气候变化领域集成服务门户(CCPortal): An integrated indicator-based approach for constructing an urban flood vulnerability index as an urban decision-making tool using the PCA and AHP techniques: A case study of Alexandria, Egypt

CCPortal

DOI	10.1016/j.uclim.2023.101426
	An integrated indicator-based approach for constructing an urban flood vulnerability index as an urban decision-making tool using the PCA and AHP techniques: A case study of Alexandria, Egypt
	Abdrabo, Karim I.; Kantoush, Sameh A.; Esmaiel, Aly; Saber, Mohamed; Sumi, Tetsuya; Almamari, Mahmood; Elboshy, Bahaa; Ghoniem, Safaa
发表日期	2023
ISSN	2212-0955
卷号	48
英文摘要	Several cities are exceptionally vulnerable to flood impacts due to increasing urbanization, population growth, and climate change. Quantifying flood vulnerability is useful for identifying the system's weakness, monitoring its evolution, and supporting targeted flood risk adaptation policies. One of the vital aims of assessing urban flood vulnerability is to create an understandable link between flood vulnerability conceptual theories and the daily decision-making process through an easily accessible tool. Although several studies have described the development of an integrated flood vulnerability index (FVI) combining physical, social, and economic dimensions in urban areas, this index has not been assessed in developing countries. Therefore, this study focuses on an integrated indicator-based approach to develop an urban FVI based on exposure, susceptibility, and resilience to urban flooding at the neighbourhood scale. To evaluate the flood vulnerability of the population, we used the Improvement of Vulnerability Assessment in Europe (MOVE) framework. Accordingly, the vulnerability indices cover exposure, susceptibility and resilience aspects. The index is applied to Alexandria, one of the most important coastal cities of Egypt, which is highly vulnerable due to its dense population, low adaptive capacity, flat topography, and exposure to various water-related disasters, such as cyclones, storm surges, bank erosion, sea-level rise, tidal floods, and frequent urban floods. In this study, we use inductive principal component analysis (PCA) to develop a composite indicator for the FVI and to evaluate the vulnerability of 101 census administrative units (sheyakhahs) in Alexandria. We apply the Kaiser-Meyer-Olkin (KMO) test and Bartlett's test of sphericity to assess sample adequacy and perform data standardization for all indicators. Furthermore, the analytic hierarchy process (AHP) is adopted for simplicity and comparison with the PCA results to assess their robustness. We clustered 58 and 13 flood vulnerability-related indicators into three major dimensions, i.e., physical, social, and economic, through PCA and the AHP, respectively. Official collected data are analysed using combined methods using advanced statistical analysis (SPSS) software and a geographic information system (GIS). The findings highlight the variability in flood vulnerability across highly urbanized and suburban areas. Based on the PCA, 38 indicators were defined as the most comprehensive flood vulnerability assessment (FVA) used in Egyptian cities. Additionally, due to reliability of the approach to indicator selection and the weighting process, the chosen 13 indicators for the AHP analysis yielded similar results. This research provides spatial planners and decision-makers with an integrated, comprehensive, and unified urban FVI to assess vulnerability and, thus, improve flood resilience in Egypt and countries in similar situations.
英文关键词	Climate change; Urban areas; Flood vulnerability; Vulnerability index; PCA; AHP; Decision support; MOVE framework
语种	英语
WOS研究方向	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000926874400001
来源期刊	URBAN CLIMATE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281390
作者单位	Egyptian Knowledge Bank (EKB); Cairo University; Kyoto University; Kyoto University; Egyptian Knowledge Bank (EKB); Tanta University
推荐引用方式 GB/T 7714	Abdrabo, Karim I.,Kantoush, Sameh A.,Esmaiel, Aly,et al. An integrated indicator-based approach for constructing an urban flood vulnerability index as an urban decision-making tool using the PCA and AHP techniques: A case study of Alexandria, Egypt[J],2023,48.
APA	Abdrabo, Karim I..,Kantoush, Sameh A..,Esmaiel, Aly.,Saber, Mohamed.,Sumi, Tetsuya.,...&Ghoniem, Safaa.(2023).An integrated indicator-based approach for constructing an urban flood vulnerability index as an urban decision-making tool using the PCA and AHP techniques: A case study of Alexandria, Egypt.URBAN CLIMATE,48.
MLA	Abdrabo, Karim I.,et al."An integrated indicator-based approach for constructing an urban flood vulnerability index as an urban decision-making tool using the PCA and AHP techniques: A case study of Alexandria, Egypt".URBAN CLIMATE 48(2023).