顾瑜,孙即霖,楚合涛

• 1:中国海洋大学海洋与大气学院
• 2:中国海洋大学物理海洋教育部重点实验室海洋大气相互作用与气候实验室
• 3:莱西市气象局

摘要(Abstract)：

利用常规气象观测资料、NCEP/NCAR再分析资料、FY-2E卫星和多普勒雷达等资料,对2016年6月23日江苏省阜宁县一次EF4级超强龙卷天气过程进行了分析。研究表明:(1)龙卷发生前,300hPa附近的冷平流和850hPa附近的暖平流增强了大气对流层垂直层结的不稳定性,700和850hPa低涡切变东移,地面气旋提供的海上水汽输送和天气尺度上升运动抬升触发作用,高低层风速存在强风切变提供有利于中小尺度风暴自组织系统加强等因素,构成了本次龙卷过程发生的环境条件。(2)造成本次龙卷的超级单体风暴持续近4h,具有典型的钩状回波,有持续强盛的气旋性涡旋存在。(3)造成本次强龙卷的超级单体具有深厚的中气旋,龙卷涡旋特征较强,龙卷发生在3D环流厚度及最大切变剧增的时候。

关键词(KeyWords)： 超强龙卷;环流背景;超级单体;中气旋;龙卷涡旋特征

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学重点基金项目(41430963);; 国家自然科学基金项目(41276012)资助~~

作者(Author): 顾瑜,孙即霖,楚合涛

DOI: 10.16441/j.cnki.hdxb.20170094

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