| Ka波段雷达弱降水雨量估计方法与试验 |
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| 引用本文： | 史,朝,张,勇,王丽娟.Ka波段雷达弱降水雨量估计方法与试验[J].成都信息工程学院学报,2014(1):23-27. |
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| 作者姓名： | 史 朝 张 勇 王丽娟 |
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| 作者单位： | [1]成都信息工程学院大气探测重点开放实验室,四川成都610225 [2]三亚空中交通管理站空管气象台,海南三亚572000 |
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| 基金项目： | 基金项目：国家863计划资助项目（2007AA061901）;四川省教育厅科研基金资助项目（132212） |
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| 摘 要： | 毫米波雷达适合降水云的水凝粒子的观测,设备轻便且空间分辨率和角度分辨率较高,可用于机载或星载等对有效载荷要求苛刻且关注云雨探测的应用,因而毫米波雷达在气象科学研究中备受关注。在成都地区进行了Ka波段雷达弱降水累积雨量的观测,采用了HTI(高度时间显示)观测模式,分析了雷达测量降水的方法,联合雨量计对比了Z-R关系与衰减法计算累计降水量的效果,并通过测量误差拟合调整经验参数,减小了估测误差。
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| 关 键 词： | 大气遥感 毫米波雷达 降水测量 Z-R关系 |
Ka-band Radar Weak Precipitation Estimation Method and Test |
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| SHI Zhao,ZHANG Yonga,WANG Li-juan.Ka-band Radar Weak Precipitation Estimation Method and Test[J].Journal of Chengdu University of Information Technology,2014(1):23-27. |
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| Authors: | SHI Zhao ZHANG Yonga WANG Li-juan |
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| Institution: | 1 (1. Chengdu Univeity of Information Technology, KLAS, Chengdu 610225 China;2. Sanya air traffic management station, Sanya, |
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| Abstract: | Millimeter-wave radar with a smaller antenna size is suitable for airborne and spaceborne application. High spatial resolution and angular resolution are easy to achieve, so that the millimeter-wave radar is widely used in mete- orological science research. Weak precipitation observation by Ka-band radar was carried out in Chengdu area, and the Hight-Time-indicator mode was used. The method of radar-based precipitation observation was analyzed. The Z-R method and attenuation method both were compared by using rain gauge data. The empirical parameter was fi- nally adjusted for minimum error fitting. |
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| Keywords: | atmospheric sounding millimeter-wave radar precipitation measurements Z-R relationship |
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