| 双峰海浪频谱的一种表示 |
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| 引用本文： | 管长龙,张大错,关世义.双峰海浪频谱的一种表示[J].海洋与湖沼,1996,27(2):151-156. |
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| 作者姓名： | 管长龙 张大错 关世义 |
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| 作者单位： | 青岛海洋大学物理海洋研究所!青岛，266003，青岛海洋大学物理海洋研究所!青岛，266003，航天工业总公司三院三部!北京，100074 |
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| 摘 要： | 采用低频分谱和高频分谱叠加的思想，提出了双峰海浪频谱的一种表示。所用的分谱形式为以便于确定的物理量为参数的Ｎｅｕｍａｎｎ型谱形。给出了由实测双峰谱的特征量确定分谱参数的合理途径，解释了以往双峰谱表示中高频部分过高估计的原因并予以解决，最后应用于胶州湾和南海西沙海域的实测谱。
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| 关 键 词： | 海浪 双峰谱 南海 胶州湾 |
| 收稿时间： | 1994/10/27 0:00:00 |
| 修稿时间： | 6/2/1995 12:00:00 AM |
REPRESENTATION OF BIMODAL FREQUENCY SPECTRA OF SEA WAVES |
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| Guan Changlong,Zhang Dacuo and Guan Shiyi.REPRESENTATION OF BIMODAL FREQUENCY SPECTRA OF SEA WAVES[J].Oceanologia Et Limnologia Sinica,1996,27(2):151-156. |
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| Authors: | Guan Changlong Zhang Dacuo and Guan Shiyi |
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| Institution: | Institute of Physical oceanogrophy, Ocean University of Qingdao, Qingdao 266003;Institute of Physical oceanogrophy, Ocean University of Qingdao, Qingdao 266003;The Third Research Academy, CASC, Beijing 100074 |
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| Abstract: | A representation of the bimodal frequency spectra of sea waves is presented, in which the bimodal spectra are expressed as summation of low and high frequency component spectra in Neumann form with readily determined parameters, including the zeroth moment of the spectra , peak frequency and peakness factor A procedure is given to reasonably determine these parameters on the basis of the measured spectral characteristics.The problem of overestimation at the high frequency band in the past work is explained and resolved. Application of the proposed formula to fit measured bimodal spectra obtained from Jiaozhou Bay in the Yellow Sea and the Xisha area, in the South China Sea showed good agreement between computed and measured values. |
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| Keywords: | Sea wave Bimodal spectra |
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