Determining the Snow Coefficient in order to Simulate the Snow Melting in the Shemshak Watershed Using the WetSpa Model

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Ahmadyousefi S.; BAHREMAND A.; SHEIKH V.B.; KOMAKI CH.B.

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Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2020 | Volume:13 | Issue:47 Page(s): 1-8

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Title

Determining the Snow Coefficient in order to Simulate the Snow Melting in the Shemshak Watershed Using the WetSpa Model

Author(s)

Ahmadyousefi S. | BAHREMAND A. | SHEIKH V.B. | KOMAKI CH.B. | Issue Writer Certificate

Keywords

Shemshak watershed

Runoff simulation

daily hydrograph

WetSpa model

Abstract

In mountainous regions, snow forms a part of the precipitation. Therefore, snow melting is an important process in hydrology and hydraulic in these areas that its role should be considered independently in runoff generation. The Shemshak watershed basin located in Tehran province was selected as the study area of this research to examine the efficiency of the WetSpa hydrologic model to simulate the runoff generated from snow melting in a 12-year period (2002-2014). Spatially distributed model of WetSpa simulates various hydrological processes such as snow melting using degree-day method in a cell and on hourly and daily time scales. Different hydrologic processes in this research are simulated by the WetSpa model using climatic data (rainfall, temperature, evaporation, and discharge) and spatial maps (land use, soil texture, and Digital Elevation Model). Evaluation of the model performance to simulate the daily hydrograph based on the Nash-Sutcliffe and Kling-Gupta showed that the values of these criteria are 71. 3 percent and 83 percent, respectively. based on the results, the WetSpa model has a good capability to simulate the runoff generated from snow melting in the daily time scale. Also, the snow coefficient for the study region was 0. 28.

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APA: Copy

Ahmadyousefi, S., BAHREMAND, A., SHEIKH, V.B., & KOMAKI, CH.B.. (2020). Determining the Snow Coefficient in order to Simulate the Snow Melting in the Shemshak Watershed Using the WetSpa Model. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 13(47 ), 1-8. SID. https://sid.ir/paper/955216/en

Vancouver: Copy

Ahmadyousefi S., BAHREMAND A., SHEIKH V.B., KOMAKI CH.B.. Determining the Snow Coefficient in order to Simulate the Snow Melting in the Shemshak Watershed Using the WetSpa Model. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2020;13(47 ):1-8. Available from: https://sid.ir/paper/955216/en

IEEE: Copy

S. Ahmadyousefi, A. BAHREMAND, V.B. SHEIKH, and CH.B. KOMAKI, “Determining the Snow Coefficient in order to Simulate the Snow Melting in the Shemshak Watershed Using the WetSpa Model,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 13, no. 47 , pp. 1–8, 2020, [Online]. Available: https://sid.ir/paper/955216/en

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