| 全国降雨率累积分布R1（0.01）的研究 |
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| 引用本文： | 侯光明,王健,郭巧,闫绪娴.全国降雨率累积分布R1（0.01）的研究[J].北京理工大学学报,2002,22(2):262-264. |
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| 作者姓名： | 侯光明 王健 郭巧 闫绪娴 |
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| 作者单位： | 1. 北京理工大学,管理与经济学院,北京,100081;2. 国家无线电监测中心,北京,100037;3. 北京理工大学,网络信息中心,北京,100081 |
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| 基金项目： | 信息产业部基金资助项目 |
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| 摘 要： | 根据10年(1970～1979年)65个气象站雨量自记录,654个一般站气象资料,应用地理信息系统(GIS)技术,研究0.01%时间百分数的降雨率累计分布,包括年平均、季平均、月平均、最坏月的分布.还探索了对无降雨资料地区进行有效的1 min降雨率累计分布研究的新方法,可作为对ITU-R Rep.563-4等的补充.研究成果可用于毫米波传播计算,对无线电频谱管理和无线电通信系统设计具有重要意义.
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| 关 键 词： | 降雨率 电波传播 地理信息系统 降雨衰减(雨衰) 降雨散射 |
| 文章编号： | 1001-0645(2002)02-0262-03 |
| 收稿时间： | 2/2/2002 12:00:00 AM |
| 修稿时间： | 2002年2月2日 |
A Study on the Cumulative Distributions of Rainfall Rate R1(0.01) Over China |
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| HOU Guang ming,WANG Jian,GUO Qiao and YAN Xu xian.A Study on the Cumulative Distributions of Rainfall Rate R1(0.01) Over China[J].Journal of Beijing Institute of Technology(Natural Science Edition),2002,22(2):262-264. |
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| Authors: | HOU Guang ming WANG Jian GUO Qiao and YAN Xu xian |
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| Institution: | HOU Guang ming 1,WANG Jian 2,GUO Qiao 3,YAN Xu xian 1 |
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| Abstract: | Based on the statistics of 654 meteorological observatories extending from 1970 to 1979, cumulative distribution of rainfall rate is studied applying geographic information system technology, including rainfall rate exceeding an average of 0 01% for the year, season, month and the worst month. An effective new approach is used to study on the 1 min rainfall rate in the region where no rainfall information is available. This approach can be regarded as a supplement to the ITU R Rep. 563 4 et al. The results can be used to obtain the propagation path loss in frequency bands above 10 GHz and are of importance to radio spectrum management and the design of radio communication systems. |
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| Keywords: | rainfall rate radiowave propagation geographic information system (GIS) attenuation due to rain (rain attenuation) hydrometeor scatter |
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