2016年11月10-12日暴雪过程总结  

Summary of snowstorm process on November 10-12,2016

作　　者：王晓雪[1] 李有缘 王德毅 WANG Xiao-xue;LI You-yuan;WANG De-yi2(Meteorological observatory of Heilongjiang province,Heilongjiang Harbin 150030;National climate center,Beijing 100081)

机构地区：[1]黑龙江省气象台,黑龙江哈尔滨150030 [2]国家气候中心,北京100081

出　　处：《黑龙江气象》2017年第4期1-2,共2页Heilongjiang Meteorology

摘　　要：2016年11月10-12日黑龙江省出现了一次较大范围暴雪天气过程。本文利用常规资料对环流背景进行了分析,以哈尔滨单站为例详细讨论了暴雪发生的物理机制。结果表明:本次暴雪过程的主要影响系统是高空蒙古大槽和地面低压共同作用,强烈上升的饱和湿区、低层强辐合中高层强辐散的这种配置,丰沛的水汽条件以及低层高温高湿的不稳定能量与中层向下渗透的冷空气结合的热力条件,为暴雪的发生提供了有利条件。A large-scale snowstorm occurred in Heilongjiang province between Nov.10-12.In this paper,the circulation background is analyzed by conventional data,taking a single station in Harbin as an example,the physical mechanism of snowstorm is discussed in detail.The results showed that,the main influence system of the snowstorm process is the interaction of high altitude Mongolia trough and ground low pressure,the configuration of the strong saturated moist zone and the strong convergence of the middle and upper layers in the lower layer strongly converge,the abundant water vapor conditions and Thermodynamic conditions for the combination of unstable energy with high temperature and humidity from the lower layer and the cold air permeating through the middle layer,they provided favorable conditions for the occurrence of snowstorm.

关 键 词：暴雪 低层辐合 上升运动 

分 类 号：P458[天文地球—大气科学及气象学]