| 基于GPS的广州地区电离层闪烁谱分析 |
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| 引用本文： | 范小邦,黄江,徐杰,邓柏昌,全宏俊.基于GPS的广州地区电离层闪烁谱分析[J].空间科学学报,2018,38(3):351-360. |
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| 作者姓名： | 范小邦 黄江 徐杰 邓柏昌 全宏俊 |
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| 作者单位： | 1 华南理工大学物理与光电学院 广州 510640; |
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| 基金项目： | 国家自然科学基金项目资助（41574145） |
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| 摘 要： | 利用广州站GPS电离层闪烁监测仪2014和2015年的观测数据，从150例典型闪烁事件中提取出4820例闪烁谱和闪烁谱指数，分析发现广州地区闪烁对应单幂律谱和双幂律谱两大典型闪烁谱.这些闪烁谱可以细分为5类，初步分析了这5类闪烁谱的特征和产生原因.通过统计分析发现，谱指数分布在0.63~9.57，平均谱指数为3.86，78.5%以上的谱指数分布在0~6，83.4%中弱闪烁强度的谱指数值分布在0~7，89.27%的强闪烁强度的谱指数分布在5~10，谱指数随闪烁强度的增强有上升趋势.
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| 关 键 词： | GPS 电离层闪烁 不规则体 闪烁谱 谱指数 |
| 收稿时间： | 2017-07-28 |
Analysis of Ionospheric Scintillation Spectra Characteristics in Guangzhou Region |
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| Affiliation: | 1 Department of Physics, South China University of Technology, Guangzhou 510640;2 Guangzhou Meteorological Satellite Ground Station, Guangzhou 510640;3 Guangdong Ecological Meteorology Center, Guangzhou 510640 |
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| Abstract: | Based on the data of GPS ionospheric scintillation observed at Guangzhou region in 2014 and 2015, 4820 scintillation spectra and spectral indexes are extracted from 150 typical flicker events. The analyses find that there are mainly two types of scintillation spectra in Guangzhou region, which can be subdivided into five categories. The characteristics and causes of typical scintillation spectrum are analyzed. The study found that the spectral index are from 0.63 to 9.57, and the average spectral index is 3.86. More than 78.5% of the spectral indexes are distributed from 0 to 6. 83.4% of weak scintillation intensity spectral indexes are distributed from 0 to 7, and 89.27% of strong flashing spectral indexes are distributed from 5 to 10. The spectral index increases as the flicker index increasing. |
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