“灿鸿”台风期间高频地波雷达数据分析  

High Frequency Radar Data Analysis During Chan-Hom Typhoon Period

作　　者：翁怡婵[1] 石少华[1] 程祥圣[1] 齐安翔[1] 孙同美[1] 

机构地区：[1]国家海洋局东海预报中心,上海200081

出　　处：《海洋科学进展》2017年第4期495-502,共8页Advances in Marine Science

基　　金：海洋公益性行业科研专项--沿海重点保障区域精细化综合预报系统示范应用(201305031-5)

摘　　要：分析了小型阵变频高频雷达在"灿鸿"台风期间海面风、浪、流遥测结果。将雷达观测结果与定点浮标数据进行比对,表现出很好的一致性。其中径向流相关系数为0.92,均方根误差为0.13 m/s,有效波高相关系数为0.90,均方根误差为0.50m,平均波周期相关系数为0.64,均方根误差为1.12s。风向相关系数为0.55,均方根误差为40.0°。风速相关系数为0.68,均方根误差为3.26m/s。雷达对海流的探测能力最优,在高海况下对风、浪探测能力优于低海况下;雷达对"灿鸿"台风期间风、浪的探测延迟于浮标测量。结果表明小型阵变频高频地波雷达较好地反映了台风期间波浪场的空间分布及其发展变化情况,具有一定的灾害性海洋天气监测能力。This paper provides the observation results of wind,wave and current derived from the high frequency radar during the Typhoon Chan-Hom.The radar measurements show good agreements with buoy observations.The root-mean-square error of radar-derived radial current,significant wave height,mean wave period,wind speed and wind direction are 0.13 m/s,0.50 m,1.12 s,3.26 m/s,40.0°,respectively;and the corresponding correlation coefficients are 0.92,0.90,0.64,0.68,and 0.55,respectively.Results show that for all the parameters described above,the radar monitoring ability of the surface current is the best.The radar monitoring ability of wind and wave in the high sea state is better than that in the normal sea condition.In addition,during Typhoon Chan-Hom,radar detection of wave and wind is delayed to that of buoy.The results indicate that the radar system congruously displayed the wave field and evolutions,which can be used in surveillance of disaster ocean weather.

关 键 词：高频变频地波雷达 台风 有效波高 对比验证 

分 类 号：TN958[电子电信—信号与信息处理]