1604号登陆台风“妮妲”的特点及其成因分析  

Characteristics of Landfalling Typhoon Nida(1604) and Analysis of Its Causation

作　　者：王娟怀[1] 李梓贤 唐力生[1] 杨守懋 FANG Juan-huai;LI Zi-xian;TANG Li-sheng;YANG Shou-mao(Climate Center of Guangdong Province,Guangzhou,510000;Meteorological Bureau of Baiyun District,Guangzhou,510000)

机构地区：[1]广东省气候中心,广东广州510000 [2]广州市白云区气象局,广东广州510000

出　　处：《广东气象》2018年第5期10-14,共5页Guangdong Meteorology

基　　金：广东省气候中心业务项目(QH201602)

摘　　要：利用常规观测资料、NCEP 2. 5°×2. 5°逐日以及逐6 h再分析资料,对1604号台风"妮妲"登陆广东前后的一些特点及其成因进行初步分析。结果表明:该台风具有"登陆强度强、近海发展快、影响范围广"等特点;西太平洋副高强且位置稳定,低层辐合、高层辐散的"抽吸"作用,南海北部的异常偏暖,南海弱垂直风切变等因素的共同作用,为1604号台风"妮妲"的近海发展提供了热力和动力条件。Using conventional observations and NCEP 2.5°×2.5° daily and 6-hourly reanalysis, we made a preliminary study of the characteristics of typhoon Nida （1604） around its landfall in Guangdong and its causation. The result is shown as follows. This typhoon was characterized by high intensity at landfall, rapid enhancement over offshore water and extensive scope of influence. A subtropical high was strong and changed little in position, there was sucking effect due to low-level convergence versus high-level divergence, the northern part of South China Sea was anomalously warm, and there was weak vertical wind shear over the sea, supplying thermodynamic and dynamic conditions for the offshore development of Nida （1604）.

关 键 词：天气学 台风“妮妲” 台风特点 广东 

分 类 号：P44[天文地球—大气科学及气象学]