干旱区生态环境知识资源中心(Arid): Modeling hydrologic responses using multi-site and single-site rainfall generators in a semi-arid watershed

Arid

DOI	10.1016/j.iswcr.2021.09.003
	Modeling hydrologic responses using multi-site and single-site rainfall generators in a semi-arid watershed
	Zhao, Ying; Nearing, Mark A.; Guertin, David Phillip
通讯作者	Zhao, Y
来源期刊	INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
ISSN	2095-6339
EISSN	2589-059X
出版年	2022
卷号	10 期号:2 页码:177-187
英文摘要	Hydrologic response in a watershed is driven by precipitation. Multi-site rainfall generators can be used to model watersheds using spatially varied rainfall inputs to better analyze how the rainfall variability affects runoff generation. This study adopted both a single-site rainfall generator (CLIGEN) and a multi site rainfall generator to generate two rainfall data sequences, which were then used to drive the Soil and Water Assessment Tool (SWAT) for runoff simulation. The 148-km(2) Walnut Gulch Experimental Watershed and its two sub-watersheds were selected to evaluate the hydrologic response. Runoff calibration was done against measured runoff in the watershed. Statistics showed that the single-site and multi-site rainfall generators gave similar results regarding annual precipitation. However, the multi-site generator performed much better than the single-site generator in both mean summer flow and for the different return period flows. The runoff derived from the single-site generator was significantly overestimated in all three watersheds. As for the multi-site generator, the derived runoff was satisfactorily predicted in the smaller watersheds but only overestimated in the largest watershed. This indicated that in small to medium sized watersheds, the spatial variability of rainfall could play an important role for hydrologic response because of the heterogeneity of convective rainfall in this semi-arid region, which makes the application of multi-site rainfall generator a better option than the single-site generator. (C) 2022 International Research and Training Center on Erosion and Sedimentation, China Water and Power Press, and China Institute of Water Resources and Hydropower Research. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
英文关键词	Rainfall generator Hydrologic response Watershed modeling Semi-arid Spatial variability Runoff
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000782913000002
WOS关键词	WEATHER GENERATOR ; SPATIAL VARIABILITY ; PRECIPITATION ; CATCHMENT ; SENSITIVITY ; SCALE ; BASIN ; SIMULATION ; PATTERNS ; IMPACT
WOS类目	Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393214
推荐引用方式 GB/T 7714	Zhao, Ying,Nearing, Mark A.,Guertin, David Phillip. Modeling hydrologic responses using multi-site and single-site rainfall generators in a semi-arid watershed[J],2022,10(2):177-187.
APA	Zhao, Ying,Nearing, Mark A.,&Guertin, David Phillip.(2022).Modeling hydrologic responses using multi-site and single-site rainfall generators in a semi-arid watershed.INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,10(2),177-187.
MLA	Zhao, Ying,et al."Modeling hydrologic responses using multi-site and single-site rainfall generators in a semi-arid watershed".INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH 10.2(2022):177-187.