南麂岛重现期波高空间分布特征分析  

Characteristics of wave height spatial distribution with different return periods in Nanji Island

作　　者：郭敬[1] 李尚鲁 李婷 王勤[1] 朱业[1] GUO Jing;LI Shang-lu;LI Ting;WANG Qin;ZHU Ye(Marine Monitoring and Forecasting Center of Zhejiang,Hangzhou 310007 China)

机构地区：[1]浙江省海洋监测预报中心,浙江杭州310007

出　　处：《海洋预报》2020年第5期86-94,共9页Marine Forecasts

基　　金：海洋设施渔业受灾破坏机理分析与风险预警技术服务产品研发及应用。

摘　　要：运用第三代海浪模式SWAN,建立浙江沿海波浪传播模型,选取1949—2016年68 a对平阳县南麂岛影响严重的118场台风进行计算,得到南麂岛周围海域年极值海浪场,经P-Ⅲ曲线拟合分析后得到不同重现期海浪空间分布场。结果表明:南麂岛西北方向的波高明显小于东南方向的波高。从海浪角度考虑,南麂岛马祖岙、国姓岙海域的波高明显小于其他海域的波高,是南麂岛开展渔业养殖的最佳地点。Using the third-generation wave model SWAN,a coastal wave propagation model is established for the Zhejiang coastal area.A total of 118 typhoons that severely affected Nanji Island in Pingyang County from 1949 to 2016 are selected to calculate the annual extreme waves around Nanji Island.The P-Ⅲcurve fitting analysis is performed to obtain the spatial distribution of ocean waves with different return periods.The results show that the wave height northwest of Nanji Island is significantly smaller than that in the southeast area.From the perspective of ocean waves,the wave heights in the Mazuao and Guoxingao sea areas are significantly smaller than those in the other sea areas of Nanji Island,making them the best places for fishery and aquaculture in Nanji Island.

关 键 词：SWAN 海浪 南麂岛 波高 重现期 

分 类 号：P731.22[天文地球—海洋科学]