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Comprehensive analysis of impact of tropical cyclone on two heavy rains in Shaanxi in 2007
Author(s): 
Pages: 537-543
Year: Issue:  5
Journal: JOURNAL OF CHENGDU UNIVERSITY OF INFORMATION TECHNOLOGY

Keyword:  大暴雨陕西台风远距离影响风速剧增能量和水汽输送;
Abstract: 通过2007年陕西两次区域性大暴雨的分析发现,台风远距离的影响作用明显.在对流层中低层,台风西行发展和加强时,台风低压的东侧或东北侧的风场出现显著增强现象,为暴雨区输送大量能量和提供充沛的水汽.台风在海南附近时,其径向特征表现明显,大暴雨出现在秦岭以南;台风在台湾附近时,其纬向特征表现明显,大暴雨出现在秦岭以北.垂直运动分析表明,台风低压系统的存在、维持、发展和加强对副热带高压有一定的维持、加强作用,有利于强降水的形势能够稳定和维持.
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