Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Meteorological Monthly》 2010-03
Add to Favorite Get Latest Update

Mesoscale Observation and Simulation on 30 July 2005 Severe Convective Case in Shanghai

ZHANG Delin~1 MA Leiming~2 1 Qingpu Weather Office,Shanghai 201700 2 Shanghai Typhoon Institute,Shanghai 200030  
A severe convective case,occurring in Shanghai on 30 July 2005,is examined with the composite datasets from WSR-88D Doppler radar,automatic weather stations and mesoscale numerical model WRF. It is found that the occurrence of mesoscale convergence lines was mainly induced by the southward intrusion of weak cold front and the pre-existed local mesoscale baroclinic instability.The growth of these mesoscale boundary layer disturbances within the convergence lines was favored by the dynamical cooperation among high gradient of moisture,strong vertical wind shear,and energy front within the lower troposphere, resulting in the abrupt growth of the convection.Mechanisms for the simultaneous occurrence of hail,heavy rainfall and gale during this severe convection are also analyzed.
【Fund】: 上海市气象局2005年预报员研究专项(项目编号2005Y1);; 上海市科委重大项目(06DZ12011)联合资助
【CateGory Index】: P458.121.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved