Volume 9, Issue 17 (9-2018)                   jwmr 2018, 9(17): 39-48 | Back to browse issues page

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Behyan Motlagh S, Pajoohesh M, Honarbakhsh A, Salehi Hafshejani N. Assessment Performance of HEC-HMS Hydrological Model for the Lumped and Semi-distributive Watershed (Case Study: Kohsukhteh Catchment). jwmr. 2018; 9 (17) :39-48
URL: http://jwmr.sanru.ac.ir/article-1-621-en.html
Shahrekord University
Abstract:   (219 Views)

For modeling, the concept of the system and the system boundary is necessary.  The system is defined as a group of objects that in order to fulfill a specific purpose in the framework relationship or interdependence of regularly are interconnected. Systems rainfall - runoff from rainfall in the basin is started and after applying the types of losses (evaporation, infiltration, etc) it will become runoff. In the study of the HEC-HMS model for show the effectiveness of the sub-basin in runoff of the watershed is used; so SCS curve number method for losses method and SCS unit hydrograph method for transmission method were used. In beginning distribution basin model with three sub-basin then as an lumped basin model was run. The results show that the accuracy of the model in the watershed by taking sub-basin is more than lumped basin model..

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Type of Study: Research | Subject: هيدرولوژی
Received: 2016/05/5 | Accepted: 2017/09/5 | Published: 2018/09/26

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