摘要
利用广西2009―2010年3―5月降雹样本资料和新一代天气雷达垂直累积液态含水量(VIL)产品,统计分析广西冰雹云VIL变化特征,结果显示:广西冰雹云的VIL整体呈现明显的阶段性变化特征,识别指标为VIL≥43kg/m2,降雹前VIL出现明显的跃增,一个体扫时间VIL跃增值≥5kg/m2。冰雹云VIL值越大则产生的降雹直径也可能越大,VIL产品在人工防雹作业冰雹云识别、作业时机、作业用弹量等方面均有较好的指导作用。
By using the Vertically Integrated Liquid water content（VIL） products and hailstorm sample data of 2009-2010 in Guangxi,variation characteristics of VIL in the cases of hailstorm are analyzed.The results show that the VIL of hailstorm in Guangxi is characterized by its obvious gradation variation,the index of identification is VIL≥43 kg·m-2.Before the hail shooting there is an abrupt increase of VIL,in 1 datum time VIL abrupt increase value≥5 kg·m-2.The higher the hailstorm＇s VIL value is,the bigger the diameter of the hail may be.It is considered that VIL products would have fairly good directive function in artificial hail suppression such as hail cloud recognition,operation time,and bomb amount needed for the operation.
出处
《热带地理》
北大核心
2012年第1期50-53,93,共5页
Tropical Geography
基金
课题来源:冰雹云综合预警识别技术研究
关键词
垂直累计液态含水量(VIL)
冰雹云
VIL变化特征
人工防雹
广西
Vertically Integrated Liquid Water Content（VIL）
Hailstorm
VIL variation characteristic
artificial hail suppression
Guangxi
