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淮河流域一次梅雨锋暴雨的中尺度动力特征分析

ISSN号：1004-4574
期刊名称：Journal of Natural Disasters
时间：2012
页码：126-135
分类：P458.121.1[天文地球—大气科学及气象学] V321.225[航空宇航科学与技术—人机与环境工程;航空宇航科学技术]
作者机构：[1]Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing 210044, China, [2]National Oceanic and Atmospheric Administration/National Environmental Satellite, Data, and Information Service/Center for Satellite Applications and Research, Camp Springs, Maryland, USA
相关基金：Acknowledgements. The authors thank Dr. W.-K. TAO at NASA/ GSFC for his cloud-resolving model and the two anonymous re- viewers for their constructive comments. This study was supported by the National Key Basic Research and Development Project of China under Grant 2011CB403405, the Chinese Special Scientific Research Project for Public Interest under Grant GYHY200806009, the National Natural Science Foundation of China under Grants 41075039 and 41175065, and the Priority Academic Program De- velopment of Jiangsu Higher Education Institutions （PAPD）.
相关项目：深对流卷云砧的云水来源和微物理特征的数值模拟及在气候模式中参数化的改进

关键词：垂直风切变, 夏季暴雨, 财政预算, 雨量分布, 水汽凝结, 建模, 计算, 强降雨, cloud-resolving model simulation, vertical wind shear, rainfall partitioning, surface rainfall budget

中文摘要：

这研究调查垂直的风的效果砍在对大规模强迫的奔流的降雨反应上为在从 38 2008年6月的南部的中国上的重降雨事件结合了的夏天前使用一双二维的解决云的模型敏感实验的降雨分离分析环境预言( NCEP )/的国家中心全球数据吸收系统( GDAS )数据。基于表面降雨预算划分分析的降雨显示垂直的风的排除砍从最大的贡献者总计降雨的贡献，它是降雨与本地大气的弄干联系了的减少，水蒸汽分叉，和水疗院流星损失/集中，通过降雨区域和减少的降雨的减小在降雨事件期间。垂直的风的移动砍通过降雨区域和提高的降雨的扩大的从降雨总计降雨的贡献与本地大气的弄干联系了的增加，水蒸汽集中，和 hydrometeor 损失 / 集中。垂直的风的消除砍提高重降雨并且扩展它的区域，而它减少中等降雨和它的区域。

英文摘要：

This study investigates the effects of vertical wind shear on the torrential rainfall response to the large-scale forcing using a rainfall separation analysis of a pair of two-dimensional cloud-resolving model sensitivity experiments for a pre-summer heavy rainfall event over southern China from 3-8 June 2008 coupled with Na- tional Centers for Environmental Prediction （NCEP）/ Global Data Assimilation System （GDAS） data. The rain- fall partitioning analysis based on the surface rainfall budget indicates that the exclusion of vertical wind shear decreases the contribution to total rainfall from the largest contributor, which is the rainfall associated with local atmospheric drying, water vapor divergence, and hydro- meteor loss/convergence, through the reduction of the rainfall area and reduced rainfall during the rainfall event. The removal of vertical wind shear increases the contri- bution to total rainfall from the rainfall associated with local atmospheric drying, water vapor convergence, and hydrometeor loss/convergence through the expansion of the rainfall area and enhanced rainfall. The elimination of vertical wind shear enhances heavy rainfall and expands its area, whereas it reduces moderate rainfall and its area.

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