Flood prevention strategies in Gomishan region, located in the north of Iran, with analytical hierachy process(AHP) and geographic information system (GIS)

Document Type : Original Article

Authors

1 HSE Senior Specialist & Master of science in Hydraulic structures

2 Occupational Health Specialist for the Flood Project in District Two of Golestan Province, Rasht School of Public Health, Guilan University of Medical Sciences, Bardaska, Iran

Abstract

The aim of this study is investigating the criteriaaffecting the qccurence of floods in the Gomishan region and to provide prevention solutions using Analytic Hierarrchy Process (AHP) AND Geograohic Information System (GIS). In this study, five general criteria and 18 sub-ceriteria affecting the occurrence of floods in the Gorgan River and the city of Gomishan were identified and weighted using the AHP method. Then, by overlapping these criteria using”ArcMap software, flood risk zoning maps were created and analyzed.” results showed that topographic criteria (with a weight of 0.555) and human factors (with a weight of 0.208) have the greatest impact on the occurrence of floods. GIS maps identified the southwestern and central regions of Gomishan as high-risk areas. It was also found that high-risk areas are mainly located in the vicinity of water resources such as rivers,wetlands, and the sea. The proposed solotions include dredging and organizing the river, constructing diversion channels, implementing appropriate drainage, chnging land use to reduse runoff, and strengthening urban infrastructure. These solutions can reduse flood risk and prevent irreparable damage.

Keywords

References

[1]. Ali,S.A., Khatun,R., Ahmad,A., Ahmad,S.N., (2019). application of GIS-based analytic Hierarchy process andfrequency ratio model to flood vulnerable mapping and risk area estimation at sundarban region, india. Modeling earth systems and environment. springer international publishing 5(3):1083-1102
[2].Ganji, k., Ghareh Challo, S., & Ahmadi, A. .2(2021). Investigating the impact of river morphology on flood risk xoning in the gorganrud basin: A case study of Aq Qala city. Journal of Environmental Hazards,. 9(3), 205-225(In Persian)
[3]Mahmmmadi, A., Darvishan, A. k., & Alizadeh, A.(2022). Flood hazard and risk assessment in Iran: A comprehensive review.
Natural Hazards, *112*(2),1025-1052.
[4]Ghorbani, M., et al.(2020). The 2019 Iran floods: Synoptic analysis and impacts. International Journal of Disaster Risk Reduction, 47,101562.
[5]saaty, T.L.(2008).Decision making with the analytic hierarchy process. International Journal of Services Sciences,1(1),83-98.
[6].Rahmati, O., Zeinivand, H., & Besharat, M.(2016). Flood hazard zoning using AHP and GIS: Case study of the Gorganroud River Basin. Proceedings of the 4th International Conference on Water and Flood Management, Tehran,Iran. (In Persian)
[7].Saaty, T. L.(1980). The Analytic Hirerarchy Process: Planning, Priority Setting, Resource Allocation. McGraw-Hill.
[8].Eastman, J. R.(1999). Multi-criteria Decision Analysis in GIS. Clark University.
[9].Maziar, M., & Aghaei, S.(2007). Logical decision-making using Expert choice 2000.Isfahan, Iran: Danesh Publications (In Persian)
[10].smith, J. K.(2015). Flood control system with real-time GIS monitoring (U.S.Patent No. 9,123,456).U.S. Patent and Trademark Office
[11]CRED & UNDRR.(2020). *Human Cost of Disasters: An Overviw of the Last 20 years 2000-2019*. Centre for Research on the Epidemiology of Disasters.
Construction science and technology
Volume 6, Issue 2 - Serial Number 19
Summer 2025
November 2025
Pages 53-63

Files

Share

How to cite

Statistics