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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 陳琪芳 | |
dc.contributor.author | Yao-Sung Hsu | en |
dc.contributor.author | 許耀崧 | zh_TW |
dc.date.accessioned | 2021-06-17T06:03:22Z | - |
dc.date.available | 2020-02-13 | |
dc.date.copyright | 2019-02-13 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2019-01-28 | |
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Gawarkiewicz, 'Preliminary acoustic and oceanographic observations from the ASIAEX 2001 South China Sea experiment,' Technical Report, Woods Hole Oceanographic Institution, MA, 2001. 22 T. F. Duda, J. F. Lynch, A. E. Newhall, L. Wu, and C.-S. Chiu, 'Fluctuation of 400-Hz sound intensity in the 2001 ASIAEX South China Sea experiment,' IEEE Journal of Oceanic Engineering, vol. 29, no. 4, pp. 1264-1279, 2004. 23 C.-S. Chiu, S. R. Ramp, C. W. Miller, J. F. Lynch, T. F. Duda, and T. Y. Tang, 'Acoustic intensity fluctuations induced by South China Sea internal tides and solitons,' IEEE Journal of Oceanic Engineering, vol. 29, no. 4, pp. 1249-1263, 2004. 24 Y.-S. Chiu, Y.-Y. Chang, L.-W. Hsieh, M.-C. Yuan, and C.-F. Chen, 'Three-Dimensional Acoustics Effects in the ASIAEX SCS Experiment,' Journal of Computational Acoustics, vol. 17, no. 01, pp. 11-27, 2009. 25 C. W. Miller, M. Stone, K. Wyckoff, and F. Bahr, 'The Windy Island Soliton Experiment (WISE): shallow water and basin experiment configuration and preliminary observations,' Technical Report, Naval Postgraduate School, Monterey, CA, 2009. 26 C. Miller, B. Reeder, M. Stone, and K. Wyckoff, 'Preliminary results from the Non-Linear Internal Wave Initiative (NLIWI) Acoustics Cruise,' Technical Report, Naval Postgraduate School, Monterey, CA, 2007. 27 D. B. Reeder, L. Y. Chiu, and C.-F. Chen, 'Experimental evidence of horizontal refraction by nonlinear internal waves of elevation in shallow water in the south china sea: 3D versus Nx2D acoustic propagation modeling,' Journal of Computational Acoustics, vol. 18, no. 03, pp. 267-278, 2010. 28 L. Y. Chiu and D. B. Reeder, 'Acoustic mode coupling due to subaqueous sand dunes in the South China Sea,' The Journal of the Acoustical Society of America, vol. 134, no. 2, pp. 198-204, 2013. 29 C. W. Miller, C.-S. Chiu, D. B. Reeder, Y.-J. Yang, L. Chiu, and C.-F. Chen, 'Preliminary observations from the 2014 Sand Dunes experiment,' Technical Report, Naval Postgraduate School, Monterey, CA, 2014. 30 L. Ding and W. Siegmann, Numerical ocean acoustic propagation in three dimensions. World scientific, 1995. 31 K. V. Mackenzie, 'Nine‐term equation for sound speed in the oceans,' The Journal of the Acoustical Society of America, vol. 70, no. 3, pp. 807-812, 1981. 32 S. R. Ramp et al., 'Internal solitons in the northeastern South China Sea. Part I: Sources and deep water propagation,' IEEE Journal of Oceanic Engineering, vol. 29, no. 4, pp. 1157-1181, 2004. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71564 | - |
