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Coupled surface runoff and subsurface flow model for catchment simulations

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dc.contributor.author Bixio, Anna Chiara
dc.contributor.author Orlandini, Stefano
dc.contributor.author Paniconi, Claudio
dc.contributor.author Putti, Mario
dc.date.accessioned 2014-06-16T08:33:09Z
dc.date.available 2014-06-16T08:33:09Z
dc.date.issued 1999
dc.identifier.isbn 9789074134767 IT
dc.identifier.uri http://hdl.handle.net/11050/1019
dc.description.abstract A distributed catchment scale numerical model for the simulation of coupled surface runoff and subsurface flow is presented. Starting from rainfall (evaporation) records, the model first determines the infiltration (exfiltration) rates in the soil, by evaluation of the soil field capacity at the specific conditions as calculated from the three-dimensional solution of the variably-saturated groundwater flow model (Richards’ equation). The flow rate that remains or returns to the surface, the so called overland flow, is then routed via a diffusion wave surface runoff model based on a Muskingum-Cunge scheme with variable parameters. Both hillslope and channel flow are described, and a special algorithm is used for the simulation of pools/lakes effects on storm-flow response. The importance of including detailed subsurface flow description in catchment simulations is shown on a simple testcase characterized by the presence of a central depression. IT
dc.language.iso en IT
dc.publisher Wageningen Press IT
dc.relation.ispartof Modelling of transport processes in soils at various scales in time and space: international workshop of EurAgEng's field of interest on soil and water : 24-26 November 1999, Leuven (Belgium) IT
dc.subject Richards equation IT
dc.subject digital elevation model (DEM) IT
dc.subject catchment scale IT
dc.subject rainfall IT
dc.title Coupled surface runoff and subsurface flow model for catchment simulations IT
dc.type Contributo in un libro IT
dc.description.pagenumber 583-591 IT
dc.subject.een-cordis EEN CORDIS::PROTEZIONE DELL'UOMO E DELL'AMBIENTE ::Ambiente::Inquinamento delle acque / trattamento IT
dc.subject.een-cordis EEN CORDIS::FISICA E SCIENZE ESATTE::Matematica, statistica::Modellazione matematica IT

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