碩士 / 國立臺灣海洋大學 / 河海工程學系 / 99 / In this study, the Princeton Ocean Model (POM) is applied to simulate storm surges and flow fields in the coastal water of Linbian River outlet. In the numerical simulations, sea level heights at open boundaries were derived from tidal model NAO.99b. The wind data are given by combining the Rankin-Vortex Model (RVM) and the ocean wind velocity and pressure data (CCMP and NCEP/NCAR). This combined wind fields with the 3-layer nested domains could increase the resolutions in time and space of POM model for the simulations in the target coastal areas.
The validated results of simulated storm surges for ten different typhoons with field tidal data have demonstrated that for areas near the typhoon paths RVM model could give quite satisfactory. For those farther away, the ocean wind model could serve as better background input data. By combining the two wind data, the correlations between simulations and field tidal measurements can amount to ranges of from 0.83 to 0.94. The ported reflood disasters in the coastal water of Linbian River outlet were further investigated for four typhoons of different paths, i.e. Chebi(2001), Utor(2001), Mindulle(2004) and Bilis(2006). The simulated highest storm surge levels are found to be from 0.95m to 0.99m during spring tide with typhoon-induced shoreward flow fields as the wind fields also turned shoreward. As a result, it is concluded that the higher storm surge heights during spring tides and shoreward flow fields at the same time could play key roles in the coastal flood hazards.
| Identifer | oai:union.ndltd.org:TW/099NTOU5192008 |
| Date | January 2011 |
| Creators | Cheng-Han Hsieh, 謝承翰 |
| Contributors | Shiaw-Yih Tzang, 臧效義 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 77 |
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