碩士 / 國立臺灣海洋大學 / 海洋環境資訊學系 / 95 / The basic problem encountered for running a tidal model for a local, coastal area is how to specify the tidal level at the open boundary. To do this one often has to run a large regional model, for which boundaries are placed at locations with know tidal data. Then tidal models with successively smaller area and smaller grid size are run using results of the next larger area for their boundary condition. This study used a hydrodynamic model to simulate tides for a reginal area with 1km gird size. The tidal constants for each grid near Taiwan were analyzed by harmonic analysis. The boundary conditions used in the model were from Li (1987) and NAO.99Jb (Matsumoto et al., 2000), respectively. There were only slight difference between results using the two boundary conditions. However, NAO.99Jb boundary conditions did show a better result. In addition, phase of semidiurnal tide near northeastern corner of Taiwan had a difference about 20°~30° for both model from the measured phase. The correlation coefficient between the simulated time series and that predicted by measured tidal constants for tidal stations were all above 0.9.
For purpose of this paper, this study ran a tidal model for a local, coastal area at Keelung and Taichung. To compare the surface elevation with measured provided by the Central Weather Bureau, the correlation coefficients were above 0.93. The maximum root mean square error was 0.44m. The results of this paper showed on http://140.121.165.75.
| Identifer | oai:union.ndltd.org:TW/095NTOU5282017 |
| Date | January 2007 |
| Creators | Mie-Chun Liu, 劉美君 |
| Contributors | Cheng-Han Tsai, 蔡政翰 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 71 |
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