| Effects of Vertical Wind Shear on the Pre-Summer Heavy Rainfall Budget:A Cloud-Resolving Modeling Study |
| |
| 作者姓名： | SHEN Xin-Yong QING Tao HUANG Wen-Yan LI Xiao-Fan |
| |
| 作者单位： | Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science and Technology;National Oceanic and Atmospheric Administration/National Environmental Satellite,Data,and Information Service/Center for Satellite Applications and Research,Camp Springs,Maryland,USA |
| |
| 基金项目： | 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;the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| |
| 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 National Centers for Environmental Prediction(NCEP)/Global Data Assimilation System(GDAS) data.The rainfall 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 hydrometeor loss/convergence,through the reduction of the rainfall area and reduced rainfall during the rainfall event.The removal of vertical wind shear increases the contribution 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.
|
| 关 键 词： | cloud-resolving model simulation vertical wind shear rainfall partitioning surface rainfall budget |
Effects of Vertical Wind Shear on the Pre-Summer Heavy Rainfall Budget:A Cloud-Resolving Modeling Study |
| |
| SHEN Xin-Yong,QING Tao,HUANG Wen-Yan,LI Xiao-Fan.Effects of Vertical Wind Shear on the Pre-Summer Heavy Rainfall Budget:A Cloud-Resolving Modeling Study[J].Atmospheric and Oceanic Science Letters,2013,6(1):44-51. |
| |
| Authors: | ,
SHEN Xin-Yong
,
QING Tao
,
HUANG Wen-Yan
,
LI Xiao-Fan |
| |
| Institution: | 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 |
| |
| Abstract: | 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 National Centers for Environmental Prediction(NCEP)/Global Data Assimilation System(GDAS) data.The rainfall 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 hydrometeor loss/convergence,through the reduction of the rainfall area and reduced rainfall during the rainfall event.The removal of vertical wind shear increases the contribution 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. |
| |
| Keywords: | cloud-resolving model simulation vertical wind shear rainfall partitioning surface rainfall budget |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《大气和海洋科学快报》浏览原始摘要信息 |
| 点击此处可从《大气和海洋科学快报》下载免费的PDF全文 |
