江苏近岸海域波浪的分布特征  

Distribution characteristics of wave in Jiangsu offshore sea area

作　　者：郭浩霖 宋育霖 张帆一[1] 翁添宇 

机构地区：[1]河海大学,江苏南京210098

出　　处：《水运工程》2014年第5期41-47,共7页Port & Waterway Engineering

基　　金：河海大学实践创新训练计划(201205XCX034)

摘　　要：利用2009年1—6月的实测波浪资料,研究位于江苏北部辐射沙洲南部沿海测站的波浪特征。通过统计计算和研究分析,获得其波高特征值,并探讨各特征波高与平均波高(有效波高)之间的关系;筛选出25组有效波高出现极值时刻的波面资料,运用概率统计的方法计算了波高、周期及两者之间的联合概率密度分布,并与其对应的理论公式结果进行对比。结果表明:Gluhovski分布较适用于本地区的波高分布规律;当谱宽度较小时,Longuet-Higgins理论周期分布与实测分布比较符合;实测波高与周期联合概率分布对于大波高小周期的情况与各理论分布均吻合较好。Using the measured wave data from January to June, 2009 of the coastal station in the south of the northern Jiangsu radial sand ridges, we study the wave characteristics of the area. After taking all data for statistical analysis, we gain its wave height eigenvalues and explore the relationship between each characteristic wave height and mean wave height （ significant wave height） ; after screening out 25 sets of wavefront data, whose significant wave height occurs extreme time, calculate the wave height, period and between joint probability density distribution with probabilistic method and compare them with corresponding theoretical formula results. Statistical results show that Gluhovski distribution is more applicable to the wave height distribution in this region; when the spectral width is small, Longuet-Higgins theoretical cycle distribution fit in with the measured distribution better; when the wave height is big and the period is small, the measured joint probability distribution of wave height and period and each theoretical distribution are in good agreement.

关 键 词：线性拟合 波高分布 周期分布 波高与周期联合分布 江苏 

分 类 号：P731[天文地球—海洋科学]