| 双线偏振雷达雨区衰减订正问题的模拟计算与讨论 |
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| 引用本文： | 刘黎平,徐宝祥.双线偏振雷达雨区衰减订正问题的模拟计算与讨论[J].高原气象,1992,11(3):235-240. |
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| 作者姓名： | 刘黎平 徐宝祥 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所，中国科学院兰州高原大气物理研究所 甘肃省兰州市 730000，甘肃省兰州市 730000 |
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| 摘 要： |
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| 关 键 词： | 雷达 偏振 雨 微波频率 衰减 模拟 |
SIMULATION AND DISCUSSION OF CORRECTING MICROWAVE ATTENUATION WITHIN RAIN AREA FOR DUAL LINEAR POLARIZATION RADAR |
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| Liu Liping Xu Baoxiang.SIMULATION AND DISCUSSION OF CORRECTING MICROWAVE ATTENUATION WITHIN RAIN AREA FOR DUAL LINEAR POLARIZATION RADAR[J].Plateau Meteorology,1992,11(3):235-240. |
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| Authors: | Liu Liping Xu Baoxiang |
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| Abstract: | The critical problem in measuring rainfall rate and distinguishing the phase of hydrometeors by dual linear polarization radar is the data accuracy, and the microwave attenuation is very important to measuring error. In this paper, we have given the relations between the extinction coefficients KH, v and ZH, ZDR for different raindrop size distributions (DSD) at 5.6 cm wavelength. We have simulated and discussed the effects of variation of temperature, DSD , smoothing of data and radar's system errors on the results of correcting attenuation. The results show that the attenuation makes ZH, ZDR becoming less, if the measuring errors of ZH, ZDR is not large, and other elements have not more effects on correcting results. Attenuation correcting could improve the measuring accuracy significantly, but measuring errors of ZH, ZDR is very important for correcting problem. |
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| Keywords: | Microwave attenuation Variation of raindrop size distribution Smoothing of radar data |
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