气候变化领域集成服务门户(CCPortal): Multi-scenario flash flood hazard assessment based on rainfall–runoff modeling and flood inundation modeling: a case study

CCPortal

DOI	10.1007/s11069-020-04345-6
	Multi-scenario flash flood hazard assessment based on rainfall–runoff modeling and flood inundation modeling: a case study
	Zhang Y.; Wang Y.; Zhang Y.; Luan Q.; Liu H.
发表日期	2021
ISSN	0921030X
起始页码	967
结束页码	981
卷号	105 期号:1
英文摘要	Flash flooding is one of the most devastating natural disasters in China. A quantitative flash flood hazard assessment is important for saving human lives and reducing economic losses. In this study, integrated rainfall–runoff modeling (HEC-HMS) and hydraulic modeling (FLO-2D) schemes were used to assess flash flood inundation areas and depths under 5-year, 10-year, 25-year, 50-year, 100-year, 200-year, 500-year and 1000-year rainfall scenarios in a mountainous basin (Hadahe River Basin, HRB) in northern China. The overall flash flood hazard in HRB is high. Under the eight rainfall scenarios, the total flooded area ranged from 6 to 8.73 km2; the flash flood inundation areas with depths of 1–2 m, 2–3 m, and over 3 m was 1.53–2.69 km2, 0.63–1.44 km2 and 0.33–1.11 km2, respectively; and these areas accounted for 25.5–30.8%, 10.5–16.5% and 5.5–12.7% of the whole flooded area. The total flooded area increases rapidly with the return period increasing from 5 to 200 years, and the increase gradient slows when the return period is greater than 200 years. In the downstream area of HRB, the flash flood area with inundation depths greater than 1 m accounted for 54–71% of the flooded area under the eight scenarios. In comparison to other areas in the HRB, the downstream area is at the highest risk given its extensive inundation and substantial property exposure. The quantitative hazard assessment framework presented in this study can be applied in other mountainous basins for flash flood defense and disaster management purposes. © 2020, Springer Nature B.V.
关键词	China Flash flood Hydraulic modeling Hydrological modeling Quantitative hazard assessment
英文关键词	flash flood; hazard assessment; hydraulics; integrated approach; numerical model; quantitative analysis; rainfall-runoff modeling; return period; river basin; China
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/206715
作者单位	Key Laboratory of Environmental Change and Natural Disaster of Ministry of Education, Beijing Normal University, Beijing, 100875, China; Academy of Disaster Reduction and Emergency Management, Ministry of Emergency Management and Ministry of Education, Beijing Normal University, Beijing, 100875, China; National Disaster Reduction Center of China, Beijing, 100124, China; Beijing Municipal Climate Center, Beijing, 100089, China; Hydrology Bureau of Liaoning Province, Shenyang, 110003, China
推荐引用方式 GB/T 7714	Zhang Y.,Wang Y.,Zhang Y.,等. Multi-scenario flash flood hazard assessment based on rainfall–runoff modeling and flood inundation modeling: a case study[J],2021,105(1).
APA	Zhang Y.,Wang Y.,Zhang Y.,Luan Q.,&Liu H..(2021).Multi-scenario flash flood hazard assessment based on rainfall–runoff modeling and flood inundation modeling: a case study.Natural Hazards,105(1).
MLA	Zhang Y.,et al."Multi-scenario flash flood hazard assessment based on rainfall–runoff modeling and flood inundation modeling: a case study".Natural Hazards 105.1(2021).