DOI: 10.1007/s11069-019-03850-7
论文题名: Urban flood hazard mapping using a hydraulic–GIS combined model
作者: Feng B. ; Wang J. ; Zhang Y. ; Hall B. ; Zeng C.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 100, 期: 3 起始页码: 1089
结束页码: 1104
语种: 英语
中文关键词: 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]
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168489
Appears in Collections: 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
Feng B.,Wang J.,Zhang Y.,et al. Urban flood hazard mapping using a hydraulic–GIS combined model[J]. Natural Hazards,2020-01-01,100(3)