| 北京地区雷电定位系统场地误差及其结构分析 |
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| 引用本文： | 陈明理,刘欣生,郭昌明.北京地区雷电定位系统场地误差及其结构分析[J].气象学报,1993,51(1):66-74. |
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| 作者姓名： | 陈明理 刘欣生 郭昌明 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所 730000
(陈明理，刘欣生)，中国科学院兰州高原大气物理研究所 730000(郭昌明) |
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| 基金项目： | “国家七·五”攻关资助 |
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| 摘 要： | 本文利用1988,1989两年北京地区雷电定位系统(LLS)探测到的雷电资料,采用作者在文献10]中提出的参数化方法,分别计算了该系统中各定向仪(DF)的场地误差曲线。结果表明,场地误差曲线不仅是测量方位角的偶周期函数,而且包含着奇周期的成份。同时还表明,同一场地具有相对稳定的误差曲线。 文中还讨论了场地误差产生的原因,并首次提出偶极辐射是产生场地误差的主要原因的观点,推导出了它可能产生的场地误差的函数形式。用此理论可很好地解释实际计算出的各站场地误差曲线的结构特征。
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| 关 键 词： | 雷电定位 场地误差 偶极辐射 |
| 收稿时间： | 1990/6/23 0:00:00 |
| 修稿时间： | 1990/10/18 0:00:00 |
SITE ERRORS AND ITS STRUCTURE OF A LIGHTNTNG LOCATING SYSTEM IN BEIJING REGION |
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| Chen Mingli,Liu Xinsheng and Guo Changming.SITE ERRORS AND ITS STRUCTURE OF A LIGHTNTNG LOCATING SYSTEM IN BEIJING REGION[J].Acta Meteorologica Sinica,1993,51(1):66-74. |
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| Authors: | Chen Mingli Liu Xinsheng and Guo Changming |
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| Institution: | Lanzhou Institute of Plateau Atmospheric Physics, 730000;Lanzhou Institute of Plateau Atmospheric Physics, 730000;Lanzhou Institute of Plateau Atmospheric Physics, 730000 |
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| Abstract: | Using a parameterization method of site errors estimation in lightning locating system(LLS)and the real data observed by a LLS consisted of three direction finders (DFs) in Beijing region, the site error correction curves for all DFs for 1988 and 1989 respectively are obtained.The result shows that the curves, as a function of measured bearing, not only include the even-sinusoidal component but also the odd one. It also indicates that the site error correction curves are stable via time. For discussion, we propose that the stimulated radiation of dipole isprobablely the dominant factor which can produce serious site errors, and a mathmatics model for site errors due to dipole radiation is developed, This model can be used to explain reasonably the characteristics of structure of site errors. |
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| Keywords: | Lightning location Site error Dipole radiation |
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