| 固原市强降水的多普勒雷达Z-R关系分析 |
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| 引用本文： | 范小明,张成军,丁国荣.固原市强降水的多普勒雷达Z-R关系分析[J].宁夏农林科技,2011,52(4):40-41,44. |
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| 作者姓名： | 范小明 张成军 丁国荣 |
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| 作者单位： | 1. 宁夏固原气象台,宁夏固原,756000
2. 宁夏泾源县气象局,宁夏泾源,756400 |
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| 基金项目： | 宁夏气象局"强降水和冰雹短时监测预报指标研究"(200609)项目 |
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| 摘 要： | 利用固原市新一代天气雷达观测到的2006年12次强降水的反射率因子和雨强关系,即Z-R关系,使用最优化处理法,分别对对流性和稳定性降水进行统计,得出当地参数A、b。实例分析表明,对流性和稳定性降水的回波强度有差异,在作降水量估计时应区别对待。
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| 关 键 词： | 新一代天气雷达 强降水 Z-R关系 |
Analysis of Doppler Radar Z-R Relationship in Sever Rainfall in Guyuan |
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| Institution: | FAN Xiao-ming et al(Guyuan Meteorological Bureau,Guyuan,Ningxia 756000) |
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| Abstract: | The relationship of the reflectivity factor（Z） and rainfall intensity（R） of twelve severe rainfall cases in 2006 were observed by the next generation weather radar in Guyuan,as well as Z-R relationship;convective precipitation and stable precipitation were calclulated respectively by the method of optimization and the least squares,derived parameter locally A and b.Meanwhile analyzing the different radar echo intensity of convective and stable rainfall in some cases,the radar rainfall estimates should be considered distinguished. |
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| Keywords: | Next generation weather radar Severe rainfall Z-R relationship |
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