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俞樟孝, 吴仁广, 翟国庆, 等. 浙江冰雹天气与边界层辐合的关系[J]. 大气科学, 1985, 9(3): 268-275. DOI: 10.3878/j.issn.1006-9895.1985.03.07
引用本文: 俞樟孝, 吴仁广, 翟国庆, 等. 浙江冰雹天气与边界层辐合的关系[J]. 大气科学, 1985, 9(3): 268-275. DOI: 10.3878/j.issn.1006-9895.1985.03.07
Yu Zhangxiao, Wu Renguang, Zhai Guoqing, et al. The relationship between the boundary layer convergence and occurrence of hail weather in Zhejiang[J]. Chinese Journal of Atmospheric Sciences, 1985, 9(3): 268-275. DOI: 10.3878/j.issn.1006-9895.1985.03.07
Citation: Yu Zhangxiao, Wu Renguang, Zhai Guoqing, et al. The relationship between the boundary layer convergence and occurrence of hail weather in Zhejiang[J]. Chinese Journal of Atmospheric Sciences, 1985, 9(3): 268-275. DOI: 10.3878/j.issn.1006-9895.1985.03.07

浙江冰雹天气与边界层辐合的关系

The relationship between the boundary layer convergence and occurrence of hail weather in Zhejiang

  • 摘要: 通过七次冰雹天气过程的分析,发现浙江地区大范围降雹过程之前,对流层中下层并不一定有大尺度辐合和上升运动,而是与边界层辐合却有着十分密切的关系.降雹前,边界层中都有辐合线存在,与此相应,有较强的质量和水汽通量辐合.无辐合线,则无大范围的冰雹天气发生.冰雹区的水汽通量散度垂直分布有明显特点,水汽辐合多集中于边界层内,辐合最大值在950百帕附近,850百帕以上辐合很小,甚至是辐散.还发现边界层辐合的强度与冷锋位置有关.

     

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