| Author | Le Anh Tuan |
| Call Number | AIT Thesis no.WA-90-19 |
| Subject(s) | Runoff--Vietnam
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Longterm hydrologic data (such as Streamflow, Rainfall, etc.) is of vital importance in the analysis, design and planning of any type of water resources project. In Central Vietnam as in other development regions, few streams are gaged i.e. provided with a recording system. For large numbers of ungagged streams there is commonly no provision for recording data.
The NAM model was first applied in Thubon basin of Quangnam-Danang province, Central Vietnam. For the purpose of predicting the continuous runoff at ungagged basins, initially the model was applied at Thubon gaged basin as a " reference" one. Then, the model was calibrated and verified in order to gain the best fit between the computed and observed hydrographs. The verification of the calibrated NAM model was carried out also to another small basins Tamky and Lung which are located in the same region and Thubon. The rainfall and streamflow records of Lung basin have recently been gaged at the basin outlet and its data was used to validate the model.
After the calibration, the model was applied to ungagged basins (which are Truong, Khang, Lung, Tranh, and Namnim basins) without calibration by transferring calibrated parameter values of a gauged basin after being adjusted according to the area characteristics of the ungagged basin. Sensitivity analysis of some parameters was also carried out to investigate the effect of these parameters on the model simulation and to increase the efficiency of the calibration process.
It was found that prospects of model's applicability to daily streamflow estimation is promising in Quangnam - Danang province, Central Vietnam and the model is inevitably a good engineering tool for the prediction of annual discharge. It can be used as a tool for water resources investigations in small basins. |
| Year | 1990 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Jensen, Niels Einar ;Paudyal, Guna N.
|
| Examination Committee(s) | Gan, Thian Yew ;Huynh, Ngoc Phien
|
| Scholarship Donor(s) | The Royal Thai Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |