Future Water Use Planning by Water Evaluation and Planning System Model
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Future Water Use Planning by Water Evaluation and Planning System Model Satiprasad Sahoo 1 & Anirban Dhar 2 & Anupam Debsarkar 3 & Biswajeet Pradhan 4,5,6 Abdullah M. Alamri 7
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Received: 2 July 2020 / Accepted: 20 September 2020/ # Springer Nature B.V. 2020
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 FiniteDifference 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
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11269-02002680-8) contains supplementary material, which is available to authorized users.
* Biswajeet Pradhan [email protected] Extended author information available on the last page of the article
Sahoo S. et al.
1 Introduction Assessment of water availability are generally performed through the dynamic balance between precipitation, infiltration, and evapotranspiration (Kourgialas et al. 2019). Both surface water and groundwater availability information are equally important for future water use planning framework under changing climatic conditions (Zhang 2015). Thus future water availability estimation through hydrogeological models is not meaningful without bias correction of weather data (Shrestha et al. 2017). Optimum water resource allocation is challenging for agricultural and domestic activities in any river basin (Wang et al. 2016). In the present work, we have proposed an integrated framework for future water use planning based on the Water Evaluation and Planning System (WEAP) for the proposed hydraulic structures contributing areas in
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