Abstract
In order to select suitable rainwater harvesting sites within the study area, rainwater harvesting criteria needed to be determined, defined, and structured. Several criteria played an important role in selecting the most suitable rainwater harvesting sites. A multicriteria analysis (MCA) approach, which is widely used to classify potential rainwater harvesting sites, was chosen to help select potential sites in the Wadi Horan region of Iraq. An MCA approach offered a systematic methodology focused on mathematics as well as professional expertise to organize and evaluate complex decisions. Unfortunately, there is no method for choosing among them the most appropriate for a given decision problem, as the choice remains a subjective task. This study used a geographic information system (GIS)-based approach with remote sensing to identify the optimal sites for rainwater harvesting. Four indices: evaporation, cost–benefit, sediment, and hydrology were selected in order to compare the potential sites. The analytic hierarchy process (AHP), fuzzy AHP, and rank order method (ROM) were used to assign weight to the study criteria. The results were then compared using a statistical (variance inverse (VI)) method. A sensitivity analysis was done to test the uncertainties and robustness of the results for each method. The results showed that the ROM and VI methods affected the ranking priority and considered all of the criteria that were sensitive to impact in the ranking process at the different levels compared to the methods of AHP and fuzzy AHP.
Highlights
The Western Desert of Iraq is a large arid region that has suffered from severe water shortage, due to its climatic conditions and due to a lack of water resource planning and management [1,2].This area experiences brief, high-intensity rainfall that occurs mainly within a short period of time [3].Evaporation further diminishes the already insufficient water supply [4]
Choosing the best alternative among a number of opposing alternatives is a major challenge in multicriteria decision making
These criteria were connected by weighting their importance, and it is essential to distinguish the idea of criticality with that importance
Summary
The Western Desert of Iraq is a large arid region that has suffered from severe water shortage, due to its climatic conditions and due to a lack of water resource planning and management [1,2].This area experiences brief, high-intensity rainfall that occurs mainly within a short period of time [3].Evaporation further diminishes the already insufficient water supply [4]. The Western Desert of Iraq is a large arid region that has suffered from severe water shortage, due to its climatic conditions and due to a lack of water resource planning and management [1,2]. This area experiences brief, high-intensity rainfall that occurs mainly within a short period of time [3]. The selection of any rainwater harvesting site is a decision-making process
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
