摘要
2013年10月6—7日台风"菲特"和台风"丹娜丝"影响中国东部,造成区域性大暴雨。利用客观分离方法及数值模拟两种方法辨别两个台风在不同阶段各自的作用。结果表明,对于10月6日区域性大暴雨,客观分离结果和数值模拟结果一致,被识别为主要由台风"菲特"造成的降水。对于10月7日江苏东南部、浙江东北部的区域性大暴雨,客观分离结果表明,两个台风都起到了关键性作用;模式模拟结果表明,强降水与台风"菲特"有直接关联,而与台风"丹娜丝"作用不大。锋生函数也表明,冷空气对强降水也起到了一定的作用。
During 6 to 7 October 2013, typhoon ＂Fitow＂ and typhoon ＂Danas＂ affected on the region of East China, causing regional heavy rainfall. By using objective separation and numerical simulation methods, we distinguished the roles of each typhoon at their different stages. Results showed that regional heavy rainfall on 6 October, for which objective separation and numerical simulation agree with each other, was caused primarily by typhoon ＂Fitow＂. For regional heavy rainfall in northeastern Zhejiang province and southeastern Jiangsu province on 7 October, objective separation results showed that the two typhoons have played a critical role. However, simulation results indicated that heavy rainfall was directly related to typhoon ＂Fitow＂, while the role of typhoon ＂Danas＂ was very limited. Frontogenesis function showed that cold air had also played a role in the heavy rainfall.
出处
《暴雨灾害》
2016年第1期39-44,共6页
Torrential Rain and Disasters
基金
中国气象局预报员专项(CMAYBY 2014-025)
常州市气象局科研基金项目(ST201009)
关键词
台风
暴雨
客观分离法
锋生
typhoons
heavy Rain
objective synoptic analysis technique
frontogenesis
