摘要
利用马鞍山C波段多普勒雷达对2005年6月15日凌晨发生在安徽省江淮地区的冰雹云进行追踪观测,应用探测获得的资料结合大气层结热力结构,分析了产生冰雹云的大气稳定度和对流不稳定能量(CAPE)。雷达回波分析表明,这次冰雹云在平面位置显示(PPI)上具有入流缺口和辉斑回波(TBSS),在垂直剖面上具有强大的回波悬垂和有界弱回波区的回波墙等特征。对气象产品如风暴跟踪信息(STI)、垂直累积液态含水量(VIL)和中气旋的分析,证实了这次降雹的最大直径为50 mm左右。
The tracing observation of hail clouds around the Changjiang River and Huaihe Valley was conducted by using CINRAD/CC radar at Maanshan. The atmosphere stability and convection available potential energy (CAPE) of the bail clouds are analyzed by means of CINRAD/CC data and the atmosphere stratification thermodynamic structure data. The results indicste that in the hail event there existed in-flow gap and three-body scatter spike (TBSS) on the PPI, strong echo pendency and limitary weak echo region (WER) on the vertical crosssection. The analysis of meteorological data such as storm tracking information (STI), vertical integrated liquid (VIL), and mesocyclones verifys that the maximum diameter of the hailstones is about 50 mm.
出处
《气象科技》
2007年第2期204-208,309,共6页
Meteorological Science and Technology
基金
安徽省"十一五"科技攻关项目(06013140B)
中国气象局新技术推广项目(CMATG2006 M02)的资助