| Author | Bhattarai, Shashank Raj |
| Call Number | AIT Caps. Proj. no.CIE-15-09 |
| Subject(s) | Hydrologic models--Dudh Koshi Basin (Nepal)--Evaluation
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| Note | A Capstone Project report submitted in partial ful llment of the requirements for the degree of Bachelor of Science in Engineering Civil and Infrastructure Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Caps. Proj. ; no. CIE-15-09 |
| Abstract | This study presents a method of using hydrological modeling for simulating the dis- charge in Dudh Koshi River, Nepal. In the following study we first used ArcGIS tool HEC-GeoHMS to delineate the catchment. HEC-HMS rainfall runoff model is developed for the Dudh Koshi River in order to nd out the discharge at the outlet point (Rabuwabazar). As the first objective, the developed rainfall runoff model was calibrated and validated. In order to calibrate and validate various parameters were adjusted. Dudh koshi is a snow fed river, and the snow has considerable contribution towards the discharge. After a certain trials it was found that this basin model cannot be calibrated nor validated due to lack of snow data. There is a huge gap between the observed and simulated discharge though all the parameters were adjusted. As the second objective, sensitivity analysis was performed for each and every parameters. This analysis helps to rank model parameters on the basis of their effect in overall model predictions. In this study, a local sensitivity analysis was adopted for evaluating the model. The final set of calibrated models were deemed as the baseline and then the model was run repeatedly with each parameters value from 10During this process only one parameters value was interfered with while the rest were kept constant. The hydrographs resulting from the scenarios of the adjusted model parameters were then compared with the baseline model hydrograph. Here, there are seven parameters which were subjected to sensitivity analysis. The parameters in which sensitivity analysis were performed were Initial Loss, Constant Rate, Time of Concentration, Storage Coefficient, Muskingum X, Muskingum k and Infiltration. |
| Year | 2015 |
| Corresponding Series Added Entry | Asian Institute of Technology. Caps. Proj. ; no. CIE-15-09 |
| Type | Capstone Project |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Civil and Infrastructure Engineering (CIE) |
| Chairperson(s) | Shrestha, Sangam; |
| Examination Committee(s) | Taravudh Tipdecho; |
| Degree | Capstone Project (B.Sc.)-Asian Institute of Technology, 2015 |