| Author | Ngo Van Quan |
| Call Number | AIT Thesis no.WM-05-8 |
| Subject(s) | Flood control Vietnam
|
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Dong Thap Muoi region is a hollow part of Mekong Delta in Vietnam. Flood causes a large inundation area in this region every year. It affects to water resources, environment, ecosystems, and socio-economic activities of people. More on specific, flood inundation affect directly to agricultural production. Therefore, this study deals with the assessment of flood control alternatives in order to determine damage reducing on agricultural sector to find the best alternative which bring securing long-term benefits in agricultural production in region. Three possible alternatives are proposed, through the assessment based on the most effective net benefits and whose cost of construction is acceptable for implementation for selection. Alternatives based on critical analysis of the physical constraints, present situation, and in future consideration. In order to get above purposes the determination of inundation depth, inundated area and inundation time in calculation for the scenarios are very important in damage assessment. Therefore, this study, the VRSAP model was applied to calibrate for the flood 1996 and to simulate for the flood 2000, with expect to determine inundation depth and inundation time in Tien riever, Vam Co river and the existing channel systems in calculation cases. The GIS tools were used to simulate and determine inundation area after getting water level from calculation of VRSAP model. Benefit-cost analysis of planned flood control alternatives indicates that scenarios Dredging An Phong - My Hoa channels and Building up Sluice at the end of channel is found as the most effective flood control alternatives. The combination flood control construction alternatives and damage reducing on agricultural production from flood inundation is recommended for implementation, with discount rate 10% is calculation result Benefit/Cost ratio of 2.91. Calculation results of relationship between present value (P) and interest rate (i) the results are determined that, with change of discount rates as 6%, 8%, 12% and 14%, the corresponding Benefit/Cost ratios are 3.26, 3.08, 2.75 and 2.61, respectively and internal rate of return of IRR 34.2% which is concluded that the selection is economically justified |
| Year | 2006 |
| 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) | Gupta, Ashim Das;Babel, Mukand Singh ; |
| Examination Committee(s) | Clemente, Roberto Sulit;
Sutat Weesakul; |
| Scholarship Donor(s) | Government of Denmark (Danida), Vietnam; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2006 |