基于卫星资料对“海燕”台风影响海南岛风雨分布的分析  

Influence of “Haiyan” Typhoon on the Wind and Rain Distribution in Hainan Island based on Satellite Data

作　　者：吴俞[1] 李静[2] 杨仁勇[1] 

机构地区：[1]海南省气象台,海南海口570203 [2]国家海洋环境预报中心,北京100081

出　　处：《热带农业科学》2015年第5期95-101,共7页Chinese Journal of Tropical Agriculture

基　　金：中国气象局预报员专项;国家行业专项(No.201406006)

摘　　要：基于NOAA极轨卫星反演资料,同时结合GFS模式分析资料和海南岛乡镇自动站资料,综合分析超强台风"海燕"靠近海南岛南部近海时的结构变化特征及其对海南岛带来的风雨影响。得到的高分辨率卫星红外云图清晰地反演了"海燕"内部对流结构呈不对称分布,海南岛的降水分布与"海燕"内螺旋雨带的走向密不可分,而海南岛的地形分布及上空的大气环境又为螺旋雨带内小尺度对流的发展、维持提供有利的条件;微波散射计反演的10 m风场表明,"海燕"经过海南岛南部近海时,风场分布也呈明显的不对称,大风区主要位于台风中心的东北方位,不同级别风圈的分布直接决定着海南岛的大风分布。In this paper, based on the data of NOAA polar orbiting satellite retrieval, combining the GFS model analysis of influence of wind and rain data and Hainan Island Township automatic station comprehensive analysis of the data of the ultra strong typhoon ＂Haiyan＆quot;near the Hainan Island southern coastal area of the structure and variation of the Hainan Island bring. To obtain high resolution satellite infrared cloud image clearly reflects the ＆quot;Haiyan＆quot; internal convection structure distribution asymmetry, towards the rainfall distribution of Hainan Island and＆quot;Haiyan＆quot; inner spiral rainbands are inseparable, and the atmospheric environment and the topographic distribution over Hainan Island and small scale convection in the development and maintenance of spiral rain bands provide favorable conditions;the 10m wind field microwave scatterometer inversion that ＆quot;petrel＆quot; through southern Hainan Island off shore wind field distribution also showed obvious asymmetry, northeast azimuth wind zone are mainly located in the center of the typhoon, the distribution of different level loop directly determines the wind distribution in Hainan Island.

关 键 词：台风 “海燕” AMSU散射计 螺旋雨带 

分 类 号：P457.8[天文地球—大气科学及气象学]