Regulation of the Dam Rule Curve Based on Conception of Environmental Flow (Case Study: Selected Inflow Rivers to Lake Urmia)

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Soudi M.; AHMADI H.; YASI M.; Sibilla S.; HAMIDI S.A.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2019 | Volume:15 | Issue:2 Page(s): 329-341

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Title

Regulation of the Dam Rule Curve Based on Conception of Environmental Flow (Case Study: Selected Inflow Rivers to Lake Urmia)

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Keywords

Operation of DamsQ1

Hydrological MethodQ1

Flow Regime of RiversQ1

Lake UrmiaQ2

Abstract

Lake Urmia located in north-west of Iran has faced a serious environmental crisis as a result of some natural and anthropogenic factors. Regulation of rule curve of dams and their optimum redistribution is among essential actions for ecosystem conservation of the lake. In a simple Hydrological Method, optimum release from dams is estimated by calculating the runoff of downstream catchment. Accordingly, in this study the rule curves of the major reservoir dams in the Lake Urmia basin (ShahidKazemi, ShahrChai, Zola, Derik, Venyar, Ajabshir and Alavian) has been calculated under three different operation policies (30%, 50% and 80% of MAF). Then by using measured data, monthly value of QResidual (the runoff of the downstream catchment) has been calculated. In the next step, the term of QAAD (the volume of annual available water in the last station on the river) for each scenario has been determined. The results revealed that by using 80% of MAF (as scenario 3), the value of QAAD would be positive for all the assessed stations. So scenario 3 was selected as effective scenario for restoration of the lake. Finally for scenario 3, monthly value of QCAH (the nearest hydrograph to natural hydrograph of rivers) in the last station for each rivers and the term of QRW (the monthly volume of water for releasing from dam) have been calculated.

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APA: Copy

Soudi, M., AHMADI, H., YASI, M., Sibilla, S., & HAMIDI, S.A.. (2019). Regulation of the Dam Rule Curve Based on Conception of Environmental Flow (Case Study: Selected Inflow Rivers to Lake Urmia). IRAN-WATER RESOURCES RESEARCH, 15(2 ), 329-341. SID. https://sid.ir/paper/100229/en

Vancouver: Copy

Soudi M., AHMADI H., YASI M., Sibilla S., HAMIDI S.A.. Regulation of the Dam Rule Curve Based on Conception of Environmental Flow (Case Study: Selected Inflow Rivers to Lake Urmia). IRAN-WATER RESOURCES RESEARCH[Internet]. 2019;15(2 ):329-341. Available from: https://sid.ir/paper/100229/en

IEEE: Copy

M. Soudi, H. AHMADI, M. YASI, S. Sibilla, and S.A. HAMIDI, “Regulation of the Dam Rule Curve Based on Conception of Environmental Flow (Case Study: Selected Inflow Rivers to Lake Urmia),” IRAN-WATER RESOURCES RESEARCH, vol. 15, no. 2 , pp. 329–341, 2019, [Online]. Available: https://sid.ir/paper/100229/en

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