摘要
对2005年11月19～20日哈密暴雪天气分析表明,暴雪是萨彦岭低涡直接南压进哈密南部造成的。深厚的低值系统为暴雪产生提供强的辐合上升运动,低层风场辐合及中高层强西南气流为暴雪提供充足的水汽,而冷暖、干湿空气的水平、垂直交换,使大量不稳定能量得以释放。
The analysis of a unusual snowstorm on 19～20 November 2005 in Hami showed that the snowstorm was resulted from the Sayanling eddy come into south Hami.The deep eddy provided strong convergence and ascending,lower wind convergence,and middle-high layer strong southwest airflow supplys snowstorm plentiful vapor,meanwhile,the level and vertical exchange of the cold,warm,dry,wet air released a vast amount of unstable energy.
出处
《沙漠与绿洲气象》
2005年第z1期26-28,共3页
Desert and Oasis Meteorology
关键词
低涡
环流形势
物理量
诊断
eddy
circulation
physical quantity
diagnostic
