| 利用卡尔曼滤波校准方法估算区域降水量 |
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| 引用本文： | 尹忠海,张沛源.利用卡尔曼滤波校准方法估算区域降水量[J].应用气象学报,2005,16(2):213-219. |
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| 作者姓名： | 尹忠海 张沛源 |
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| 作者单位： | 1.中国气象科学研究院, 北京 100081 |
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| 基金项目： | 国家计委项目“新一代天气雷达灾害性天气警报和短时预报系统”，国家自然科学基金面上项目“新一代天气雷达观测数据四维同化的物理基础研究”(40375006)资助。 |
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| 摘 要： | 该文根据卡尔曼滤波校准方法估算区域降水量的原理，利用“973”项目野外观测资料对2002年6月22日的一次降水过程进行了试验研究。结果表明:卡尔曼滤波校准方法能提高雷达定量估算区域降水量的精度，并能较好地反映雷达探测到的精细降水场结构；验证了随着观测次数的增加，卡尔曼滤波校准方法估算降水量的精度越来越高。
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| 关 键 词： | 卡尔曼滤波 降水测量 多普勒雷达 |
| 收稿时间： | 2003-10-23 |
Radar Rainfall Calibration by Using the Kalman Filter Method |
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| Yin Zhonghai Zhang Peiyuan.Radar Rainfall Calibration by Using the Kalman Filter Method[J].Quarterly Journal of Applied Meteorology,2005,16(2):213-219. |
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| Authors: | Yin Zhonghai Zhang Peiyuan |
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| Affiliation: | 1.Chinese Academy of Meteorological Sciences, Beijing 1000812.Department of Atmospheric Science, Peking University, Beijing 100871 |
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| Abstract: | The Kalman Filter calibration method was tested by "973" project (Research on the Formation Mechanism and Prediction Theory of Severe Synoptic Disasters in China) field data-a rainfall case on June 22,2002.The analysis of parameters impacting on the result which the Kalman Filter calibration method figures out is done. The result shows that the Kalman Filter calibration method can improve the accuracy of radar rainfall measurement well. With the increase of observing times, the value which the Kalman Filter calibration method figures out is more accurate. |
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| Keywords: | Kalman filter Rainfall measurement Doppler radar |
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