气象与环境学报Issue(3)：10-17,8.DOI:10.3969/j.issn.1673-503X.2014.03.002
台风“达维”不对称结构特征分析
Analysis of the asymmetric structure of typhoon Damrey
摘要
Abstract
Based on the surface intensive observed meteorological data,the TBB data from FY-2E satellite and the NCEP 1°×1°reanalysis data,the characteristics of the asymmetric structure of the typhoon Damrey(code 1210) and its forming reason were analyzed.The results indicate that the cloud system structure,precipitation falling area and upper and lower wind fields for the typhoon Damrey are all asymmetric after landfall.The heavy rainstorm mainly appears in the northern and northeastern sides of the center of typhoon Damrey.The evolution of the asym-metric structure could be found obviously by the FY-2 E water vapor images.The dark area located in the western side of typhoon cuts off the southwestern transfer of water vapor,which makes advective cloudsystem in the west-ern and southern sides of typhoon center weakened and disappeared,while water vapor plume from the southeast goes into typhoon circulation and provides water vapor and energy for typhoon.At the same time,strong upper di-vergence,weakly vertical wind shear and evident upward movement are all favorable for enhancement and mainte-nance of advective cloudsystem to the northeastern side of the typhoon Damrey,which could trigger torrential rain. Cold air brought by upper trough intrudes into inside of typhoon and destroys its warm-core structure,which makes typhoon Damrey disappear on the Bohai Sea.关键词
登陆台风/不对称结构/水汽图像/冷空气/θse场Key words
Landfalling typhoon/Asymmetric structure/Water vapor image/Cold air/θse field分类
天文与地球科学引用本文复制引用
史得道,易笑园,刘彬贤..台风“达维”不对称结构特征分析[J].气象与环境学报,2014,(3):10-17,8.基金项目
中国气象局预报员专项“登陆北上台风不对称结构特征及成因分析”（CMAYBY2013-005）和公益性行业科研专项“恶劣天气对渤海海事安全的影响及对策研究”（GYHY201006034）共同资助。 （）
