摘要
利用MICAPS资料和多普勒天气雷达、卫星资料分析了1614号台风"莫兰蒂"和1617号台风"鲇鱼"引发泰顺特大暴雨过程。将环流形势、天气形势、云图结构特征以及物理量场特征进行对比分析。结果表明,"莫兰蒂"的过程特点是雨强较强、降水集中,"鲇鱼"的过程特点是雨强较小、降水均匀、降水时间长;2台风都具有强大的东南风急流,为其提供了充足的水汽和能量;"莫兰蒂"云系结构紧密,且直接登陆大陆以及螺旋云带的列车效应是产生特大暴雨的重要原因;"鲇鱼"云系结构松散,但南下的弱冷空气渗透流入,导致辐合增强,是造成其影响范围广、降水时间长的主要原因;垂直速度大值区的维持时间与强降水时间相一致。
The heavy rainstorm caused by two typhoon"Meranti"and"Megi"was analyzed by MICAPS materials,Doppler weather radar and satellite data.The circulation feature,weather feature,could maps structure feature and physical quantity field were comparative analyzed.The results showed that the typhoon Meranti has strong raininess and precipitation intensity,the typhoon Megi has weak raininess,the well-distributed precipitation and longer precipitation time.Tow typhoons have strong southeast jet and provide rich energy and moisture.The typhoon Meranti has tight could system structure when landing and its spiral cloud band caused heavy rainstorm.The typhoon Megi has loose could system structure,the weak cold front down to south has permeated,it has larger influence areas and longer precipitation time.The maintenance time and precipitation time are same of Large vertical velocity region.
作者
余霖枫
姜建丰
宋珊珊
YU Linfeng;JIANG Jianfeng;SONG Shanshan(Meteorological Bureau in Taishun County,Wenzhou,Zhejiang 325500;Meteorological Bureau in Pingyang County,Wenzhou,Zhejiang 325400)
出处
《热带农业工程》
2020年第4期116-120,共5页
Tropical Agricultural Engineering
关键词
台风暴雨
短时强降水
对比分析
东南风急流
typhoon rainstorm
short-term heavy rainfall
comparative analysis
southeast jet
