雷达VIL在局地强对流天气应用中应注意的几个问题  

Several Issues on Radar VIL Application to Analysis of Local Severe Convective Weather

作　　者：刘治国[1] 王锡稳[1] 冀兰芝[1] 王勇[1] 张旭东 

机构地区：[1]兰州中心气象台甘肃省干旱气候变化与减灾重点实验室,甘肃兰州730020 [2]兰州区域气候中心,甘肃兰州730020

出　　处：《干旱气象》2006年第4期40-44,共5页Journal of Arid Meteorology

基　　金：甘肃省自然科学基金暨中青年科技基金项目"甘肃省山洪地质灾害气象预报预警系统研究"(3ZSO41-A25-012);甘肃省气象局青年科技创新基金"VIL在冰雹预报中的应用研究"共同资助

摘　　要：结合兰州新一代天气雷达的使用情况,介绍了其物理量产品中垂直积分液态含水量(Verti-cally Integrated L iqu id W ater Content,)的理论计算模式,从雷达观测距离对VIL计算的影响、VIL理论模式中的反射率强度和探测高度对VIL计算的影响及VIL在强对流天气识别中受季节变化的影响3方面提出了思考,以期为今后应用VIL识别强对流天气提供参考。Based on the application of Lanzhou Doppler radar products, the theory pattern of vertically integrated liquid water content （VIL） which is one of radar physical quantity products was introduced in this article. Several issues was brought forward from the influ- ence of radar detecting range and height,reflectivity intensity on the calculation of VIL, as well as VIL changed with season variation, so as to supply some references to distinguish severe convective weather based on VIL.

关 键 词：VIL 理论模式 观测距离 误差讨论 

分 类 号：TN959.4[电子电信—信号与信息处理]