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贵州春季一次强冰雹天气过程双线偏振雷达观测分析
曾勇
0
(贵州省人工影响天气办公室)
摘要:
为探索X波段双线偏振雷达对冰雹云识别效果,对发生在贵州春季一次强冰雹天气过程偏振雷达降水识别进行分析,结果表明:双线偏振雷达能够从水平反射率因子识别出冰雹云,在有效探测范围内能够获取冰雹粒子真实回波信息。偏振雷达的降水类型识别能够正确识别冰雹,同时识别到的冰雹落区与实际降雹落区基本一致。在人工防雹作业时,可以利用双线偏振雷达识别冰雹云,获得科学作业时机和作业部位。
关键词:  冰雹云  双线偏振雷达  偏振参量  降水粒子识别
DOI:
投稿时间:2019-03-16修订日期:2019-03-16
基金项目:中国气象局云雾物理环境重点实验室开放课题(2018Z01602)、贵州省人工影响天气办公室科研项目(GZRY201829)
Observation and Analysis of a Heavy Hail Weather Process in Guizhou Spring by Dual Linear Polarization Radar
()
Abstract:
In order to explore the recognition effect of X-band dual-linear polarization radar on Hail clouds, the polarization radar precipitation identification during a severe hail weather process in spring in Guizhou Province was analyzed. The results show that the dual-linear polarization radar can recognize hail clouds from horizontal reflectance factor and obtain the real echo information of hail particles within the effective detection range. The recognition of precipitation type by polarization radar can correctly identify hail, and the hail falling area identified by polarization radar is basically consistent with the actual hail falling area. In the artificial hail suppression operation, the hail cloud can be identified by using dual linear polarization radar, and the timing and location of the scientific operation can be obtained.
Key words:  Hail cloud  Dual linear polarization radar  Polarization parameter  Precipitation particle recognition

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