Application of hybrid models for forecasting daily inflow to the Hoabinh Reservoir, North Vietnam | |
| Author | Nguyen Thi Ky Nam |
| Call Number | AIT Thesis no. WA-91-14 |
| Subject(s) | Reservoirs--Vietnam--Hoabinh Hydrological forecasting--Vietnam--Mathematical models |
| 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 | Two models were applied in this study to forecast the inflow to the Hoabinh reservoir in the Da river, North of Vietnam. The first model is the Multiple Linear Regression (REGRESS). The second one is the Linear Perturbation model (LPM) and its extended version (LPME). Discharge and rainfall data in the periods of 1972-1976 and 1980 were used for model calibration and verification respectively. The forecasting equations were provided for all the stations in which the study was concentrated on forecasting inflow for Hoabinh reservoir. Major conclusions can be drawn from this study. Firstly, rainfall data alone could not be used to forecast river discharge in the Da river basin. The forecasts were significantly improved when discharge at the station under consideration and discharge at the upstream stations were included. The contribution of each factor in the order of importance is as follows: discharge at the station under consideration, discharge at the upstream station and past rainfall. Secondly, the full version of the models could give excellent prediction of discharge at Hoabinh and other stations. The differences in the forecasted discharges obtained from the REGRESS model and the LPME model were insignificant. The REGRESS model is preferable due to its simplicity. |
| Year | 1991 |
| 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) | Gupta, Ashim Das ;Huynh Ngoc Phien |
| Examination Committee(s) | Nophadol In-na |
| Scholarship Donor(s) | The Government of Finland |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1991 |