Search results for "Experimental basin"

showing 6 items of 6 documents

Monitoring and predicting sediment yield in a small Sicilian basin

2001

Identifying areas of a basin that are most sensitive to erosion have stimulated the study of within–basin variability of the sediment–delivery processes and the use of spatially distributed models. To verify the reliability of a sediment–delivery distributed model applicable at the morphological unit scale (i.e., the area of clearly defined aspect, length, and steepness), experiments were carried out at mean annual and event scales in a small Sicilian basin. A Geographical Information System is briefly presented into which the measurements carried out at the basin outlet (runoff, sediment yield, etc.) and other point and areal information (soil erodibility, digital terrain model, etc.) were…

Hydrologygeographygeography.geographical_feature_categoryScale (ratio)Distributed element modelDrainage basinSediment yieldSedimentExperimental basinStructural basinAgricultural and Biological Sciences (miscellaneous)Geographical information systemErosionSoil erosionEnvironmental scienceSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliSpatial variabilitySurface runoff
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Testing the Modified Sediment Delivery Model (MOSEDD) at SPA2 Experimental Basin, Sicily (Italy)

2017

A new version of a spatially distributed sediment delivery model taking into account the hillslope sediment transport efficiency, named MOSEDD, is presented. This model gives estimates of basin sediment yield at event scale, which are more reliable than those obtained by the original SEDD. For SPA2 basin discretized into morphological units, four different calculation schemes of MOSEDD, including the original SEDD version, were applied. All parameterization schemes of the model were calibrated using 15 events measured at the outlet of the experimental basin in the period February 2005–February 2010. The model calibration was used to determine a relationship between the coefficient βe of the…

sediment deliveryMOSEDDsoil erosion2300experimental basinEnvironmental ChemistrySoil ScienceSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestalidistributed modelDevelopment3304 Education
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Testing Sediment Connectivity at the Experimental SPA2 Basin, Sicily (Italy)

2017

The concept of sediment delivery can be used as a measure of sediment connectivity, and it can be linked to the structural connectivity (morphological unit, slope length, slope steepness, travel time) of a basin and to the hydrological connectivity (rainfall–runoff processes at morphological unit scale). In this paper, the sediment connectivity concept was tested at basin scale applying SEdiment Delivery Distributed model, which takes into account the hillslope sediment transport, and using sediment yield measurements carried out at SPA2 experimental basin (Sicily, Italy). For the SPA2 basin discretized into morphological units, the SEdiment Delivery Distributed model was first calibrated a…

010504 meteorology & atmospheric sciencesScale (ratio)0208 environmental biotechnologyMagnitude (mathematics)Soil Science02 engineering and technologyExperimental basinDevelopmentStructural basin01 natural sciencesEnvironmental ChemistryDevelopment3304 Education0105 earth and related environmental sciencesGeneral Environmental ScienceSediment connectivityHydrology2300Distributed element modelSEDD modelSediment020801 environmental engineeringErosionSoil erosionWEPPSediment transportSediment deliveryGeology
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Modelling sediment delivery using connectivity components at the experimental SPA2 basin, Sicily (Italy)

2018

Sediment delivery ratio can be used as a measure of sediment connectivity and it can be linked to the structural connectivity (morphological unit, slope length, slope steepness, travel time) of a basin and to the functional connectivity (rainfall-runoff processes at morphological unit scale). In this paper the sediment connectivity approach was applied at basin scale both using Sediment Delivery Distributed (SEDD) model, which takes into account the hillslope sediment transport, and sediment yield measurements carried out at SPA2 experimental basin (Sicily, Italy). The expression of the sediment delivery ratio SDRi of a morphological unit was modified for highlighting two components corresp…

Scale (ratio)0208 environmental biotechnologyGeography Planning and DevelopmentMagnitude (mathematics)Soil scienceExperimental basin02 engineering and technologyStructural basinSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliSediment connectivityNature and Landscape ConservationEarth-Surface ProcessesGlobal and Planetary ChangeSEDDSedimentGeology04 agricultural and veterinary sciences020801 environmental engineeringTravel timeEarth-Surface ProcesseSoil erosion040103 agronomy & agricultureErosion0401 agriculture forestry and fisheriesSediment deliverySediment transportIntensity (heat transfer)GeologyJournal of Mountain Science
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Sediment delivery processes and chemical transport in a small forested basin

2005

Recent reaserch has directed attention to the properties of the eroded material because of its influence in deposition phenomena and in carrying capacity of pollutant materials

soil erosionforested basinchemical enrichment ratioexperimental basinSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestaliuniversal soil loss equationchemical transportsediment yieldgeographical information system
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Evaluation of the SEDD model for predicting sediment yield at the Sicilian experimental SPA2 basin

2007

In this paper a spatially distributed model of the hillslope sediment delivery processes, named the sediment delivery distributed (SEDD) model, is initially reviewed; the model takes into account the sediment delivery processes due to both the hillslope sediment transport and the effects of slope curvature. Then the rainfall and sediment yield events measured at the experimental SPA2 basin, in Sicily, are used both to calibrate the SEDD model and to verify the predictive capability of the distributed sediment delivery approach at event scale. For the SPA2 basin discretized into morphological units and stream tubes, the SEDD model is calibrated at event scale using the measurements carried o…

HydrologySediment yieldsoil erosionScale (ratio)Distributed element modelGeography Planning and DevelopmentSedimentPredictive capabilityStructural basinsediment yieldsediment deliveryexperimental basinEarth and Planetary Sciences (miscellaneous)CalibrationEnvironmental sciencedistributed modelSediment transportEarth-Surface ProcessesEarth Surface Processes and Landforms
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