| 用双线偏振雷达的差分反射率ZDR技术测量降雨和雨滴谱的研究 |
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| 引用本文： | 张鸿发,徐宝祥,王致君,蔡启铭.用双线偏振雷达的差分反射率ZDR技术测量降雨和雨滴谱的研究[J].气象学报,1996,54(2):154-165. |
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| 作者姓名： | 张鸿发 徐宝祥 王致君 蔡启铭 |
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| 作者单位： | 中国气象局中国气象科学研究院，中国科学院南京地理与湖泊研究所 |
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| 基金项目： | 国家自然科学基金,中国科学院兰州分院择优基金 |
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| 摘 要： | 通过计算分析用双线偏振雷达可测到的差分反射率ＺＤＲ（ｄＢ）和反射率ＺＨ（ｄＢｚ）与降雨率Ｒ（ｍｍ·ｈ－１）的关系，得知ＺＤＲ与滴谱尺度分布和不同截断直径谱的谱型变化有关。用（ＺＤＲ，ＺＨ）双参数技术可以推测雨滴尺度分布的形状变化在测量降雨上的影响，能有效提高测而精度，并可提供相态雨区水成物粒子信息。
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| 关 键 词： | 差分反射率，谱型变化，双测量技术，测雨精度 |
| 收稿时间： | 7/7/1992 12:00:00 AM |
| 修稿时间： | 1994/12/9 0:00:00 |
STUDY ON RAINFALL MEASUREMENT AND RAINDROP SPECTRA WITH DIFFERENTIAL REFLECTIVITY ZDR TECHNIQUE OF DUAL LINEAR POLARIZATION RADAR |
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| Zhang Hongf,Xu Baoxiang,Wang Zhijun and Cai Qiming.STUDY ON RAINFALL MEASUREMENT AND RAINDROP SPECTRA WITH DIFFERENTIAL REFLECTIVITY ZDR TECHNIQUE OF DUAL LINEAR POLARIZATION RADAR[J].Acta Meteorologica Sinica,1996,54(2):154-165. |
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| Authors: | Zhang Hongf Xu Baoxiang Wang Zhijun and Cai Qiming |
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| Institution: | Lanzhou Institute of Plateau Atmospheric Physics, Academia Silica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Silica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Silica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Silica, Lanzhou, 730000 |
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| Abstract: | n this paper,it is shown that the differential reflectivity ZDR (dB)is relative to drop size distribution and the spectra shape variation of different truncate diameters.The effects of shape variation of raindrop size distribution on rainfall measurement can be deduced with (ZDR,ZH) dual parameters technique,which is effective to improve the accuracy of rainfall measurement and of the priority of identifying large particles of hydrometeor(distinction hail) from rain region. |
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| Keywords: | Differential reflectivity Variation shape of DSD Dual measurements technique Rainfall accuracy |
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