气候变化领域集成服务门户(CCPortal): Urban flood hazard mapping using a hydraulic

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DOI	10.1007/s11069-019-03850-7
	Urban flood hazard mapping using a hydraulic–GIS combined model
	Feng B.; Wang J.; Zhang Y.; Hall B.; Zeng C.
发表日期	2020
ISSN	0921030X
起始页码	1089
结束页码	1104
卷号	100 期号:3
英文摘要	Urban flooding is a reoccurring disaster, and its frequency and intensity are likely to increase in the future due to the increasing frequency of storm events. Up-to-date monitoring on the distribution of flood hazards in cities is necessary and valuable for urban planning. This research combines two common urban flooding approaches, namely hydraulic and GIS models, in a case study of London, Ontario, Canada. The hydraulic–GIS combined model employs the hydraulic concept in a simplified GIS frame, hence avoiding heavy computation in the hydraulic model and arbitrary coefficients in a GIS model. We used a binary logistic regression model to integrate the hydraulic concept in a GIS model. The multi-criteria GIS model built by binary logistic regression was able to simulate the results from the hydraulic model with good consistency. Such a strategy serves as a promising prototype for addressing similar geographical modelling issues, where the time-consuming physical model can be potentially replaced by a simplified GIS model. Furthermore, the impervious surface percentage is an important input in the hydraulic model. This research experimented different impervious surface percentages as input to the hydraulic model and found that a spatially variable impervious surface percentage achieves better agreement with hydraulic modelling than that of uniform (25% and 42%) impervious surface percentages. © 2020, Springer Nature B.V.
关键词	Flood hazard map GIS model Hydraulic model Multi-criteria
英文关键词	flooding; GIS; hazard assessment; hydraulics; mapping; multicriteria analysis; numerical model; regression analysis; urban area; Canada; London [Ontario]; Ontario [Canada]
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/205690
作者单位	The University of Western Ontario, 1151 Richmond St, London, ON, Canada; Canada Centre for Mapping and Earth Observation, Natural Resources Canada, 560 Rochester St, Ottawa, ON, Canada; Education and Research, Esri Canada, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Feng B.,Wang J.,Zhang Y.,等. Urban flood hazard mapping using a hydraulic–GIS combined model[J],2020,100(3).
APA	Feng B.,Wang J.,Zhang Y.,Hall B.,&Zeng C..(2020).Urban flood hazard mapping using a hydraulic–GIS combined model.Natural Hazards,100(3).
MLA	Feng B.,et al."Urban flood hazard mapping using a hydraulic–GIS combined model".Natural Hazards 100.3(2020).