Booyeh, N. (2014) Efficiency of Empirical Curve Number and Rational Methods in Runoff and Discharge Estimation for Sarbaz Watershed. Masters thesis, University of Zabol.
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Abstract
To estimate runoff and peak flow in the watersheds, there are several experimental and indirect methods. Each method has their own region-specific coefficients, and under those conditions has been developed: therefore, they may not be suitable in the other regions and produce high errors. One of the experimental techniques that widely used in the world is the curve number method that has proposed by the Natural Resources Conservation Service, U.S. Department of Agriculture and this have been used by hydrologists and water resources researchers. In this study, the curve number method and the empirical rational method were evaluated in Sarbaz Watershed. Therefore, the flood peak discharge was determined using these methods. First, the curve numbers of the watersheds were determined using the standard tables based on vegetation cover, land use and soil hydrologic groups. The rational method was the other empirical technique. To compare the efficiency of these methods, the observed peak flow discharge was used and all estimated peak flows were evaluated. Results showed that the curve number method estimate the runoff and peak flow with less precision and higher error than the rational method in Sarbaz Watershed.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Peak discharge, Surface Runoff, Curve Number, Rational Method, Sarbaz Basin |
| Subjects: | S Agriculture > S Agriculture (General) |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 15 Jun 2016 07:46 |
| Last Modified: | 15 Jun 2016 07:46 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/780 |
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