气候变化领域集成服务门户(CCPortal): A 2D finite volume simulation tool to enable the assessment of combined hydrological and morphodynamical processes in mountain catchments

CCPortal

DOI	10.1016/j.advwatres.2020.103617
	A 2D finite volume simulation tool to enable the assessment of combined hydrological and morphodynamical processes in mountain catchments
	Fernández-Pato J.; Martínez-Aranda S.; García-Navarro P.
发表日期	2020
ISSN	0309-1708
卷号	141
英文摘要	Nowadays, the great power of modern computers allows to develop computational models able to deal with simulations of several coupled phenomena over detailed complex topography. An efficient and properly calibrated computational model represents a useful tool to provide insight into the catchment dynamics at hydrological and geomorphological levels. In addition, it allows to develop detailed risk management and conservation plans. In this work, we present a coupled surface-groundwater distributed flow model with hydrological (rainfall and infiltration) and geomorphological (suspended and bed load sediment transport) components. The coupled model is applied to well characterized experimental catchments that are used as realistic test cases. The calibration of the water flow model response to rainfall is performed by means of the fitting to experimental outlet hydrographs of the results supplied by a coupled formulation of 2D Shallow Water Equations and 2D Darcy's law for saturated porous media connected via suitable infiltration laws. The calibration of a suspended and bed load model is also addressed by means of the fitting to experimental outlet sedigraphs. The numerical results show a good agreement between numerical and observed hydrographs and sedigraphs, significantly improving previous published simulations. Additionally, the need to repeat the simulations in the calibration processes is no longer an unapproachable problem. © 2020
关键词	Calibration Catchments Computation theory Computational methods Equations of motion Flow of water Groundwater Porous materials Rain Risk management Runoff Sediment transport Suspended sediments Topography 2D shallow water equations Calibration process Complex topographies Coupled formulation Experimental catchments Finite volume simulations Management and conservations Saturated porous media Infiltration catchment computer simulation finite volume method flow modeling hydrological modeling morphodynamics mountain porous medium topography two-dimensional modeling
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131792
推荐引用方式 GB/T 7714	Fernández-Pato J.,Martínez-Aranda S.,García-Navarro P.. A 2D finite volume simulation tool to enable the assessment of combined hydrological and morphodynamical processes in mountain catchments[J]. Advances in Water Resources,2020,141.
APA	Fernández-Pato J.,Martínez-Aranda S.,&García-Navarro P..(2020).A 2D finite volume simulation tool to enable the assessment of combined hydrological and morphodynamical processes in mountain catchments.,141.
MLA	Fernández-Pato J.,et al."A 2D finite volume simulation tool to enable the assessment of combined hydrological and morphodynamical processes in mountain catchments".141(2020).