| 穿云飞机电磁噪声的实验分析 |
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| 引用本文： | 张义军,孟青,Paul R.Krehbiel,刘欣生.穿云飞机电磁噪声的实验分析[J].地球物理学报,2004,47(5):785-789. |
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| 作者姓名： | 张义军 孟青 Paul R.Krehbiel 刘欣生 |
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| 作者单位： | 中国气象科学研究院,北京,100081;中国科学院寒区旱区环境与工程研究所,兰州,730000;中国气象科学研究院,北京,100081;New Mexico Institute of Mining and Technology,Socorro,New Mexico,USA;中国科学院寒区旱区环境与工程研究所,兰州,730000 |
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| 基金项目： | 国家自然科学基金重点 ( 4 0 13 5 0 10 )，面上基金项目 ( 4 9975 0 0 3 ) |
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| 摘 要： | 利用高灵敏度和高时空精度的三维雷电观测系统LMA(Lightning Mapping Array)分析穿云飞机的观测资料，发现这一系统在地面可探测到穿云飞机产生的60～66MHz带宽内的电磁辐射，其强度在1W～10kW之间，甚至更高，且与所探测到的辐射源数成线性反比，辐射是由飞机上的尖端放电产生的. 穿云飞机在10～12km高度上产生的辐射最强，且在靠近发生闪电的对流区比远离这一区域强. 飞机穿过不同云系时，辐射强度不同，其中穿过层状云系时，辐射最弱.
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| 关 键 词： | 电磁噪声 电磁辐射 闪电 雷暴云 |
| 文章编号： | 0001-5733(2004)05-0785-05 |
| 收稿时间： | 2002-12-11 |
| 修稿时间： | 2004-3-3 |
Experimental analysis of electromagentic noises from airplane flying trough clouds |
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| ZHANG Yi-Jun , MENG Qing Paul R. Krehbiel LIU Xin-Sheng Chinese Academy of Meteorological Sciences,Beijing ,China Cold and Arid Regions Environmental and Engineering Research Institute,Lanzhou ,China New Mexico Institute of Mining and Technology,Socorro,New Mexico,USA.Experimental analysis of electromagentic noises from airplane flying trough clouds[J].Chinese Journal of Geophysics,2004,47(5):785-789. |
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| Authors: | ZHANG Yi-Jun MENG Qing Paul R Krehbiel LIU Xin-Sheng Chinese Academy of Meteorological Sciences Beijing China Cold and Arid Regions Environmental and Engineering Research Institute Lanzhou China New Mexico Institute of Mining and Technology Socorro New Mexico USA |
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| Institution: | 1.Chinese Academy of Meteorological Sciences, Beijing 100081, China 2 Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou 730000,China 3 New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA |
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| Abstract: | The radiations produced by airplane flying through clouds were measured by using the New Mexico Tech Lightning Mapping Array (LMA) system with high space and time resolution on the ground. The analysis results indicate that the source powers of airplane radiation vary from minimum locatable values of about 1W typically up to 10kW or more in the 60～66MHz passband of the receivers and follow an approximate line inverse proportion to the numbers of radiation sources. This is a kind of radiation produced by discharge. The maximum powers of radiations occurred when airplane flew at 10～12km altitude or near the convective region with lightning flashes occurring. The powers of airplane radiation were different for different kinds of clouds through which airplane flew. The radiation sources of airplane were weakest when airplane flew through the cirrus clouds. |
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| Keywords: | Electromagnetic noise Electromagnetic radiation Lightning discharge Thunderstorm |
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