Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River)

Mehdi Yası; Negin Rezaeı

Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River)

Abstract

The main cause of the drying crisis of the internationally registered Urmia Lake, Iran, is the continuous declining of streamflows into the lake due to the overuse of water in agriculture over the past two decades. The determination of environmental water requirements for each of these rivers are necessary for rehabilitation of the Urmia Lake. This paper presents a hydrological desktop procedure to address a rapid evaluation of minimum environmental flows (EFs) of these rivers under which no specific bi o-riverine da ta ar e available. Ni ne different eco-hydrological methods were considered to estimate the EFs for the second largest river in the Urmia Lake Basin, the Simineh River. The ecological flow needs were investigated in four different reaches of the river, upstream and downstream of the Simineh Dam site. The results indicate that the method of “Flow Duration Curve (FDC)-Shifting” is well adapted to the natural river flow regime. In order to improve the river environmental status one step up, a range of 20% to 30% of mean annual flow (MAF) is to be allocated in four different reaches of the river. The environmental water release from the Simineh Dam is to be revised and increased from prescribed value 10% to about 23% of MAF. This revision is guaranteed with the reduction of the dam height and reservoir capacity.

Keywords

References

The article references can be accessed from the .pdf file.

Details

Primary Language

English

Subjects

Engineering

Journal Section

Research Article

Authors

Mehdi Yası ^* This is me
0000-0002-7914-1724
Iran

Negin Rezaeı This is me
0000-0001-9699-6938
United States

Publication Date

June 6, 2022

Submission Date

December 4, 2021

Acceptance Date

August 13, 2022

Published in Issue

Year 2022 Volume: 40 Number: 2

IZ

https://izlik.org/JA22BG29BS

Cite

RIS / Bibtex

APA

Yası, M., & Rezaeı, N. (2022). Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River). Sigma Journal of Engineering and Natural Sciences, 40(2), 243-251. https://izlik.org/JA22BG29BS

AMA

1.Yası M, Rezaeı N. Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River). SIGMA. 2022;40(2):243-251. https://izlik.org/JA22BG29BS

Chicago

Yası, Mehdi, and Negin Rezaeı. 2022. “Eco-Hydro Desktop Assessment for Determining Rivers Environmental Flows in Urmia Lake Basin (case Study: Simineh River)”. Sigma Journal of Engineering and Natural Sciences 40 (2): 243-51. https://izlik.org/JA22BG29BS.

EndNote

Yası M, Rezaeı N (June 1, 2022) Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River). Sigma Journal of Engineering and Natural Sciences 40 2 243–251.

IEEE

[1]M. Yası and N. Rezaeı, “Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River)”, SIGMA, vol. 40, no. 2, pp. 243–251, June 2022, [Online]. Available: https://izlik.org/JA22BG29BS

ISNAD

Yası, Mehdi - Rezaeı, Negin. “Eco-Hydro Desktop Assessment for Determining Rivers Environmental Flows in Urmia Lake Basin (case Study: Simineh River)”. Sigma Journal of Engineering and Natural Sciences 40/2 (June 1, 2022): 243-251. https://izlik.org/JA22BG29BS.

JAMA

1.Yası M, Rezaeı N. Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River). SIGMA. 2022;40:243–251.

MLA

Yası, Mehdi, and Negin Rezaeı. “Eco-Hydro Desktop Assessment for Determining Rivers Environmental Flows in Urmia Lake Basin (case Study: Simineh River)”. Sigma Journal of Engineering and Natural Sciences, vol. 40, no. 2, June 2022, pp. 243-51, https://izlik.org/JA22BG29BS.

Vancouver

1.Mehdi Yası, Negin Rezaeı. Eco-hydro desktop assessment for determining rivers environmental flows in Urmia Lake Basin (case study: Simineh River). SIGMA [Internet]. 2022 Jun. 1;40(2):243-51. Available from: https://izlik.org/JA22BG29BS