摘要
利用形势场、地面图和物理量场等资料对2015年7月13日青海省门源县冰雹天气进行诊断分析,用雷达对作业前后冰雹云的特征量分析来判断人工防雹作业的效果。结果表明:此次门源县的冰雹发生在高温、高湿及强的垂直风切变的环境下;闪电最大频次出现在降雹时间段内,正好处于强回波发展旺盛的阶段,负闪明显多于正闪;炮击雹云后雷达回波顶高下降,回波强度减弱,垂直液态水含量(VIL)45 kg/m^2范围逐渐变小。
A local hail process on July 13, 2015 in Menyuan of Qinghai was diagnosed according to theatmospheric circulation situation, surface chart and physical elements data etc. The effect of artificial hailsuppression was quantitatively analyzed based on the characteristics of hail cloud before and after shelling by aradar. The results showed that： the hail weather happened under high temperature, high humidity and strongvertical wind shearing situation in Menyuan; the highest rate of lightning appeared during hailing, where astrong echo was in a strong developing level, negative lightning was obviously more than positive lightning;radar echo top height declined after shelling hail clouds, echo strength reduced, and liquid water content（VIL）45 kg/m2 range became smaller.
作者
林春英
马学谦
杨青军
张博越
张芳
Lin Chunying MaXueqian YangQingjun ZhangBoyue ZhangFang(Qinghai Weather Modification Office, Xining 810001 Qinghai Meteorological Information Center Qinghai Meteorological enter, Xining 810001)
出处
《中国农学通报》
2017年第6期144-149,共6页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金地区科学基金项目(41665008)
国家留学基金委员会西部地区人才培养特别计划共同资助
关键词
冰雹
闪电
回波强度
hail
lightning
echo intensity
