江西科学2017，Vol.35Issue(2)：226-230,238,6.DOI:10.13990/j.issn1001-3679.2017.02.008
赣东一次冬季暴雨过程诊断分析
Diagnostic Analysis of a Winter Rainstorm inEastern of Jiangxi Province
摘要
Abstract
Based on automatic station observation data and conventional observation data,the causes and mesoscale characteristics of the winter rainstorm were analyzed in eastren of Jiangxi Province from November 25 to 26,2016.The results showed that the rainstorm process was that the high-altitude trough moved slowly,and the long-time detention lead to the continuous precipitation process caused by the warm air current and the cold air.However,it was closely related to the southward pressure of the middle and low level shear line,the divergence of the upper level and the convergence suction of the lower layer,the vapor transport of the jet stream,and the longer duration.In addition,the water vapor flux and water vapor flux divergence were obviously smaller during the winter rainstormr,but the water vapor intensity was relatively stronger in the winter.False equivalent temperature,K index was significantly smaller,the atmospheric stratification than the flood season to be much more stable,which was no significant convective weather.关键词
冬季暴雨/高空辐散/耦合作用/低空急流Key words
winter rainstorm/high-altitude divergence/coupling effect/low-level jet分类
天文与地球科学引用本文复制引用
董玲,郑振荣,刘杰..赣东一次冬季暴雨过程诊断分析[J].江西科学,2017,35(2):226-230,238,6.基金项目
2014年江西省抚州市气象局自筹课题"抚州市秋冬季区域性暴雨形势特性分析". （）
