2012年登陆我国热带气旋的气候特征分析  

Analysis of the climatic characteristics of tropical cyclones making landfalls in china in 2012

作　　者：张润宇[1] 李志强[1] 

机构地区：[1]国家海洋环境预报中心,北京100081

出　　处：《海洋预报》2015年第2期37-44,共8页Marine Forecasts

基　　金：国家海洋局海洋公益性行业科研专项(201005036)

摘　　要：利用1981—2012年热带气旋数据资料,统计分析了2012年登陆我国热带气旋的特征;并且利用美国国家环境预报中心(NCEP)再分析数据和美国国家海洋大气管理局(NOAA)的avhrr卫星数据,分析了其原因。结果表明,2012年登陆热带气旋登陆地点偏北是由当年夏季西北太平洋副热带高压(以下简称"副高")的脊线位置偏北,热带季风槽位置偏北等因素所造成的。登陆热带气旋强度偏强和北太平洋(30°N、160°—170°E)区域海温表现出很好的正相关关系,与东太平洋(20°N、120°W)区域海温呈现了负相关关系。A number of features of tropical cyclones which landed on China in 2012 by using the data of tropical cyclone for 1981—2012 are studied in this paper. Based on the reanalysis data from National Centers for Environmental Prediction（NCEP）, and AVHRR data from National Oceanic and Atmospheric Administration（NOAA）, the reason for these characteristics is briefly examined. According to research, the feature of landing location of them more northward is due to the location of the subtropical high ridge line and the tropical monsoon trough being much northerly. The intensity of tropical cyclones have a positive correlation with the SST of the North Pacific（30°N,160°E—170°E）, and have a negative correlation with the SST of the eastern Pacific（20°N,120°E）.

关 键 词：热带气旋 气候特征 副热带高压 热带季风槽 海温 

分 类 号：P444[天文地球—大气科学及气象学]