| XU Fumin,BUI THI Thuy Duyen,PERRIE Will. 2014. The observed analysis on the wave spectra of Hurricane Juan (2003). Acta Oceanologica Sinica, 33(11):112－122 |
| The observed analysis on the wave spectra of Hurricane Juan (2003) |
| 飓风Juan(2003)路径附近实测飓风浪的谱特性研究 |
| Received:April 22, 2013 Revised:June 11, 2014 |
| DOI：10.1007/s13131-014-0560-0 |
| Key words:Hurricane Juan wave spectra wave steepness spectral width WW3 |
| 中文关键词: 飓风Juan 波浪谱 波陡 谱宽 WW3模型 |
| 基金项目: |
| Author Name | Affiliation | E-mail | | XU Fumin | Key Laboratory of Coastal Disaster and Defense, Ministry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China | xfm67@hotmail.com | | BUI THI Thuy Duyen | Key Laboratory of Coastal Disaster and Defense, Ministry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China | | | PERRIE Will | Fisheries & Oceans Canada, Bedford Institute of Oceanography, Dartmouth B2Y 4A2, Canada | |
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| Abstract: |
| Hurricane Juan provides an excellent opportunity to probe into the detailed wave spectral patterns and spectral parameters of a hurricane system, with enough wave spectral observations around Juan's track in the deep ocean and shallow coastal water. In this study, Hurricane Juan and wave observation stations around Juan's track are introduced. Variations of wave composition are discussed and analyzed based on time series of one-dimensional frequency spectra, as well as wave steepness around Juan's track: before, during, and after Juan's passing. Wave spectral involvement is studied based on the observed one-dimensional spectra and two-dimensional spectra during the hurricane. The standardization method of the observed wave spectra during Hurricane Juan is discussed, and the standardized spectra show relatively conservative behavior, in spite of the huge variation in wave spectral energy, spectral peak, and peak frequency during this hurricane. Spectral widths' variation during Hurricane Juan are calculated and analyzed. A two-layer nesting WW3 model simulation is applied to simulate the one-dimensional and two-dimensional wave spectra, in order to examine WW3's ability in simulating detailed wave structure during Hurricane Juan. |
| 中文摘要: |
| 飓风Juan过境期间, 在其路径附近(路径左侧、右侧及路径上, 以及深水、浅水处)有充足的飓风浪实测数据, 该宝贵难得的实测数据使得我们能够深入地研究探讨飓风浪谱及谱参数在飓风过程中随时间和空间的动态变化规律。首先, 介绍飓风Juan及其路径附近的波浪观测站。基于由实测数据计算得到时间序列一维频率谱, 讨论和分析了在飓风Juan到达前、过境和离开后飓风浪的组成波成分以及波陡的动态变化。对飓风整个过程中的飓风浪谱进行标准化, 研究发现, 尽管飓风浪谱在飓风过程中变化剧烈, 但其标准化波谱具有相对保守稳定的特征形态。同时研究了谱宽在飓风过程中的变化。采用WW3模型二层嵌套数值方法模拟飓风Juan生成飓风浪的一维和二维波谱, 证明了WW3模型具有模拟飓风波谱细致结构的能力。 |
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