气候变化领域集成服务门户(CCPortal): Urban inundation response law analysis to characteristics of designed rainstorms based on coupled hydrodynamic and rainfall-tracking model

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DOI	10.1016/j.jhydrol.2024.130870
	Urban inundation response law analysis to characteristics of designed rainstorms based on coupled hydrodynamic and rainfall-tracking model
	Wang, Xinghua; Hou, Jingming; Gao, Xujun; Wang, Tian; Zhou, Qingshi; Li, Yamin; Sun, Xueliang
发表日期	2024
ISSN	0022-1694
EISSN	1879-2707
起始页码	632
卷号	632
英文摘要	Extreme stormwater and high-impervious area, caused by climate change and high-urbanization, are widely considered as the essential factors for causing urban flood. Understanding the response law of urban inundation to characteristics of rainstorms is helpful to implement integrated flood mitigation measures. Therefore, this paper is focused on exploring the urban inundation response law based on designed rainstorms by coupled hydrodynamic and rainfall-tracking model. Pilot area of Guyuan sponge city, which is divided into 5 source areas, is adopted to conduct 36 types of rainfall scenario simulations with the combination of different rainfall amounts and durations as well as peak coefficients. Inundation analysis methods is used to obtain the relationship between maximum inundation maps and characteristics of rainstorms, and source tracking analysis method is novelty proposed to excavate the response law of the connectivity among source areas to characteristics of rainstorms. First, Results of inundation analysis reveal that rainfall amount, duration and peak value are the first, second and third critical rainstorm characteristics that determine the severity of disasters, the variation of inundation volume are 140 %, 30 % and 4.2 % when precipitation and duration as well as peak value double. Second, the inundation area that water depth more than 0.5 m increases quickly is the major reason that inundation volume varies with 2 times as the increasing of precipitation; the transferring runoff volume between source areas and land use reaches 0-6 % and 0-10 % of inundation volume. Third, SA 1 and 2 are the critical subareas to manage the runoff, when precipitation equals to 200 mm, SA 1 contributes 19.5-33.7 % of inundation volume in SA 2, and SA 2 contributes 28-30 % of inundation volume in SA 3. The study is helpful to further understand the response law of inundation and relationship among source areas to characteristics of rainstorms, provide novel insights for constructing integrated flooding intervention practices.
英文关键词	Urban inundation; Response law; Characteristics of rainstorms; Source tracking
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:001203079500001
来源期刊	JOURNAL OF HYDROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303580
作者单位	Xi'an University of Technology; Xi'an University of Technology
推荐引用方式 GB/T 7714	Wang, Xinghua,Hou, Jingming,Gao, Xujun,et al. Urban inundation response law analysis to characteristics of designed rainstorms based on coupled hydrodynamic and rainfall-tracking model[J],2024,632.
APA	Wang, Xinghua.,Hou, Jingming.,Gao, Xujun.,Wang, Tian.,Zhou, Qingshi.,...&Sun, Xueliang.(2024).Urban inundation response law analysis to characteristics of designed rainstorms based on coupled hydrodynamic and rainfall-tracking model.JOURNAL OF HYDROLOGY,632.
MLA	Wang, Xinghua,et al."Urban inundation response law analysis to characteristics of designed rainstorms based on coupled hydrodynamic and rainfall-tracking model".JOURNAL OF HYDROLOGY 632(2024).