冷涡背景下天津夏季三次不同强度极端短时强降水物理量特征对比分析
靳振华, 卜清军, 黄安宁

Comparative analysis of physical quantity characteristic of three extreme short-term heavy rainfalls with different intensities under cold vortex background during summer in Tianjin
JIN Zhenhua, BU Qingjun, HUANG Anning
表1 主要物理量列表
Tab.1 Main physical quantity list
因子分类 物理量 单位
对流潜势因子 对流有效位能(Convective Available Potential Energy,CAPE) J·kg-1
抬升凝结高度(Lifted Condensation Level,LCL) km
湿层厚度(Humidity Layer Thickness,Hwet km
暖云层厚度(Warm Cloud Layer Thickness,Hwarm km
0~6 km垂直风切变(0~6 km Vertical Wind Shear,SHR6 m·s-1
K指数
强天气威胁指数(Severe Weather Threat Index,SWEAT)
动力因子 垂直速度(Vertical Velocity,w Pa·s-1
水汽因子 整层大气可降水量(Precipitable Water Vapor,PWV mm
热力因子 假相当位温(Pseudo Equivalent Potential Temperature,θse K
回波参数 组合反射率(Composite Reflectivity,CR) dBZ
回波顶高(Echo Top,ET) km
垂直累积液态水含量(Vertical Integrated Liquid Water Content,VIL) kg·m-2