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THE MECHANISM OF A SAND STORM OVER CHINA IN MARCH 2002
Author(s): 
Pages: 1-9
Year: Issue:  1
Journal: JOURNAL OF APPLIED METEOROLOGICAL SCIENCE

Keyword:  沙尘暴模式边界层湍流斜压转换;
Abstract: 使用沙尘暴预报模式的输出资料,对2002年3月19~21日的一次特强沙尘暴过程作动力诊断分析.结果表明,该次沙尘暴由蒙古气旋后部冷锋锋生产生的偏西北大风引发.近地面风速的垂直切变和地面热通量的加大,都可使边界层湍流加强扬起地面沙尘.地面锋区附近风场的强水平切变,锋面垂直环流及锋后斜压转换的作用,将地面卷起的沙尘带到高空,引发强沙尘暴.
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