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Determination of apparent bulk velocity of auroral images

【标题】Determination of apparent bulk velocity of auroral images

【Title】Determination of apparent bulk velocity of auroral images

【作者】 Wei Zigang; 徐文耀; 张北辰; 胡红桥; 刘瑞源

【Author】 Xu Wenyao ; Zhang Beichen ; Hu Hongqiao ; Liu Ruiyuan

【期刊】极地研究

【Journal】

【期刊年份】1999

【卷】10

【期】

【关键词】 auroral image; all-sky camera; random pattern; correlation analysis

【Keywords】 auroral image; all-sky camera; random pattern; correlation analysis

【摘要】In this paper we use a correlation analysis technique of random pattern to calculation of shift velocity of auroral image. The velocity thus obtained is a kind of apparent "average" velocity of whole image. instead of the velocity of some certain points or parts in the auroral pattern. The technique is used to an example of aurora australis recorded at Zhongshang Station of Antarctica in 1997. The typical velocity of the auroral pattern for the studied cases is about 3 km/s.

【Abstract】In this paper we use a correlation analysis technique of random pattern to calculation of shift velocity of auroral image. The velocity thus obtained is a kind of apparent "average" velocity of whole image. instead of the velocity of some certain points or parts in the auroral pattern. The technique is used to an example of aurora australis recorded at Zhongshang Station of Antarctica in 1997. The typical velocity of the auroral pattern for the studied cases is about 3 km/s.

【基金/项目】

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