2009年呼伦贝尔市一次寒潮大风天气分析

利用地面、高空等常规气象观测资料,对2009年5月28日发生在呼伦贝尔市一次全市性寒潮大风天气过程进行总结分析。结果表明:贝加尔湖冷涡和蒙古气旋及冷锋是造成这次寒潮大风天气的主导系统;高空强锋区及低层强温度平流是寒潮天气爆发的关键;高低空急流为大风天气提供能量;气压梯度大和冷锋后较大的3h正变压与大风天气有很好的相关性。

Analysis on the Cold Wave and Gale Weather in Hulunbuir City in May 28, 2009

Using the conventional weather observation data of surface and high altitude, Lhe cold wave and gale weather process was analyzed in Hulun Buir city in May 28, 2009. The results showed that Lake Baikal cold vortex, Mongolia cyclone and cold front was the dominant system of the synoptic process, the key factor of cold waver weather exploding were strong frontal zone of upper air and powerful temperature advection of low layer, upper and lower level jet stream provided energy for the cold waver weather, the gale weather has good correlation with the high pressure gradient and the biggish air pressure, variation in three hours.