| 用T-矩阵法分析降水粒子在微波段下的Z_(DR)特性 |
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| 引用本文： | 陈康,王庆安.用T-矩阵法分析降水粒子在微波段下的Z_(DR)特性[J].气象科学,2000,20(4). |
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| 作者姓名： | 陈康 王庆安 |
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| 作者单位： | 南京大学大气科学系!南京210093 |
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| 基金项目： | 国家自然科学资金!（49875007） |
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| 摘 要： | 本文采用Ｔ－矩阵方法从理论计算的角度分析了在Ｘ、Ｃ和Ｓ波段下不同轴比、大小和相态的扁椭球降水粒子的差反射率因子ＺＤＲ，对为三种波长的双线偏振雷达实际运用提出了更合理的解释，得到若干有用的结论。文中还对Ｔ－矩阵方法的准确性进行地评价。
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| 关 键 词： | T-矩阵法 差反射率因子 平均介电常数 降水谱分布 |
AN ANALYSING STUDY OF THE DIFFERENTIAL REFLECTIVITY OF THE PRECIPITATION PARTICLES BY USING T-MATRIX SOFTWARE |
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| Chen Kang Wang Qingan.AN ANALYSING STUDY OF THE DIFFERENTIAL REFLECTIVITY OF THE PRECIPITATION PARTICLES BY USING T-MATRIX SOFTWARE[J].Scientia Meteorologica Sinica,2000,20(4). |
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| Authors: | Chen Kang Wang Qingan |
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| Abstract: | In this paper the properties of differential reflectivity (ZDR ) of oblate spheroidal precipitation particles with various axial ratios, sizes and phases are analyzed by using accurate T-matrix software calculation. The ZDR of ice-air mixture with different bulk densities and ice-water mixture with different volume fraction of water are studied. Some conclusions of this study are useful to the applicantion of the dual linear polarization radar. The accuracy of the T-matrix software are evaluated in the article. |
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| Keywords: | T-matrix method Differential reflectivity Average dielectric constant Spectrum distribution of precipitation |
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