成都地区4～6月低涡云系降水的雨滴谱分析  

ANALYSIS OF KAINDROP SPECTRUM OF LOW VORTEX OF CLOUD SYSTEM IN CHENGDU DURING THE PERIOD OF APRIL TO JUNE OF 1990

作　　者：卿清涛[1] 刘兴荣[1] 李相会 陈国学[1] 晋玉田[1] 

机构地区：[1]四川省气象科研所

出　　处：《成都气象学院学报》1994年第2期24-29,共6页

基　　金：国家气象局气象科学基金资助课题

摘　　要：以１９９０年４～６月在成都采集的１１３份雨滴谱资料为基础，着重分析了低涡云系和槽后西北气流影响本地降水的雨滴谱浓度、雨水含水量、雷达反射率因子、雨滴谱型及其变化规律。分析发现，雨滴谱浓度大，含水量小，平均谱合乎Ｍ－Ｐ分布。还讨论了滴谱浓度、雨水含水量、雷达反射率因子与雨强的关系。Based on the 113 sets of raindrop spectrum data collected in Chengdu during the peried of April toJune of 1990，the density of raindrop（N）、the ram-water content(W)、the radar reflectivity factor（Z）、the raindrop spectrum pattern and its law of chan8es are analyzed, Finally the relationshipsbetween Z and rainfall intensity（I）、between N and I、and between W and I are discussedrespectively.

关 键 词：低涡云系 雷达反射率因子 雨滴谱 降水 

分 类 号：P458.121[天文地球—大气科学及气象学] P426.51