Assessment of a spatial multi-criteria evaluation to site selection underground dams in the Alborz Province, Iran

Abstract

2015): Assessment of a spatial multi-criteria evaluation to site selection underground dam in the Alborz Province, Iran, Geocarto International, AbstractThe most part of Iran County is located in an arid and semi-arid region, thus in most parts of a region; groundwater is the only water resource. This research presents a method based on a spatial multi-criteria evaluation (SMCE) due to design possible sites for an underground dam, and ranks them according to their suitability. The mentioned method was tested for the sitting of an underground dam in the Alborz Province, Iran. At first, screening algorithm was done using exclusionary criteria, and thirty one potential areas were recognized in the study area. In the next step, the suitable gorge or valley was recognized using the combination of basic maps and extensive field surveys (long axis of tank level) in each potential area. Subsequently, it was used of the analytical hierarchy process (AHP) as a powerful tool for decision making in spatial multi-criteria evaluation in order to evaluate different criteria for underground dam sites. SMCE techniques were then applied to combine the criteria, and obtain a suitability map in the study area. These sites were then compared and ranked according to their main criteria such as water, storage, axis, and socio-economic. All these criteria were assessed through GIS modeling. This method shows passable results and could use for site selection underground dam in other regions of Iran County. Downloaded by [University of Otago] at 10:55 23 July 2015 2

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