中尺度系统与台风降水增幅的关系
投稿时间:1995-02-17  修订日期:1995-12-18  点此下载全文
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作者单位
励申申 南京气象学院气象学系, 南京 210044 
寿绍文 南京气象学院气象学系, 南京 210044 
崔波 南京气象学院气象学系, 南京 210044 
基金项目:国家八·五攻关项目85—906—07;国家自然科学基金49475252
中文摘要:利用1990年 SPECTRUM 试验加密观测资料,分析了9012(YANCY)台风降水增幅的成因。台风造成的区域降水64%为强降水率降水,其时间变化与台风位置的南北振荡有关。中-α尺度暴雨区与台风西侧的东北风急流以及台风倒槽相联系。中-β尺度暴雨区与地面强东风区、东风气流的扰动、中尺度辐合区、中尺度气旋、中尺度锋区和中尺度锋生区密切相关。
中文关键词:中尺度系统  台风  降水增幅
 
AMPLIFICATION OF TYPHOON RAINFALL RELATED TO MESOSCALE SYSTEMS
Abstract:The paper concerns the causes of enhanced rainfall from Typhoon 9012(YANCY)in terms of intense observations collected in the implementation of the 1990 SPECTRUM project. Results show that the regional intense precipitation made up 64% of the total with the rainfall duration changing versus the meridional oscillation of the storm’s position;meso-α-scale torrential rainfall region was associated with northeasterly jet on the west side and an inverted trough of the tempest;the meso-β-scale heavy rain sector bore close relation to a surface vigourous easterly area,easterly perturbation,a meso convergence region,a meso cyclone,a meso frontal zone and a meso frontogenesis region.
keywords:meso system  typhoon  rainfall amplification
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