摘要
使用河南省气象台站1982~1997 年4~8 月地面报表和同时期雷达回波资料统计分析了40 次区域性冰雹过程(相邻3 站以上降雹)的天气特征、回波参数特征,找出了相关性较好的各种预报判据和多普勒天气雷达强度场、速度场上的图像特征,为制作冰雹的短时预报、雷达监测及人工消雹工作提供科学的依据。
Based on April~August surface weather observation data from 1982 to 1997 in Henan province and corresponding radar echo data,the characters of weather and rader echo parameters in 40 times regional hail process (neighboring stations≥3) were researched statistically.Some forecast criterions and image features of Doppler radar intensity field and velocity field with better correlation were obtained.These achievements provide scientific basis for making short term forecast,radar monitoring and hail suppression operation.
出处
《气象》
CSCD
北大核心
1999年第9期36-40,共5页
Meteorological Monthly
关键词
冰雹
大尺度形势
中尺度特征
物理判据
人工消雹
hail large scale pattern mesoscale feature physical criterion radar echo parameter artificial hail suppression