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| 雾的雷达后向散射特性研究 | |
| 引用本文： | 赵振维,林乐科,董庆生,吴振森.雾的雷达后向散射特性研究[J].电波科学学报,2001,16(4):498-502. |
| 作者姓名： | 赵振维 林乐科 董庆生 吴振森 |
| 作者单位： | 1. 西安电子科技大学,陕西,西安,710071;中国电波传播研究所青岛分所,山东,青岛,266071 2. 中国电波传播研究所青岛分所,山东,青岛,266071 3. 西安电子科技大学,陕西,西安,710071 |
| 摘 要： | 利用流雾与辐射雾的能见度与含水量的经验公式导出的Gamma雾滴谱分布，得到了平流雾和辐射雾的雷达反射因子Z与雾的能见度、含水量的关系式。以94GHz雷达为例，研究了雾的雷达后向散射特性。最后利用毫米波衰减数据和能见度反演的几场湿海雾参数，研究了湿海雾的后向散射特性，研究结果表明：湿海雾的雷达反射因子可与中到大雨相当。 |
| 关 键 词： | 雾 后向散射截面 雷达反射因子 电流传播 |
| 文章编号： | 1005-0388(2001)04-0498-05 |
Radar backscattering characteristics of fog |
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| ZHAO Zhen wei , LIN Le ke DONG Qing sheng WU Zhen sen.Radar backscattering characteristics of fog[J].Chinese Journal of Radio Science,2001,16(4):498-502. | |
| Authors: | ZHAO Zhen wei LIN Le ke DONG Qing sheng WU Zhen sen |
| Affiliation: | ZHAO Zhen wei 1,2 LIN Le ke 2 DONG Qing sheng 2 WU Zhen sen 1 |
| Abstract: | Based on Gamma distribution model of fog drip size derived from the empirical relation of visibility and water content for advection and radiation fogs, the relations between radar reflectivity factor and fog visibility or water content are proposed. As an example, the radar backscattering characteristics at 94 GHz is given. Finally, based on moist fog parameters derived from terrestrial millimeter wave attenuation data and visibility, the backscattering characteristis of moist fog are discussed, and the results show that the radar reflectivity factor of moist fog approximately corresponds to that of moderate and heavy rain. |
| Keywords: | fog radar cross section radar reflectivity factor visibility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
