CAJ | 학술논문

利用2015年2月19日到20日太原气象观测站的降雪量资料及高时空分辨率的T6390场预报资料，对太原市阳曲县暴雪天气过程进行分析。结果表明：阳曲县此次暴雪过程具有降雪时间较长、降雪较均匀的特点，500 hPa西风浅槽及南支槽共同作用、700 hPa和850 hPa切变线、700 hPa西南急流、地面高压后部偏南气流的共同作用是产生阳曲地区此次暴雪天气过程的环流背景条件；此次暴雪天气发生在较强的能量锋区以及高湿区和水汽通量辐合区内；暴雪气发生时，在河套地区上空形成一个由低层到高层的动力性的纬向垂直环流圈，为冷暖气流共同作用提供了持续不断的动力条件。
이용2015년2월19일도20일태원기상관측참적강설량자료급고시공분변솔적T6390장예보자료，대태원시양곡현폭설천기과정진행분석。결과표명：양곡현차차폭설과정구유강설시간교장、강설교균균적특점，500 hPa서풍천조급남지조공동작용、700 hPa화850 hPa절변선、700 hPa서남급류、지면고압후부편남기류적공동작용시산생양곡지구차차폭설천기과정적배류배경조건；차차폭설천기발생재교강적능량봉구이급고습구화수기통량복합구내；폭설기발생시，재하투지구상공형성일개유저층도고층적동력성적위향수직배류권，위랭난기류공동작용제공료지속불단적동력조건。
Using the snowfall data and high space-time resolution T639 0 field prediction data provided by Taiyuan Meteorological Observatory from February 19 to 20 of 2015,this paper analyzes the blizzard process in Yangqu County of Taiyuan City, the results of which show that this blizzard process in Yangqu County had the features of that the snowing time is longer and the snowing is more uniform, and the joint action of 500 hPa west wind shallow slot and southern slot,and the joint action of 700 hPa and 850 hPa shear line,700 hPa southwest rush-flow and south airflow at the rear part of ground high pressure were this blizzard weather process'circulation background conditions; this blizzard weather process occurred in strong energy frontal zon, high wet area and moisture flux convergence zone;and in the course of the blizzard weather, there was a zonal dynamical circumfluence circle which formed from lower to higher over the Hetao area, offering continual dynamical condition for the combined action of cold airflow and warm airflow.