Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan
Marine energy development has been actively promoted in recent years. Analyzing wave data in the surrounding sea areas is crucial for improving wave power generator efficiency. This study collected unidirectional wave spectrum data from the northeast coastal area of Taiwan (e.g., Pengjia Islet, Fugu...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/11/12/2285 |
| _version_ | 1797380465865261056 |
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| author | Wei-Ting Chao Ting-Chieh Lin Kai-Cheng Hu Tai-Wen Hsu |
| author_facet | Wei-Ting Chao Ting-Chieh Lin Kai-Cheng Hu Tai-Wen Hsu |
| author_sort | Wei-Ting Chao |
| collection | DOAJ |
| description | Marine energy development has been actively promoted in recent years. Analyzing wave data in the surrounding sea areas is crucial for improving wave power generator efficiency. This study collected unidirectional wave spectrum data from the northeast coastal area of Taiwan (e.g., Pengjia Islet, Fugui Cape, and NTOU). It aimed to analyze the main wave types (i.e., wind waves, swell, or mixed sea) and their proportions during the northeast and non-northeast monsoon periods. The results indicate that swell waves dominate at the NTOU buoy, while wind waves dominate at the other two stations. In addition, the analysis of wave spectra ratios revealed a low percentage of unimodal spectra (only about 0.5%), and bimodal and unformed spectra presented as predominant. Furthermore, this study also introduced a brand new JW-J wave spectrum, which combines the JW and JONSWAP spectra to describe low-frequency (swell) and high-frequency (wind wave) systems, showing superior performance compared to the Torsethaugen spectrum. Finally, this research analyzed the JW-J spectrum parameters from the Pengjia Islet and Fugui Cape stations and applied these results to the NTOU bouy for effectively describing wind/swell wave variations. |
| first_indexed | 2024-03-08T20:37:39Z |
| format | Article |
| id | doaj.art-3e47da48b3924d6ca8d250caa57f2b0f |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-08T20:37:39Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-3e47da48b3924d6ca8d250caa57f2b0f2023-12-22T14:18:48ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-12-011112228510.3390/jmse11122285Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of TaiwanWei-Ting Chao0Ting-Chieh Lin1Kai-Cheng Hu2Tai-Wen Hsu3Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanDepartment of Harbor and River Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanTainan Hydraulics Laboratory, National Cheng Kung University, Tainan City 701401, TaiwanCenter of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanMarine energy development has been actively promoted in recent years. Analyzing wave data in the surrounding sea areas is crucial for improving wave power generator efficiency. This study collected unidirectional wave spectrum data from the northeast coastal area of Taiwan (e.g., Pengjia Islet, Fugui Cape, and NTOU). It aimed to analyze the main wave types (i.e., wind waves, swell, or mixed sea) and their proportions during the northeast and non-northeast monsoon periods. The results indicate that swell waves dominate at the NTOU buoy, while wind waves dominate at the other two stations. In addition, the analysis of wave spectra ratios revealed a low percentage of unimodal spectra (only about 0.5%), and bimodal and unformed spectra presented as predominant. Furthermore, this study also introduced a brand new JW-J wave spectrum, which combines the JW and JONSWAP spectra to describe low-frequency (swell) and high-frequency (wind wave) systems, showing superior performance compared to the Torsethaugen spectrum. Finally, this research analyzed the JW-J spectrum parameters from the Pengjia Islet and Fugui Cape stations and applied these results to the NTOU bouy for effectively describing wind/swell wave variations.https://www.mdpi.com/2077-1312/11/12/2285unimodal spectrumbimodal spectrumwind-wave/swell dominatedwave parameters |
| spellingShingle | Wei-Ting Chao Ting-Chieh Lin Kai-Cheng Hu Tai-Wen Hsu Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan Journal of Marine Science and Engineering unimodal spectrum bimodal spectrum wind-wave/swell dominated wave parameters |
| title | Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan |
| title_full | Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan |
| title_fullStr | Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan |
| title_full_unstemmed | Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan |
| title_short | Analysis of Unidirectional Wave Spectral Characteristics in the Northeastern Waters of Taiwan |
| title_sort | analysis of unidirectional wave spectral characteristics in the northeastern waters of taiwan |
| topic | unimodal spectrum bimodal spectrum wind-wave/swell dominated wave parameters |
| url | https://www.mdpi.com/2077-1312/11/12/2285 |
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