Numerical simulation and preliminary analysis on ocean waves during Typhoon Nesat in South China Sea and adjacent areas
文献类型：CNKI期刊论文
| 作者 | Wang JC(王际朝); Zhang J(张杰) ; Yang JG(杨俊钢)
|
| 发表日期 | 2014-05-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | typhoon WAVEWATCH III(WW3) cross-calibrated multi-platform(CCMP) South China Sea signifi cant wave height swell |
| 英文摘要 | Using the wave model WAVEWATCH III(WW3), we simulated the generation and propagation of typhoon waves in the South China Sea and adjacent areas during the passage of typhoon Nesat(2011). In the domain 100°–145°E and 0°–35°N, the model was forced by the cross-calibrated multi-platform(CCMP) wind fi elds of September 15 to October 5, 2011. We then validated the simulation results against wave radar data observed from an oil platform and altimeter data from the Jason-2 satellite. The simulated waves were characterized by fi ve points along track using the Spectrum Integration Method(SIM) and the Spectrum Partitioning Method(SPM), by which wind sea and swell components of the 1D and 2D wave spectra are separated. There was reasonable agreement between the model results and observations, although the WW3 wave model may underestimate swell wave height. Signifi cant wave heights are large along the typhoon track and are noticeably greater on the right of the track than on the left. Swells from the east are largely unable to enter the South China Sea because of the obstruction due to the Philippine Islands. During the initial stage and later period of the typhoon, swells at the fi ve points were generated by the propagation of waves that were created by typhoons Haitang and Nalgae. Of the two methods, the 2D SPM method is more accurate than the 1D SIM which overestimates the separation frequency under low winds, but the SIM method is more convenient because it does not require wind speed and wave direction. When the typhoon left the area, the wind sea fractions decreased rapidly. Under similar wind conditions, the points located in the South China Sea are affected less than those points situated in the open sea because of the infl uence of the complex internal topography of the South China Sea. The results reveal the characteristic wind sea and swell features of the South China Sea and adjacent areas in response to typhoon Nesat, and provide a reference for swell forecasting and offshore structural designs. |
| 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.2013AA122803) ; the Special Funds for Marine Commonweal Research(No.201305032) ; the ESA-MOST Dragon 3 Cooperation Program(No.10466) |
| 卷 | v.32期:03页:177-192 |
| 语种 | 英文; |
| 分类号 | P732;P731.2 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190454]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.UniversityofChineseAcademyofSciences 2.FirstInstituteofOceanography,StateOceanicAdministration 3.CollegeofScience,ChinaUniversityofPetroleum 4.InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Wang JC,Zhang J,Yang JG. Numerical simulation and preliminary analysis on ocean waves during Typhoon Nesat in South China Sea and adjacent areas. 2014. |
入库方式： OAI收割
来源：海洋研究所
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