Use of constrained linear system (CLS) for rainfall-runoff modelling | |
| Author | Sally, Mass Hilmy |
| Call Number | AIT Thesis no. WA-79-15 |
| Subject(s) | System analysis Hydrologic models |
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Constrained Linear System (CLS) is presented as a black-box approach to modelling the rainfall-runoff relationship. A set of constraints that is related to the physics of the hydrologic system is imposed. Since data in many hydrologic situations contains errors, the relatively simple CLS model is expected to yield forecasts that are as good as those obtained from more complex conceptual models. CLS is applied to a 42 sq.km. catchment in Central Java. The estimation of kernels that reflect the catchment characteristics is shown to be of great importance for proper forecasts. The model also shows sensitivity to the degree of lumping (timewise) of the input data. It is expected that CLS modelling will have greater degree of success in larger catchments, where time of concentration is 5 to 10 times the input lumping time; longer kernel lengths thus becoming physically justifiable. |
| Year | 1980 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Selvalingam, Selvadore |
| Examination Committee(s) | Eggers, Helmut ;Huynh, Ngoc Phien |
| Scholarship Donor(s) | Government of Australia |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1980 |