Abstract
In the present study, the height of internal solitary wave is derived by combining the theoretical fluid flow field from perturbation method and MODIS images. The flow field is derived by assuming two-layer fluid system. Note that it is difficult to determine the interface depth from CTD measurement because sea water density changes continuously with depth. Moreover, changing the upper layer thickness will significantly affect the estimate of wave height. Thus, a proper method should be used so that the two-layer fluid system can represent the continuously stratified sea water. The resulting parameters for the two-layer system are the upper and lower layer thickness h1 and h2 and the corresponding densities £l1 and £l2 . Another important parameter dpp derived from MODIS images is the distance from dark-band to light-band. The dark-band and light-band are due to the interaction of surface and internal waves that changes roughness on the ocean surface. These processes are discussed in detail in this thesis. Finally, the parameters h1, h2, £l1, £l2 and dpp are combined to estimate internal solitary waves height in the deep ocean. According to the estimate for deep ocean with 3000m depth, the wave height is about 100m which is quite reasonable by comparing with in-situ observation.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0906110-110102 |
| Date | 06 September 2010 |
| Creators | Wang, Chi-Meng |
| Contributors | Yiing Jang Yang, Yu-Huai Wang, Guan-Yu Chen, Ruo-Shan Tseng |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0906110-110102 |
| Rights | restricted, Copyright information available at source archive |
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