Yaghooti, M. (2014) Evaluation of synthetic unit hydrograph methods for flood estimation in Atrak Watershed. Masters thesis, University of Zabol.
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Abstract
This study aimed to determine the capability and efficiency of synthetic unit hydrograph in assessing the hydrological basin Atrak (North Khorasan) was performed. Therefore, natural and synthetic unit hydrograph using morphological data, rainfall and hydrometric surveys (blue, 91-90 years) for the Shirin darreh basin and Shourak from Shirvan city functions that are Atrak river branches. Three methods of synthetic unit hydrographs (Snyder, SCS, and Triangular), compared to the normal unit hydrograph Observational) basin were studied. Statistically compared using the RMSE statistic Nash- Sutcliffe coefficient was performed. Excel software for drawing graphs, ArcGIS software to produce thematic maps of the watershed and SPSS software was used for data analysis. The results showed that the estimated peak flow and time of peak flowbased method to calculate the time Schneider and triangular method is more efficient compared to other methods. Since the physical characteristics of the basin, rainfall has a large impact on the hydrograph, offered, the effect of this factors on the hydrograph shape separately and together in future studies were investigated.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Unit Hydrograph, Flood Estimation, Northern Khorasan |
| Subjects: | S Agriculture > S Agriculture (General) |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 19 Oct 2021 08:29 |
| Last Modified: | 19 Oct 2021 08:29 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/2806 |
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