气候变化领域集成服务门户(CCPortal): Daily Simulation of the Rainfall-Runoff Relationship in the Sirba River Basin in West Africa: Insights from the HEC-HMS Model

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DOI	10.3390/hydrology11030034
	Daily Simulation of the Rainfall-Runoff Relationship in the Sirba River Basin in West Africa: Insights from the HEC-HMS Model
	Souley Tangam, Idi; Yonaba, Roland; Niang, Dial; Adamou, Mahaman Moustapha; Keita, Amadou; Karambiri, Harouna
发表日期	2024
EISSN	2306-5338
起始页码	11
结束页码	3
卷号	11 期号:3
英文摘要	This study focuses on the Sirba River Basin (SRB), a transboundary West African catchment of 38,950 km2 shared by Burkina Faso and Niger, which contributes to flooding downstream in Niamey (Niger). The study uses the HEC-HMS hydrological model to explore the dynamics of the daily rainfall-runoff relationship over the period 2006-2020. The model is calibrated using observed rainfall at 13 meteorological stations within the river basin and observed discharges at the Garbey Kourou hydrometric station outlet. Two types of simulation are compared: (i) a continuous simulation (CS) over the period 2006-2020 and (ii) an event-based simulation (ES) using selected major flood events in 2010, 2012, 2013, 2015 and 2020. The results showed satisfactory model performance under both modeling schemes (R2 = 0.84-0.87 for CS and R2 = 0.94-0.98 for ES), with a superior performance of ES over CS. Also, significant differences in the distribution of calibrated model parameters for the percent impervious and the attenuation flood wave factor were observed. A sensitivity analysis revealed that the curve number, initial abstraction, lag time and routing time factors were influential on the model outputs. The study therefore underscores the model's robustness and contributes crucial insights for flood control management and infrastructure planning in the SRB.
英文关键词	flood; HEC-HMS; hydrological modeling; Sirba River Basin; surface runoff
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001192479200001
来源期刊	HYDROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296635
作者单位	Abdou Moumouni University
推荐引用方式 GB/T 7714	Souley Tangam, Idi,Yonaba, Roland,Niang, Dial,et al. Daily Simulation of the Rainfall-Runoff Relationship in the Sirba River Basin in West Africa: Insights from the HEC-HMS Model[J],2024,11(3).
APA	Souley Tangam, Idi,Yonaba, Roland,Niang, Dial,Adamou, Mahaman Moustapha,Keita, Amadou,&Karambiri, Harouna.(2024).Daily Simulation of the Rainfall-Runoff Relationship in the Sirba River Basin in West Africa: Insights from the HEC-HMS Model.HYDROLOGY,11(3).
MLA	Souley Tangam, Idi,et al."Daily Simulation of the Rainfall-Runoff Relationship in the Sirba River Basin in West Africa: Insights from the HEC-HMS Model".HYDROLOGY 11.3(2024).