| Author | Gul, Riaz |
| Call Number | AIT Thesis no. IR-92-21 |
| Subject(s) | Hydrological forecasting
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master
of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. IR-92-21 |
| Abstract | The present study explores the applicability of Back propagation (Neural
network) model to the problem of daily flow forecasting which is of great importance
from the viewpoint of water resources development and planning. Discharge and rainfall
data for Nan River Basin, in the periods of 1985-1988 and 1989 were used in
calibration and verification respectively. Multiple Linear Regression model is also used
for the same data set for comparison purposes. From a careful comparative study, it was
found that back propagation results in better forecasts compared to the multiple linear
regression model.
Several conclusions can be drawn from this study. Firstly the rainfall data alone
could not be adequate in forecasting river flow in the Nan River Basin. The forecasts
were significantly improved when discharge data at the station under consideration were
included in the rainfall data. It was found that discharge at the station under
consideration is a function of past discharges at that station, discharges at the upstream
stations and rainfall at the upstream stations. The regression model is simple while the
back propagation model is more complicated and time consuming. |
| Year | 1993 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IR-92-21 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Irrigation Engineering and Management (IR) |
| Chairperson(s) | Loof, Rainer;Nophadol In-na; |
| Examination Committee(s) | Huynh, Ngoc Phien;Onta, Pushpa Raj;Hjorth, Peder; |
| Scholarship Donor(s) | Government of Denmark; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1993 |