DOI: 10.1007/s11069-020-04272-6
论文题名: Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria
作者: Tella A. ; Balogun A.-L.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 104, 期: 3 起始页码: 2277
结束页码: 2306
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168767
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Tella A.,Balogun A.-L.. Ensemble fuzzy MCDM for spatial assessment of flood susceptibility in Ibadan, Nigeria[J]. Natural Hazards,2020-01-01,104(3)