| 偏振雷达观测强对流雹暴云 |
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| 引用本文： | 张鸿发,郄秀书,王致君,张义军.偏振雷达观测强对流雹暴云[J].大气科学,2001,25(1):38-48. |
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| 作者姓名： | 张鸿发 郄秀书 王致君 张义军 |
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| 作者单位： | 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"九五"攻关项目96-020-01-07,国家自然科学基金资助项目49975002和中国科学院"西部之光"共同资助 |
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| 摘 要： | 根据偏振雷达原理,用C波段双线偏振天气雷达观测得到4例强对流雹暴演变过程的水平反射率ZH(dBZ)和差分反射率ZDR(dB)垂直剖面RHI定量回波资料,分析了这些雹云不同演变阶段的回波参量和偏振特性的关系,说明ZH、ZDR双参量对判别降雹有着明显优势,用雨滴谱的ZH-ZDR分布边界关系对这些雹云回波进行判别降雹分析,给出我国用偏振雷达观测和识别冰雹的研究结果。
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| 关 键 词： | 强对流雹暴 偏振特性 ZDR回波 识别降雹 |
Polarization Radar Observations on Hailstorms |
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| Zhang Hongf,Qie Xiushu,Wang Zhijun and Zhang Yijue.Polarization Radar Observations on Hailstorms[J].Chinese Journal of Atmospheric Sciences,2001,25(1):38-48. |
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| Authors: | Zhang Hongf Qie Xiushu Wang Zhijun and Zhang Yijue |
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| Abstract: | Detailed echo information of horizontal reflectivity ZH and differential reflectivity Z_(DR) were obtained by C-band dual linear polarization weather radar observations of four hailstorms in evolution process in August 1990. And based on polarization radar principles, we have analysed these echo parameters and polarization characteristic in their different evolution stages, and found Z_(DR) echo column is a distinct echo signature for discriminating fallhails. We have also used Z_H and Z_(DR) dual parameters technique to identify hails from mixed rains and hails, and alalysic the results. |
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| Keywords: | sever convective hailstorm polarization property differential reflectivity Z_(DR) echo column identif |
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