| X射线极光强度与亚暴指数AE的相关关系 |
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| 引用本文： | 赵亮,涂传诒.X射线极光强度与亚暴指数AE的相关关系[J].地球物理学报,2005,48(4):739-743. |
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| 作者姓名： | 赵亮 涂传诒 |
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| 作者单位： | 北京大学 |
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| 基金项目： | 国家自然科学基金项目(40174045,40336053和重点项目40436015)，国家重点基础研究项目(G2000078405)共同资助. |
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| 摘 要： | 研究了Polar卫星的极区电离层X射线成像仪（PIXIE）得到的极光X射线成像强度AI（Auroral Intensity）与磁层亚暴指数的相关关系.本文发现，在所选取的1997年至2001年的部分数据中，从完整的X射线图像得到的极光X射线总强度和AE指数有很好的线性相关关系，在全部83组数据中有566％的数据的线性相关系数都在060以上（相关系数最大为097）.所以本文认为极光X射线总强度可以作为新的磁层亚暴卫星实时监测指数.
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| 关 键 词： | 极光 实时监测 极光X射线强度(AI) AE指数 线性相关 |
| 文章编号： | 0001-5733(2005)04-0739-05 |
| 收稿时间： | 2004-10-11 |
| 修稿时间： | 2005-04-10 |
A relation between the auroral X-ray total intensity and the substorm index-AE |
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| ZHAO Hang,Tu Chuan-yi.A relation between the auroral X-ray total intensity and the substorm index-AE[J].Chinese Journal of Geophysics,2005,48(4):739-743. |
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| Authors: | ZHAO Hang Tu Chuan-yi |
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| Institution: | Department of Geophysics, Peking University, Beijing 100871, China Laboratory for Space Weather, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | In this short report a new aurora intensity index (AI) is defined as the total X ray intensity derived from the images obtained by the aurora X ray camera of PIXIE on board the Polar satellite. We found a linear relationship between the magnetosphere sub storm index (AE) and the new aurora intensity index (AI). We found that among the 83 data sets chosen from 1997 to 2001, 566% of which has the linear correlation coefficients larger than 060 (the maximum is 097). We suggest that the auroral X ray intensity (AI) be a candidate of a new real time index obtained from satellite observations for monitoring magnetosphere sub storms. |
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| Keywords: | Aurora Real-time monitoring Auroral X-ray intensity (AI) AE index Linear correlation |
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