摘要
本文根据雨滴谱和散射函数推导出了双线偏振雷达识别冰雹区的冰雹参量——H_(DR);利用降雹过程的雷达资料和地面降雹的实况报告,分析了冰雹云的雷达等高显示CAPPI的Z_(DR)分布规律,并分析了H_(DR)与地面降雹的关系。初步结果表明:双线偏振雷达可以更好地识别冰雹区。这一工作在降水物理研究、人工防雹作业指挥及灾情估计等方面均有实用价值。
The hail signal HDR for dual linear polarization radar has been introduced depending on the rain drop size distributions data and scattering functions for rain drops. Based on the radar data and hail reports on the ground, we have analysed the ZDR distribution rule in the CAPPI radar data, and the relations between HDR and the hail informations on the ground. The preliminary results have showed that hail detection with HDR is satisfactory. This work is applied valuable to cloud physics study and hail modification.
出处
《高原气象》
CSCD
北大核心
1993年第3期333-337,共5页
Plateau Meteorology
关键词
双线偏振雷达
冰雹云
识别
Dual linear polarization radar
Hail detection.
