| 双线偏振雷达降雨估测分析 |
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| 引用本文： | 楚荣忠,王致君,刘黎平,贾伟,李小平.双线偏振雷达降雨估测分析[J].气象学报,1997,55(1):103-109. |
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| 作者姓名： | 楚荣忠 王致君 刘黎平 贾伟 李小平 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所 |
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| 基金项目： | “八五”攻关课题,国家自然科学基金 |
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| 摘 要： | 本文提出排序配对逼近法来拟合１９９３—１９９４年１３１４次雷达和雨量计的取样资料，这样既弥补了线性回归法的不足，又提高了区域降水估测的精度。由误差分析知道：估测１０００ｋｍ２以上区域的降水时，对双线偏振雷达而言，其估测精度将极有可能降低到１０％以下且比常规雷达有明显改善；双线偏振雷达的两种估测公式之间差异不大；按降水强弱分型处理可提高常规雷达估测精度，但对双线偏振雷达估测无有利影响
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| 关 键 词： | 双线偏振雷达，降雨强度，排序配对逼近法 |
| 收稿时间： | 3/1/1994 12:00:00 AM |
| 修稿时间： | 9/4/1994 12:00:00 AM |
PRELIMINARY ANALYSIS OF RAINFALL ESTIMATE UTILIZING DUAL LINEAR POLARIZATION RADAR |
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| Chu Rongzhong,Wang Zhijun,Liu Liping,Jia Wei and Li Xiaoping.PRELIMINARY ANALYSIS OF RAINFALL ESTIMATE UTILIZING DUAL LINEAR POLARIZATION RADAR[J].Acta Meteorologica Sinica,1997,55(1):103-109. |
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| Authors: | Chu Rongzhong Wang Zhijun Liu Liping Jia Wei and Li Xiaoping |
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| Institution: | Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica, Lanzhou, 730000;Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica, Lanzhou, 730000 |
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| Abstract: | In the paper,Asp(approx imation after sor tand pair) method have been put forward forget parameters of rainfall estimate.The paper use 1314 samples of radar and 17 precipitation stations at 1993-1994.This method make up the defect of linear regression and raise the precision ofarea rainfall estimate.Having analysed the errors,have gained the result:When estimate area precipitation more than 1 000km2 using dual linear polarization radar,the error will redeced to under 10% probably,it is better more than conventional radar;The difference between estimate formulas of dual linear polarization radar can over look;The method of estimate area rainfall in classified parameters is only effective using conventional radar. |
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| Keywords: | Dual linear polarization radar Rainfall density Approximation after sort and pair(ASP) |
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