| Author | Sanit Gansungnoen |
| Call Number | AIT Thesis no.WM-99-27 |
| Subject(s) | Tidal currents--Thailand, Gulf of
|
| Note | A thesis submitted in partial fulfillment of the requirements for the Degree of
Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | Rising and falling of sea water level in any place are not certain. The arriving of tide
affects the activity of human such as: fishing, boating and the related water sports. Tidal
current information provides the essential information for studying on pollutant movement and
governs the distribution pattern of the pollutant. Tide and tidal current forecasting are made by
numerical model because the less time consuming and low cost. ·
Two-dimensional depth average model formulated by using the Alternating Direction
Implicit CADn finite difference numerical method is used in this study. The study area for
coarse grid, grid size 9,15,18 km, is the whole Gulf of Thailand with the boundary from Kanua
River in Vietnam to Tumpat in Malaysia by water levels generated form the 4 predominant
tidal constituents namely: M2, S2, K1 and 0 1• For medium grid size 1,3 and 5 km the study
areas are Rayong Bay, Ko Samui Area (Ao Bandon) and Upper Gulf of Thailand with the
boundary given by the results of coarse grid computation. The boundary conditions for fine
grid size 100,200 and 500 m in sub areas of medium grid are given by the results of coarser
grid except at Ko Samui Area with grid size 300and 500 m. Tidal levels given by the model
are compared with the observed data, which recorded by the Hydrographic Department, Royal
Thai Navy. The computed and tidal currents are compared with the survey data, which
conducted by the National Research Council of Thailand and the Hydrographic Department,
Royal Thai Navy.
Tidal levels obtained from the model are reasonable and acceptable magnitude for all
point of comparison. For tidal currents, the reasonable and acceptable magnitude are found
except the coarse grid model magnitude at Chumporn, the magnitudes given by the model are
too small compared with field survey data. |
| Year | 2000 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Suphat Vongvisessomjai; |
| Examination Committee(s) | Tawatchai Tingsanchali;Sutat Weesakul;Izumi, Narihiro ; |
| Scholarship Donor(s) | National Research Council of Thailand (NRCT); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2000 |