2001~2015年台风多种表征尺度和台风强度变化关系的统计分析  

Statistical Analysis of the Relationship Between Various Characterization Scales and Typhoon Intensity Changes During 2001~2015

作　　者：齐文华 梁佳 祁萍 李菲[1,2,3] 马俊强 陈思宇 罗鹏斌 李娟 李宛彧[1,2,3] QI Wenhua;LIANG Jia;QI Ping;LI Fei;MA Junqiang;CHEN Siyu;LUO Pengbin;LI Juan;LI Wanyu(College of Atmospheric Sciences,Nanjing University of Information Science and Technology,Nanjing,Jiangsu 210044,China;Linxia Meteorological Bureau,Linxia,Gansu 731100,China;Kangle County Meteorological Bureau,Linxia,Gansu 731500,China)

机构地区：[1]南京信息工程大学大气科学学院,江苏南京210044 [2]临夏州气象局,甘肃临夏731100 [3]康乐县气象局,甘肃临夏731500

出　　处：《热带农业科学》2020年第6期77-83,共7页Chinese Journal of Tropical Agriculture

摘　　要：台风是一种发生在热带海洋上的具有暖中心结构的气旋性强烈涡旋,极易造成大风、暴雨等灾害性天气,过境时严重威胁航海安全。利用JTWC的资料,对2001-2015年的台风资料进行统计分析,研究此15年中台风4种表征尺度与台风强度变化的关系。结果表明,台风增强以TD和TS强度居多,且台风增强所用时间较长;台风减弱的样本中以TY强度居多,说明台风的减弱强度变化较大,迅速且所用时间较短。在台风表征尺度与强度变化的关系方面,重点分析RMW、R34,DR34和TCF 4种台风表征尺度与台风强度变化的关系。Typhoon is a kind of strong cyclonic vortex with a warm center structure that occurs in the tropical sea.It is ready to cause weather disasters,such as heavy storm and rainstorm,and threatens navigation safety.The relationship between the four metrics of the typhoon and the typhoon intensity changes in the past 15 years were analyzed based on the typhoon dataset from 2001 to 2015 from the JTWC data.The results showed that typhoon intensification was mostly based on tropical depression(TD)and tropical storm(TS)intensities and that TD and TS took a longer time to intensify into typhoon.The typhoon weakening samples were mostly based on typhoon(TY)intensity,which indicated that the weakening intensity of typhoon changed greatly,and very quickly.For the relationship between typhoon characterization scales and intensity changes,four metrics,RMW,R34,DR34,and TCF,were used to analyze the relationship between the typhoon characterization scales and the typhoon intensity changes.

关 键 词：台风 尺度 强度变化 

分 类 号：S165.25[农业科学—农业气象学]