CAJ | 학술논문

运用常规气象观测资料和欧洲数值预报图，对2010年1月19—22日从西北方向入侵的强冷空气引发大面积的大风降温天气过程进行分析。结果表明：此次寒潮主要是由贝加尔湖附近的横槽内聚积一股较强的冷空气（高空500hPa冷中心强度达-45℃、地面冷高压中心强度达1060．0hP）。西西伯利亚的阻塞高压与贝加尔湖高空冷槽共同作用，西北路冷空气不断向东南侵袭，乌兰察布市处于西风带控制，横槽沿西风带向东移动分裂为两股冷空气。阻塞高压前偏北冷空气不断东移南下，引发横槽转竖并向南加深。持续性降温导致强寒潮天气过程。
운용상규기상관측자료화구주수치예보도，대2010년1월19—22일종서북방향입침적강랭공기인발대면적적대풍강온천기과정진행분석。결과표명：차차한조주요시유패가이호부근적횡조내취적일고교강적랭공기（고공500hPa랭중심강도체-45℃、지면랭고압중심강도체1060．0hP）。서서백리아적조새고압여패가이호고공랭조공동작용，서북로랭공기불단향동남침습，오란찰포시처우서풍대공제，횡조연서풍대향동이동분렬위량고랭공기。조새고압전편북랭공기불단동이남하，인발횡조전수병향남가심。지속성강온도치강한조천기과정。
By using the meteorological observation data and the European numerical forecast map, the storm weather process on January 19 to 22, 2010, were analyzed for which was caused by the strong cold air from the northwest. The result showed that the strong cold air accumulated in the transverse slot near the Lake Baikal was the main reason of the cold wave (the strength of the high altitude 500 hPa central was -45℃, the strength of the surface cold high pressure center was 1060.0 hPa). For both of the influences of West Siberia blocking high pressure and the Lake Baikal high cold trough, the northwest cold air attacked to the southeast constantly. Be- cause Ulanqab City was controlled by westerlies, the transverse slot split into two shares of cold air during the process of moving east along the westerlies. The north cold air of blocking high pressure continued moving south, causing the transverse slot to vertical and deepened southward. Continuous cooling process led to a strong cold weather.