二连浩特市一次强降水天气过程分析  

The Analysis and Summary of a Severe Precipitation Process in Erenhot

作　　者：刘丽萍 李蓉 韩峰林 Liu Liping;Li Rong;Han Fenglin(Erenhot Meteorological Bureau,Inner Mongolia Erenhot 011100;Hohhot Meteorological Bureau,Inner Mongolia Hohhot 010051;Xilin Gol Meteorological Bureau,Inner Mongolia Xilinhot 026000)

机构地区：[1]二连浩特市气象局,内蒙古二连浩特011100 [2]呼和浩特市气象局,内蒙古呼和浩特010051 [3]锡林郭勒盟气象局,内蒙古锡林浩特026000

出　　处：《内蒙古气象》2018年第6期19-22,共4页Meteorology Journal of Inner Mongolia

摘　　要：文章利用常规气象观测资料、天气分析图、FY-2C卫星云图资料,对2016年7月14-15日二连浩特地区出现的较强降水天气过程进行诊断分析。结果表明:两个阶段出现的降水是属于同一次冷空气活动的天气过程,是受蒙古冷涡和河套倒槽持续影响的结果。第一阶段出现的是持续稳定性降水,触发机制是低空槽和地面辐合线,有高低空急流配合,西南水汽通道维持时间较长;第二阶段出现的是短时强对流性降水,触发机制是干侵入,前期降水使本地具有不稳定能量,冷涡南压使低空东南急流带来渤海水汽的输送,造成下暖湿、上干冷的不稳定条件。using conventional meteorological observation,weather analysis map and FY-2Csatellite cloud data,analysis the strong precipitation process occurred in Erenhot city on 14-15July 2016.The results show that there are two stages of precipitation weather process which are the same cold air activities,and the process is the continuing impact of the Mongolia cold vortex and Hetao Trough.The first stage is the continued stability of precipitation,and the trigger mechanism is low trough and surface convergence line, with high and low level jet,the southwest water vapor channel to maintain a longer time;the second stage is the precipitation of short-term convective,and the trigger mechanism is the dry intrusion,because there is pre precipitation with unstable energy,the southeast jet with water vapor caused to table conditions by the warm,dry and cold conditions.

关 键 词：强降水 高空冷涡 河套倒槽 急流 

分 类 号：P458.121[天文地球—大气科学及气象学]