Experimental Investigation on the Impact of Cutoff Wall on Seawater Recession in Coastal Aquifers Using Image Processing Technique

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Zohrabi Motlagh A.; Shahrbanouzadeh M.; Mehdizadeh Mahali S.S.

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Paper Information

Journal: IRAN-WATER RESOURCES RESEARCH Year:2021 | Volume:17 | Issue:3 Page(s): 302-316

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Title

Experimental Investigation on the Impact of Cutoff Wall on Seawater Recession in Coastal Aquifers Using Image Processing Technique

Author(s)

Zohrabi Motlagh A. | Shahrbanouzadeh M. | Mehdizadeh Mahali S.S. | Issue Writer Certificate

Keywords

Seawater Intrusion

Coastal Aquifer

Cutoff Wall

Freshwater

Image Processing Technique

Abstract

Understanding the problem of Seawater Intrusion (SWI) in Coastal Aquifers plays an essential role in managing groundwater resources in these areas. This research examines seawater recession (SWR) in Coastal Aquifer in a laboratory scale; considering both homogeneous and heterogeneous environments, with and without a Cutoff Wall, and in a steadystate condition. For this purpose, different scenarios are defined in the laboratory, and all the effective parameters in the problem are considered and dimensionalized to facilitate salinity analysis. The laboratory data were analyzed using Image Processing Technique and isolines with the concentration of 5%, 95%, and transition zone (Seawater hydrodynamic dispersion zone) were determined. The results showed that in a heterogeneous case, the rate of SWI was higher, and the efficiency of Cutoff Wall performance was higher in the homogenous case than the heterogeneous case. According to the present study results, the maximum effectiveness of Cutoff Wall in SWR percentage was obtained in 100% homogeneous and 92% for the heterogeneous case. The best location of the Cutoff Wall in this study with tank dimensions of 1 and 0. 6 meters obtained 0. 8 m from the tank bed and 0. 2 m from the saline boundary. The achieved graphs helped to design the Cutoff Wall in actual media optimally.

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APA: Copy

Zohrabi Motlagh, A., Shahrbanouzadeh, M., & Mehdizadeh Mahali, S.S.. (2021). Experimental Investigation on the Impact of Cutoff Wall on Seawater Recession in Coastal Aquifers Using Image Processing Technique. IRAN-WATER RESOURCES RESEARCH, 17(3 ), 302-316. SID. https://sid.ir/paper/961714/en

Vancouver: Copy

Zohrabi Motlagh A., Shahrbanouzadeh M., Mehdizadeh Mahali S.S.. Experimental Investigation on the Impact of Cutoff Wall on Seawater Recession in Coastal Aquifers Using Image Processing Technique. IRAN-WATER RESOURCES RESEARCH[Internet]. 2021;17(3 ):302-316. Available from: https://sid.ir/paper/961714/en

IEEE: Copy

A. Zohrabi Motlagh, M. Shahrbanouzadeh, and S.S. Mehdizadeh Mahali, “Experimental Investigation on the Impact of Cutoff Wall on Seawater Recession in Coastal Aquifers Using Image Processing Technique,” IRAN-WATER RESOURCES RESEARCH, vol. 17, no. 3 , pp. 302–316, 2021, [Online]. Available: https://sid.ir/paper/961714/en

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