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中文摘要：
东方动人的 Meiyu-Baiu 正面的 mesoscale 旋涡(MBFMV ) 经常出现并且经常沿着他们的轨道引起重降雨事件。move-off-shore MBFMV 被选择提高我们这类旋涡的理解。摘要的分析显示 MBFMV 是中央的一种类型 -- 旋涡并且主要发生在更低的对流层。海岸线附近的短波马槽为 MBFMV 的形成，支撑，和排水量是高度有利的。涡度预算显示在 MBFMV 的底层，并且在 MBFMV 的高水平，集中是为积极涡度的增加的主导的因素，与对流活动联系的垂直交通是最重要的因素。水平交通是减少的主要因素积极涡度。陆地和海环境对 MBFMV 的进化关键。Meiyu-Baiu 前面(MBF ) 的特征对旋涡的变化也重要。
英文摘要：
The eastward-moving Meiyu-Baiu frontal mesoscale vortices （MBFMVs） appear frequently and often cause heavy rainfall events along their tracks. A move-off-shore MBFMV was selected to enhance our understanding of this type of vortex. Synoptic analyses indicate that the MBFMV is a type of meso-α vortex and mainly occurs in the lower troposphere. A short wave trough near the coastline is highly favorable for the for- mation, sustainment, and displacement of the MBFMV. Vorticity budgets indicate that at lower levels of the MBFMV, convergence is the dominant factor for the in- crease of positive vorticity, and at high levels of the MBFMV, the vertical transportation associated with convective activities is the most important factor. The hori- zontal transportation was the main factor decreasing the positive vorticity. The land and sea environments are crucial to the evolution of the MBFMV. The characteristics of the Meiyu-Baiu Front （MBF） are also vital to the variation of the vortex.
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