2024
DOI: 10.3390/w16030397
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A Weighted Overlay Analysis for Assessing Urban Flood Risks in Arid Lands: A Case Study of Riyadh, Saudi Arabia

Talal Alharbi

Abstract: Urban flooding poses a significant problem in arid regions, where unusual rainfall events can lead to disastrous consequences. This study used geographic information systems (GIS) to identify and predict potential flood risk zones in Riyadh City, Saudi Arabia. A comprehensive flood risk map was created by integrating various datasets, including digital elevation models (DEM), lithology, precipitation patterns, slope, and drainage density. Through a weighted overlay analysis, Riyadh was segmented into zones wit… Show more

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Cited by 2 publications
(2 citation statements)
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“…Specific weights are assigned based on the relative importance or representativeness of each factor and are superimposed to perform an analysis of interrelated data. It demonstrates usefulness in environmental and urban studies where multiple factors interact [21]. In this case, the intrinsic maps, which show greater landscape notoriety, are assigned a weight of 60%, while the extrinsic maps receive a value of 40%.…”
Section: Mapping Of Landscape Quality and Fragilitymentioning
confidence: 99%
See 1 more Smart Citation
“…Specific weights are assigned based on the relative importance or representativeness of each factor and are superimposed to perform an analysis of interrelated data. It demonstrates usefulness in environmental and urban studies where multiple factors interact [21]. In this case, the intrinsic maps, which show greater landscape notoriety, are assigned a weight of 60%, while the extrinsic maps receive a value of 40%.…”
Section: Mapping Of Landscape Quality and Fragilitymentioning
confidence: 99%
“…Indirect methods rely on techniques such as geographic information systems (GISs), photointerpretation, or consultation of thematic maps (geomorphological, geological, vegetation, etc.). For this study, multicriteria analysis with ArcGis 10.8 is particularly important, as it is successfully used in current environmental studies for territorial planning, landscape analysis, or geological risks [21][22][23]. Additionally, the process of defining landscape units, crucial for obtaining results, makes this methodology highly versatile.…”
Section: Introductionmentioning
confidence: 99%