两种导风方法在台风路径分析中的应用比较研究  

Two methods for cloud motion vectors and its comparative applications in the analysis of typhoon track

作　　者：李峰[1,2,3] 王振会[1,2] 官莉[2] 河惠清[2] 

机构地区：[1]南京信息工程大学气象灾害省部共建教育部重点实验室,南京210044 [2]南京信息工程大学大气物理学院,南京210044 [3]山东省气候中心,济南250031

出　　处：《气象科学》2009年第3期330-334,共5页Journal of the Meteorological Sciences

基　　金：国家自然科学基金(40475018)

摘　　要：基于云导风使用的最大相关法(已经广泛应用)和TCFM法(傅立叶相位分析法和最大相关法相结合)两方法的原理,开发了利用FY-2C静止气象卫星30min间隔卫星云图资料获得云迹风的可视化导风实验系统。利用该系统处理2005年夏季麦莎、卡努、龙王等3个台风期间的卫星云图,对得到的云迹风进行台风路径反演分析。结果表明,TCFM导风方法得到的结果优于最大相关法。A cloud motion wind inferring system has been developed based on the principles of traditional maximum correlation and a recently-suggested TCFM （ Tracking cloud with Combined Fourier phase analysis and Maximum correlation） technique to deal with FY-2C satellite images for cloud motion vectors. Image series for typhoon ＂Matsa＂, ＂Khanun＂ and ＂Longwang＂ observed by FY-2C in 2005 have been processed with the system and the cloud motion wind fields obtained are used to determine the track of typhoon. It has been shown that the tracks based on the results from TCFM are more accurate than those from the maximum correlation.

关 键 词：台风路径分析 最大相关法 TCFM法 云迹风 

分 类 号：P458.124[天文地球—大气科学及气象学]