Future Water Use Planning by Water Evaluation and Planning System Model

Satiprasad Sahoo, Anirban Dhar, Anupam Debsarkar, Biswajeet Pradhan () and Abdullah M. Alamri
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Satiprasad Sahoo: Indian Institute of Technology Guwahati
Anirban Dhar: Indian Institute of Technology Kharagpur
Anupam Debsarkar: Jadavpur University
Biswajeet Pradhan: University of Technology Sydney
Abdullah M. Alamri: King Saud University

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2020, vol. 34, issue 15, No 7, 4649-4664

Abstract: Abstract Assessment of future water availability is a challenging task under changing climatic conditions and anthropogenic interventions. The current research focuses on future water resources scenario generation for contributing areas of proposed hydraulic structures generated from the Water Evaluation and Planning (WEAP) System model. The proposed methodology was implemented for the Dwarakeswar-Gandherswari river basin (India) which needs a long-term future water use plan. Bias-corrected Representative Concentration Pathways (RCPs) data were used for climate change analysis through a hydrological model. Different simulation model outputs [e.g. Dynamic Conversion of Land-Use and its Effects (Dyna-CLUE), Soil and Water Assessment Tool (SWAT), Modular Finite-Difference Flow Model (MODFLOW)] were utilized in water evaluation model for a generation of future water resources scenarios. Four scenarios (2010–2030–2050-2080) were generated for the sustainability of limited water resources management strategies. SWAT simulated results show an increase in river discharge for 2030 or 2080 and a decrease for 2050. MODFLOW simulated results show a visible groundwater storage change for 2030 but minimal change for 2050 and 2080 scenarios. The results also show a decrease in agricultural land and an increase in population for the contributing areas of three hydraulic structures during 2010–2030–2050-2080. These results provide a piece of valuable information for decision-makers in future water management plan preparation.

Keywords: MODFLOW; River basin management; SWAT; Water availability; Water demand; WEAP model (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s11269-020-02680-8

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