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利用相控阵及双偏振雷达对2016年6月3日华南一次强对流过程的分析
于明慧1, 刘黎平1, 吴翀1, 肖艳娇2
(1.中国气象科学研究院灾害天气国家重点实验室;2.中国气象局武汉暴雨研究所)
Analysis of a Strong Convective Process in South China on June 3, 2016 Using Phased-Array and Dual-polarization Radar
Yu Minghui1, Liu Liping1, Wu Chong1, Xiao Yanjiao2
(1.Chinese Academy of Meteorological Sciences,Beijing;2.Institute of heavy rain .CMA.WUHAN)
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投稿时间:2018-02-14    修订日期:2018-12-21
中文摘要: 本文结合X波段相控阵雷达(XPAR)和S波段双偏振天气雷达(SPOL)及地面和探空观测资料,分析了2016年6月3日发生在华南的一次超级单体中小尺度特征,结果表明: 1)SPOL的多普勒参量和双偏振参量可以观测到超级单体的强度、速度和相态分布,超级单体的入流和出流影响钩状回波的形成。2)XPAR可以获取时空分辨率远高于SPOL的观测资料,可以弥补SPOL仰角层严重不足的缺陷,观测到超级单体完整的垂直结构,可更精确的描述超级单体的短时演变。3)超级单体钩状回波附近给地面带来了降温、大风和强降水,超级单体经过地区均有明显降温和风区。研究结果证明相控阵雷达和双偏振雷达对认识对流单体中小尺度系统的发展演变有较大帮助。
Abstract:Based on the X-band phased-array Doppler radar and S-band Dual-polarization radar (SPOL) and conventional surface and upper-air data, we analyzed the characteristics of a strong convective process in South China on June 3, 2016. The results are summarized as follows. 1) The intensity, velocity and phase distribution of supercells can be observed by Doppler parameters and dual-polarization parameters of SPOL. The formation of hook echo is affected by the influx and outflow of supercells. 2) XPAR can obtain spatiotemporal resolution much higher than sobservation data of SPOL, which can make up for the serious shortage of Elevation layer. The complete vertical structure of super cell can be observed and the short-term evolution of super cell can be more accurately described. 3) Hypercubes near the hook echo brought to the ground cooling, strong winds and strong precipitation, the area of the supercells through had significant cooling and wind area. The results show that phased-array radar and dual-polarization radar are more helpful to understand the evolution of supercells.
文章编号:201802140093     中图分类号:    文献标志码:
基金项目:国家自然基金项目(41675023)
引用文本:
于明慧,刘黎平,吴翀,肖艳娇,0.[en_title][J].Meteor Mon,():-.
Yu Minghui,Liu Liping,Wu Chong,Xiao Yanjiao,0.Analysis of a Strong Convective Process in South China on June 3, 2016 Using Phased-Array and Dual-polarization Radar[J].Meteor Mon,():-.