广西沿海年极值波高分析  

AN ANALYSIS ON ANNUAL EXTREME WAVE HEIGHTDISTRIBUTIONS ALONG GUANGXI COAST

作　　者：夏华永[1] 李树华[1] 

机构地区：[1]广西海洋监测预报中心,广西北海536000

出　　处：《热带海洋学报》2001年第2期1-7,共7页Journal of Tropical Oceanography

摘　　要：经分析发现广西沿海极值波高不符合常用的P－Ⅲ型分布，并分析了其符合的分布函数，结果表明对Weibull分布符合最好。为解决Weibull分布参数难于确定的问题，引入了共轭梯度法计算其参数。最终计算了多年一遇的极值波高。The present paper found out that the annual extreme wave heights along Guan-gxi coast don' t fit the commonly used Pearson--III distribution and answered the rea-sons. The applicable fittings for empirical curves were also discussed, results showWeibull distribution function is the better one, and conjugate gradient method was in-troduced to estimate the parameters of Weibull distribution. Finally, the return valuesestimates were carried out.

关 键 词：广西 年极值波高 WEIBULL分布 共轭梯度法 海洋工程 海洋工程 

分 类 号：P75[天文地球—海洋科学] P731.22