气候变化领域集成服务门户(CCPortal): Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria

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DOI	10.1007/s11069-020-04272-6
	Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria
	Tella A.; Balogun A.-L.
发表日期	2020
ISSN	0921030X
起始页码	2277
结束页码	2306
卷号	104 期号:3
英文摘要	Ibadan, one of the largest cities in West Africa, experiences recurrent flood hazards, causing severe damages to lives and properties. Although various flood susceptibility models have evolved to mitigate flood hazards in different parts of the world, model performances vary according to the peculiarity of the study area and conditioning factors. Therefore, specialized studies are essential to determine model performances for specific locations. This study develops an integrated spatial multi-criteria decision-making model to classify flood susceptibility in Ibadan, Nigeria. For the improvement of the weighting accuracy of the flood causative criteria, Fuzzy AHP (FAHP) was integrated with GIS for the weight computation and overlay process. Ten flood causative factors were evaluated using the AHP and FAHP models. Results indicate rainfall, runoff, and distance to stream as the most significant flood causative factors with FAHP and AHP weights of 22%, 18%, 16%, and 23%, 23%, 18%, respectively. The FAHP and AHP maps identified the southern region as the most susceptible, with the FAHP also highlighting the susceptibility of the central region. The models’ accuracies were validated by overlaying the AHP and FAHP maps with locations of previous flood occurrences in the study area. The Fuzzy AHP map had a 91% alignment with the historical flood locations while the AHP model produced a 45% match, confirming the higher accuracy of the FAHP model and suitability for flood susceptibility mapping in Nigeria and other West African cities. © 2020, Springer Nature B.V.
关键词	Africa Flood susceptibility Fuzzy AHP GIS Nigeria
英文关键词	analytical hierarchy process; decision making; ensemble forecasting; flooding; fuzzy mathematics; GIS; hazard assessment; multicriteria analysis; spatiotemporal analysis; Nigeria
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205968
作者单位	Geospatial Analysis and Modelling (GAM) Research Laboratory, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar, Perak 32610, Malaysia
推荐引用方式 GB/T 7714	Tella A.,Balogun A.-L.. Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria[J],2020,104(3).
APA	Tella A.,&Balogun A.-L..(2020).Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria.Natural Hazards,104(3).
MLA	Tella A.,et al."Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria".Natural Hazards 104.3(2020).