Comparison of Derived Instantaneous Unit Hydrograph fromH2U, Laplaceand H2U-Nash, Case Study:North Karoon River Basin, Iran
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 5, Issue 3
Abstract
Flooding is a kind of natural disaster affects life, livelihoods and human assert sat an unexpected scale. Recently there is heightened research interest in simulation of flood hydro graph as watershed response to rainfall. Hence, studying floods is counted as significant portion of hydrology and reservoir management projects;one of the most popular methods in volume trice valuation of output water from ungauged catchments is applying synthetic unit hydro graph, particularly the instantaneous type. Due to the lack of good knowledge about the performance of Laplace transformation, H2U, and H2U-Nash models in the study area the present work is an attempt to explore derived values on three catch ments located in western part of Iran, which are named Bazoft, Juneghan, and Khanmirza. For each catchment 10 individual rainfall-runoff events were collected as observation to compare to transformed Laplace hydro graph (simulated based on effective rainfall and lag time), H2U(characterized by ranking parameters of catchments and average travel time) and H2U-Nash (by applying momentum of effective rainfall and direct runoff). Statistical comparison between simulated hydro graphs and observations ranked H2U-Nash, Laplace transformation, and H2U model with RMSE 0.3, 0.37, and 0.51 in their agreement with measurements respectively. The Nash–Sutcliffe model efficiency coefficient approved this ranking as well. Moreover, Bazoft, Khanmirza, and Juneghan catchments, with mean absolute of relative errors 0.31, 0.41, and 0.46 respectively, stand in the aforesaid hierarchy based on the precision of hydro graph properties estimation in all three models. This study also covers a comparison among different properties of simulated hydro graph, on the whole models showed comprising results for the base time of hydro graphs.
Authors and Affiliations
Zohre Abdollahian Dehkordi| MSc Graduated Student of watershed Management Engineering, Faculty of Natural Resources and Earth Sciences, Shahrekord University, Shahrekord, Iran, Sayedjavad Sadatinejad| Associated professor of Watershed Management Engineering, Faculty of Natural Resources and Earth Sciences, Shahrekord University, Shahrekord, Iran, Afshin Honarbakhsh *| Assistant professor of Watershed Management Engineering, Faculty of Natural Resources and Earth Sciences, Shahrekord University, Shahrekord, Iran, email: afshin.honarbakhsh@yahoo.com, Khodayar Abdollahi| Ph.D Student, Vrije Universiteit of Brussel, Brussel, Belgium, MohammadNekooeimehr| Instructor atResearch Center of Agricultural and Natural Resources of Chaharmahal and Bakhtyari, Shahrekord, Iran
Keywords
Related Articles
- EP ID EP5889
- DOI -
- Views 309
- Downloads 7
On the bond between the degree of job stress of staff and increasing efficiency in organization (case study: Tax Administration of West Azarbaijan)
The concept of stress and its impacts on organizations has been a controversial issue of managing organizational behavior where the mental pressure declines the amount of activities in organization. Considering occupatio...
Performance Evaluation of Social Security Branchesbyusing BSC and MADM techniques
Today all managers in all organizations, asking better use of resources and capacities are available in different parts. So existence a model in order to provide feedback to improve the performance of the different branc...
The Nature and Effects of the Civil Liability of State Due To Private Contracts
This study attempts to survey concept of civil responsibility and effects of government responsibility due private contracts. This thesis make in five chapter that involved Generalities, concept and literature, works con...
Transmitted antenna in photonic crystals with negative refraction
Negative refraction uses in this paper. There is this property in metamaterials and seen in photonic crystals. We apply a structure of two dimensional photonic crystals in certain frequency for make a device that it's ch...
Effects of Dietary Supplementation with Perlite and Zeolite on Performance, Litter Quality and Carcass Characteristics of Broilers from 7- 42 Days of Age
An experiment with 300 one-day-old Ross mixed-sex broiler chicks was conducted to determine the effects of perlite and zeolite on broiler performance, litter quality and carcass characteristics. Five experimental diets [...