锡林郭勒盟一次大雪天气分析

摘要

2010年1月3日08—20时苏尼特右旗、朱日和、正镶白旗、正蓝旗出现了大雪天气过程。这次大雪过程属槽涡型结构：发展的冷性低涡槽东移南压,其下游为较强的高压脊,锡林郭勒盟处在冷涡底部的偏西急流带中。地面河套气旋东移进入锡林郭勒盟地区,之后减弱成河套倒槽,大雪就出现在倒槽的顶部偏南的中心位置处。%There was a heavy snow in the town of suniteyouqi, zhurihe, zhengxiangbaiqi and zhenglanqi from 8 o＇clock to 20 o＇clock On January 3rd, 2010. The snow was a Groove-Vortex structure： developing cold Vortex pressure trouigh moving East-South, a strong Ridge as its lower, Xilin Gol League being at the bottom of cold vortex and west jet.. The ground loop cyclone moved east into Xilin Col League region, and weakened to a loop down. The snow fell on the top of the South Center position.