Effect of wave spectrum width on the probability density distribution of wind-wave heights
文献类型：CNKI期刊论文
| 作者 | Liu YH(刘亚豪); Hou YY(侯一筠); Hu P(胡珀) ; Liu Z(刘泽)
|
| 发表日期 | 2015-09-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | wave-spectrum width probability distribution of wave heights significant wave height |
| 英文摘要 | The probability distribution of wave heights under the assumption of narrowband linear wave theory follows the Rayleigh distribution and the statistical relationships between some characteristic wave heights,derived from this distribution,are widely used for the treatment of realistic wind waves. However,the bandwidth of wave frequency influences the probability distribution of wave heights. In this paper,a wave-spectrum-width parameter B was introduced into the JONSWAP spectrum. This facilitated the construction of a wind-wave spectrum and the reconstruction of wind-wave time series for various growth stages,based on which the probability density distributions of the wind-wave heights were studied statistically. The distribution curves deviated slightly from the theoretical Rayleigh distribution with increasing B. The probability that a wave height exceeded a certain value was clearly smaller than the theoretical value for B ≥0.3,and the difference between them increased with the threshold value. The relation between the H s /σ ratio and B was investigated statistically,which revealed that the H s / σ ratio deviated from 4.005 and declined with B. When B reached 0.698 1,the H s / σ ratio was 3.825,which is about 95.5% of its original value. This indicates an overestimation in the prediction of H s from H s =4.005 σ,and provides a potential method for improving the accuracy of the H s remote sensing retrieval algorithm,critical for extremely large waves under severe sea states. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National High Technology Research and Development Program of China(863 Program)(No.2013AA09A505) ; the National Natural Science Foundation of China(Nos.U1133001,41376027,41406017) ; the NSFC-Shandong Joint Fund for Marine Science Research Centers(No.U1406401) |
| 卷 | v.33期:05页:26-33 |
| 语种 | 英文; |
| 分类号 | P731.22 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189927]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofOceanCirculationandWaves(KLOCAW),ChineseAcademyofSciences 2.InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Liu YH,Hou YY,Hu P,et al. Effect of wave spectrum width on the probability density distribution of wind-wave heights. 2015. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。