A Comparative Study of the AHP and TOPSIS Techniques for Dam Site Selection Using GIS: A Case Study of Sistan and Baluchestan Province, Iran

Jozaghi, Ali; Heidary, Hossein; Hatami, Mohsen; Flood, Ian; Khorrami, Mohammad; Khodaei, Nastaran; Tousi, Erfan Ghasemi

doi:10.20944/preprints201810.0773.v1

Cited by 43 publications

(16 citation statements)

References 36 publications

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“…Furthermore, Kashafrood River passing through the northeast of the city has important effects on the depositional process of the fine-grained deposits and is the most significant geomorphic phenomenon of Mashhad watersheds 53 , 75 . Based on the previous reports 53 , 75 – 77 , sediment and alluvial fan deposits generally contain gravels and sands, extend over the south, southwest, and west parts of the city and alluvial plain deposits consist of clays and silts, cover center and eastern parts.…”

Section: Resultsmentioning

confidence: 88%

Extreme subsidence in a populated city (Mashhad) detected by PSInSAR considering groundwater withdrawal and geotechnical properties

Khorrami

Abrishami

Maghsoudi

et al. 2020

Sci Rep

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Ground deformation can cause serious environmental issues such as infrastructure damage, ground compaction, and reducing the ground capacity to store water. Mashhad, as one of the largest and most populated cities in the Middle East, has been suffering from extreme subsidence. In the last decade, some researchers have been interested in measuring land subsidence rates in the Mashhad valley by InSAR techniques. However, most of those studies were based on inaccurate measurements introducing uncertainties in the resulting subsidence rates. These researches used a small number of EnviSat data with long perpendicular and inhomogeneous temporal baseline. This paper seeks to determine the subsidence rate in urban areas of Mashhad in recent years, the threat that was neglected by the city managers and decision-makers. For this purpose, the Persistent Scatterer inSAR technique was applied in the study area using two time-series of descending and ascending Sentinel-1A acquisitions between 2014 and 2017. The results demonstrated the maximum line-ofsight deformation rate of 14.6 cm/year and maximum vertical deformation (subsidence) rate about 19.1 cm/year which could have irreversible consequences. The results were assessed and validated using piezometric data, GPS stations, and geotechnical properties. This assessment confirms that the main reason for subsidence in the interested area is groundwater over-extraction. Also, investigation of geotechnical properties shows that thick fine-grained layers in the northwest of the city could strongly affect the results. At the end of this paper, a new simplified method was proposed to estimate specific storage in special cases to predict the subsidence rate. Ground deformation has been reported as one of the severe geological hazards around the world 1. It is mainly due to the fact that anthropogenic activities such as fluid extraction or injection, underground excavations, and expanding construction have been increased in many regions as a forthcoming problem 2-5. Multiple studies have reported that several areas are suffering from land subsidence as a result of fluid overextraction. These areas include but are not limited to cities in

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Section: Resultsmentioning

confidence: 88%

Extreme subsidence in a populated city (Mashhad) detected by PSInSAR considering groundwater withdrawal and geotechnical properties

Khorrami

Abrishami

Maghsoudi

et al. 2020

Sci Rep

Self Cite

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“…The analytic hierarchy process (AHP), developed by Thomas Saaty [9], is an effective method for dealing with complex decision-making from the elicited judgments from experts [10]. This method helps decision-makers set priorities between alternatives, sub-criteria and criteria in the decision-making process and also helps them to make the best decision [11][12][13][14][15][16][17].…”

Section: Methodsmentioning

confidence: 99%

The Selection of Anchoring System for Floating Houses by Means of AHP Method

2020

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This paper indicates and analyses the use of anchoring systems, such as mooring piles, booms, mooring cables, and deadweight anchors with additional elastic connectors, which are the most frequently applied by the producers of floating houses. The selection of the most advantageous anchoring system is complicated and requires the application of quantitative and qualitative data and methods. This publication presents the results of the calculations using one of the most common methods of multi-criteria analysis of decision-making, namely AHP (analytic hierarchy process). The anchoring system, which is the most beneficial for users, has been indicated with the use of the main criteria such as: cost, time, external risk factors, geospatial factors, and the sub-criteria of the first and second order. Due to the conducted analysis, it has been shown that the most significant factor of the anchoring system selection for the users of floating houses is the investment cost that needs to be borne during the usage, and the most favourable anchoring system is the use of mooring cables.

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“…The Analytical Hierarchy Process (AHP) is one of the most widely adopted MCDM techniques as TOPSIS [ 41 ]; therefore, a comparison analysis between the proposed method with AHP method was conducted. For ensuring the fairness of comparison, the AHP method was given the same indicator weights obtained by fuzzy BWM method to avoid large differences in ranking caused by the different indicator weights, which means the proposed fuzzy BWM-TOPSIS method was compared with the fuzzy BWM-AHP method.…”

Section: Case Studymentioning

confidence: 99%

Regional Water Resources Security Evaluation Based on a Hybrid Fuzzy BWM-TOPSIS Method

Chen

Wang

et al. 2020

IJERPH

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Nowadays, water resource security is becoming increasingly prominent, and this problem is a primary bottleneck restricting China’s future sustainable development. It is difficult to come to a unified conclusion on water resources security, and applications of highly feasible evaluation methods are lacking in practice. In this paper, a novel evaluation methodology is proposed for regional water resources security evaluation. First, water security is divided into two aspects: water quantity security and water quality security. The disposal rate of harmless household garbage, the excellent water resources proportion, and the functional water body loss proportion are creatively considered as indicators of water quality security in the evaluation system. In addition, a Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method is used to evaluate the water security levels in different regions. For distinguishing the importance of different indicators, a Best–Worst Method (BWM) is employed to calculate the indicator weights, as triangular fuzzy linguistic sets can more flexibly describe the preferences of decision makers (DMs) regarding the indicators; therefore, it is embedded in BWM to determine indicator weights. Moreover, the fuzzy BWM-TOPSIS method is applied to evaluate the water security levels of six regions in North China, a comparison analysis with the equal weight TOPSIS method as well as the fuzzy BWM-AHP method, and a sensitivity analysis for indicator weights are presented to illustrate the effectiveness of this proposed method. Finally, some suggestions based on the evaluation results are given for effective and rational utilization of water resources in North China.

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A Comparative Study of the AHP and TOPSIS Techniques for Dam Site Selection Using GIS: A Case Study of Sistan and Baluchestan Province, Iran

Cited by 43 publications

References 36 publications

Extreme subsidence in a populated city (Mashhad) detected by PSInSAR considering groundwater withdrawal and geotechnical properties

Extreme subsidence in a populated city (Mashhad) detected by PSInSAR considering groundwater withdrawal and geotechnical properties

The Selection of Anchoring System for Floating Houses by Means of AHP Method

Regional Water Resources Security Evaluation Based on a Hybrid Fuzzy BWM-TOPSIS Method

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