云南地区强降水物理量场特征分析  

Analysis on the characteristics of physical quantity field of heavy precipitation in Yunnan

作　　者：刘磊[1] 闵颖[1] 尹丽云[1] LIU Lei;MIN Ying;YIN Li-yun(meteorological station of yunnan province,Yunnan Kunming 650034)

机构地区：[1]云南省气象台

出　　处：《云南地理环境研究》2019年第6期53-59,共7页Yunnan Geographic Environment Research

基　　金：云南省气象局预报员技术开发专项项目(YB201402)

摘　　要：对云南省2015~2016年的32个强降水过程进行研究,采用强降水发生时的T-logp数据进行分析,根据温湿廓线的两种分类,讨论各物理量场相关阈值的特征。结果表明:云南地区强降水天气的物理量阈值有特定的分布规律,以热力不稳定、湿度、零度层高度的特征值作为预报指标,可以有效提高强降水预报准确率。Based on the study of 32 strong precipitation processes in Yunnan Province from 2015 to 2016,the T-logp data from the occurrence of heavy precipitation was used to analyze and discuss the characteristics of the relevant thresholds of physical fields.The results show that:there is a specific distribution law for the physical quantity threshold of short-term heavy precipitation weather in Yunnan.Combining multiple physical quantities can be used as an effective way to improve the accuracy of short-term heavy precipitation forecast.

关 键 词：强降水 T-logp 温湿廓线 物理量场 云南 

分 类 号：P426.61[天文地球—大气科学及气象学]