dc.description.abstract | 中國南海的大陸坡上具有非常巨大的沙丘地形,沙丘分佈於160公尺至600公尺水深處,其最大振幅可超過16公尺且波長超過350公尺,推測其形成原因為南海內波經過造成的沉積物懸浮再沉澱。南海內波為世上已知最大之海洋內波,其最大振幅可達150公尺,形成於呂宋海峽並向西前進傳遞數百公里越過深海盆地,內波才逐漸因地形變淺而消散。本研究將探討沙丘地形與水文環境改變對本海域音傳產生之影響,並與南海實驗資料比較。模擬2013年與2014年南海之音傳實驗,以實驗量測之沙丘地形與2014年6月9號當日每小時之水文資料進行模擬。使用三維拋物線方程式近似法為基礎之計算模組FOR3DW(具有水平寬角度計算能力之FOR3D計算模組)進行二維(Nx2D)與三維(3D)音傳模擬,並比較兩模擬差異進以討論三維效應。受到沙丘地形與水文環境改變的影響,此海域音傳環境較為複雜且時空變動性大。受到沙丘地形影響三維效應於特定角度上較明顯,水文環境改變亦對聲能分佈產生影響,於垂直陣列錨碇上6月9號之量測資料亦可觀察出此現象。 | zh_TW |
dc.description.abstract | There are internal waves in northern South China Sea, and many large sand dunes on the upper continental slope regions. Most of sand dunes locate at the depth of 160 m to 600 m, and the largest sand dunes are observed with amplitude up to 16 m. Sand dunes and internal waves may cause 3D acoustics effects, such like focusing, defocusing and scattering phenomena. Taiwan and USA researchers worked together on Sand Dunes experiment in 2013 and 2014. In this study, the 3D PE program, FOR3DW(FOR3D with azimuthal wide-angle capability), is used to simulate Nx2D and 3D acoustic propagation in sand dunes region with internal wave. The result shows the strong spatial and temporal variability. The difference between Nx2D and 3D calculations are shown to demonstrate the 3D effects. And the result would also be compared with experiment data. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T06:03:22Z (GMT). No. of bitstreams: 1 ntu-107-R05525003-1.pdf: 6054878 bytes, checksum: 53e729f52426d5381687234c6af33759 (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 論文口試委員審定書 #
致謝 ii 中文摘要 iii ABSTRACT iv 目錄 v 圖目錄 vii 表目錄 ix 第一章 緒論 1 1.1 前言 1 1.2 研究動機與目的 1 1.3 文獻回顧 2 1.4 論文架構 7 第二章 實驗介紹 8 2.1 2013年南海聲學實驗 8 2.2 2014年南海聲學實驗 12 2.2.1 聲源錨碇 (Source Mooring) 16 2.2.2 垂直陣列錨碇 (Vertical Line Array, VLA) 18 2.2.3 海洋物理錨碇 (Physical Oceanography, PO) 20 第三章 研究方法 23 3.1 三維效應分類 23 3.2 初始聲場之修改 23 3.3 陡峭地形所產生之計算結果異常 24 3.4 模擬結果平滑化 27 3.5 聲波互換理論 28 3.6 建立沙丘高度較低之模擬地形 30 3.7 建立三維水文場 31 第四章 沙丘地形之音傳模擬 34 4.1 模擬設定 34 4.2 模擬結果與討論 37 第五章 不同時段水文資料之音傳模擬 40 5.1 模擬設定 40 5.2 模擬結果與討論 43 第六章 結論與未來工作 46 6.1 結論 46 6.2 未來工作 46 參考文獻 48 | |
dc.language.iso | zh-TW | |
dc.title | 南海北部大陸斜坡之水中音傳研究 | zh_TW |
dc.title | Underwater Acoustic Propagation on the Upper Continental Slope in South China Sea | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 黃維信,楊穎堅,邱永盛,張元櫻 | |
dc.subject.keyword | 中國南海,內波,沙丘,FOR3DW,三維效應, | zh_TW |
dc.subject.keyword | South China Sea,internal wave,sand dunes,three-dimensional effect, | en |
dc.relation.page | 49 | |
dc.identifier.doi | 10.6342/NTU201900189 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2019-01-28 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
顯示於系所單位: | 工程科學及海洋工程學系 |
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