单多普勒雷达径向风场反演散度场的一种新方法

臧增亮; 吴海燕; 黄泓

单多普勒雷达径向风场反演散度场的一种新方法

1.
中国科学院大气物理研究所LASG实验室, 北京 100029;解放军理工大学气象学院, 江苏南京 211101
2.
解放军理工大学气象学院, 江苏南京 211101

基金项目: 中国科学院大气物理研究所LASG实验室开放课题;国家自然科学基金(40505023)共同资助

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出版历程
- 收稿日期: 2005-12-19
- 修回日期: 2006-07-07

A NEW METHOD OF THE RETRIEVAL OF HORIZONTAL DIVERGENCE FIELD WITH A SINGLE DOPPLER RADAR RADIAL VELOCITY DATA

1.
Institute of Atmospheric Physcis, Chinese Academy of Sciences, LASG, Beijing 100029, China;Meteorological College, PLA, University of Science and Technology, Nanjing 211101, China
2.
Meteorological College, PLA, University of Science and Technology, Nanjing 211101, China

摘要

摘要: 为利用多普勒雷达的径向风速获得实际风场的信息,提出了一种由单多普勒雷达径向风场反演水平散度场的新方法。在二维平面内,以某个探测点为中心,建立一个分析面,在假设风场呈线性变化的前提下,直接由径向风速推导出此探测点的散度值。并对几种典型理想风场的散度场进行了反演试验,试验结果表明,反演的散度场与分析的散度场比较一致。并对反演场与分析场之间的差别进行了讨论。
- 单多普勒雷达 /
- 径向风场 /
- 散度场反演
Abstract: A new method of the retrieval of horizontal divergence field with a single Doppler radar radial velocitydata is presented. In a two-dimensional plane, an analytic plane centered on a certain point is established. Under the precondition that the wind field is changed linearly, the divergence at this point could be derived from theradial velocity directly. The experiments about the divergence fields of several typical and ideal wind fields werealso done to verify this method. The results showed that the retrieved divergence fields were consistent with the analytic fields comparatively. The differences between the retrieval fields and the analytic fields were also discussed.
- single Doppler radar /
- radial velocity field /
- retrieval of divergence field

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参考文献(14)

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