 1999, Vol. 10 ›› Issue (2-English): 95-100.

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Aurora morphology in the dayside

Masaru Ayukawa1, Kazuo Makita2, Natsuo Sato1, Masayuki Kikuchi1, Yang Huigen1,3, Liu Ruiyuan3 and Hu Hongqiao3,4   

  1. 1 National Instiute of Polar Research, Tokyo 173, Japan;
    2 Takushoku University, Tokyo 193, Japan;
    3 Polar Research Instiute of China, Shanghai 200129, China;
    4 Department of Radio Science and Technology, Wuhan University, Wuhan 430072, China
  • Online:1949-06-30 Published:1949-06-30
  • Contact: Masaru Ayukawa

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Abstract:

Day-side aurora phenomena are examined by using TV image data obtained at Ny-Alesund in Svalbard, Godhavn in Greenland and Zhongshan Station, Antarctica. Results are summarized as follows. During the quiet period, in the pre-and post-noon sectors: (1) Weak arc (Sun-aligned arc), (2) Corona aurora and (3) Band aurora are observed in these stations. During disturbed period,Corona aurora and Band aurora are also observed in the pre- and post-noon sectors. However, bright discrete aurora instead of weak are (Sun-aligned arc) develops from thc night side oval in the dawn and dusk sectors. Pre-noon corona and post-noon band aurora are observed in the lower latitude as compared with the location of those auroras during the quiet period.

Key words: dayside aurora, Sun-aligned arc, corona aurora, band aurora