海浪谱峰周期与跨零周期的一个经验关系式  

An Empirical Relation Between Sea Wave Spectrum Peak Period and Zero-crossing Period

作　　者：华锋[1] 范斌[1] 卢燕[1] 王俊勤 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]中海石油研究中心,北京100027

出　　处：《海洋科学进展》2004年第1期16-20,共5页Advances in Marine Science

基　　金：国家自然科学基金资助项目--海浪数值模式及海流动力耦合数值模式研究(40076008)

摘　　要：从PM谱出发,推导出谱峰周期与跨零周期的谱关系式Tp=5π414Tz≈1.41Tz;对海上实测海浪谱资料进行了分析,表明该式所给出的系数与统计值相当接近,较好地解决了由海浪谱直接获取谱峰周期所产生的谱稳定性问题。A spectral relation between spectrum peak period and zero-crossing period T_p=5π4^(14)T_z≈(1.41T_z) is derived from the PM spectrum, and it is shown from the observed wave data analysis that the coefficient of the relation is fairly approximate to the statistical value derived from the observed data, which can well solve the spectral stability problem caused by obtaining the spectrum peak period directly from the sea wave spectrum.

关 键 词：PM谱 谱峰周期 跨零周期 海浪谱 

分 类 号：P731.22[天文地球—海洋科学]