| 摘要: |
| 为了提高山区复杂地形条件下局地强对流天气监测预警能力,有效减小天气雷达之间对降水目标物回波的测量误差,选取贵阳、毕节、遵义三部多普勒天气雷达同步观测体扫资料,以贵阳多普勒天气雷达站为基准,对比分析了强对流天气的雷达回波强度的变化特征。初步分析结果表明：贵阳与遵义、毕节雷达之间观测的回波强度具有一致性的波动特征,且存在较大的相关性；贵阳雷达观测的回波强度总体低于毕节、遵义雷达观测数据结果；雷达组合反射率因子拼图产品对贵州山区局地强对流天气监测预警的范围影响程度较小。 |
| 关键词: 多普勒天气雷达;同步观测;回波强度;对比分析 |
| DOI： |
| 投稿时间：2018-07-05修订日期：2018-09-11 |
| 基金项目:冰雹云跃增特性与响应时间相关性分析（国家自然科学基金，41365001） |
|
| Correlation Analysis on Radar Echo Iintensity of Strong Convective Weather |
| Zou Shuping,LI Bo,YANG Zhe,CAO Shui,LI Hao |
| (Guizhou Institute of Mountainous Climate and Environment;Guizhou Provincial Center of Meteorological Information Support;Guizhou Provincial center of Hail Prevention_ control and Technical Support;Weather Modification Office of Guizhou Province) |
| Abstract: |
| In order to improve the monitoring and early warning ability of local strong convective weather under complex terrain conditions in mountainous areas, and effectively reduce the measurement error of precipitation target echoes between weather radars, Guiyang Doppler Weather Radar Station is used as a benchmark. The radar echo intensity of strong convective weather was compared and analyzed by selecting the data of simultaneous observations of Guiyang, Bijie and Zunyi Doppler weather radar. The preliminary analysis results show that the echo intensity observed between Guiyang and Zunyi and Bijie radar has consistent fluctuation characteristics and has a large correlation. The echo intensity of Guiyang radar observation is generally lower than that of Bijie and Zunyi radar observation data. The influence of radar composite reflectivity factor jigsaw on monitoring and warning range of strong convective weather in mountainous area of Guizhou province is small. |
| Key words: Doppler weather radar;Synchronous observation;echo intensity; correlation analysis |
