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Showing 1 to 16 of 16 for “"WEPP"”.
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Evaluating Best Management Practices For Minimized Pesticides Transport With The Wepp-Ui Model
… Erosion Prediction Project University of Idaho (WEPP-UI) model with coupled pesticide module can realistically simulate both types of runoff processes as well as dissolved pesticide loss. Simulated runoff and dissolved atrazine concentrations were compared to observed data from mulch till (MT) …
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A Methodology for Planning Road Best Management Practices Combining WEPP: Road Erosion Modeling and Simulated Annealing Optimization
… a methodology is presented here that combines WEPP: Road erosion predictions with simulated annealing optimization. Under this methodology, erosion predictions associated with BMP options for a segment comprise the objective function of an optimization problem. This methodology was tested on a …
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A Methodology for Planning Road Best Management Practices Combining WEPP: Road Erosion Modeling and Simulated Annealing Optimization
… a methodology is presented here that combines WEPP: Road erosion predictions with simulated annealing optimization. Under this methodology, erosion predictions associated with BMP options for a segment comprise the objective function of an optimization problem. This methodology was tested on a …
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Uso do modelo WEPP (Water Erosion Prediction Project) modificado para estimar taxas de erosão em estradas florestais
… e, com esses resultados, validar o modelo WEPP por meio de comparações entre dados observados e dados preditos pelo modelo. A pesquisa foi realizada no projeto de reflorestamento, povoamento de Pinus caribaea Morelet e Pinus oocarpa Schiede, pertencente à Fazenda Monte Alegre, em Agudos São …
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Modeling Erosion on Construction Sites
… construction site parameters for the validated WEPP erosion prediction model. Predicted values were correlated with field observations for runoff and sediment yield. Runoff volumes and sediment yields similar to those measured on an active construction site were achieved by removing the A …
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Simulating the Soil Erosion from Land Removed from CRP
… change. The Water Erosion Prediction Project (WEPP), a process based erosion prediction model developed by USDA, was utilized in this study for this purpose. Runoff and sediment yield data from a continuous com field in Brookings, South Dakota were used to calibrate the model. Data collection …
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Sediment Delivery from Reopened Forest Roads at Stream Crossings in the Virginia Piedmont Physiographic Region, USA
… from the Water Erosion Prediction Project (WEPP) were compared to field observations of surface runoff and sediment delivery to evaluate model performance. Annual sediment delivery rates from reopened (bare) legacy road approaches to stream crossings were 7.5 times higher than those of …
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Evaluation of Best Management Practices for Bladed Skid Trail Erosion Control and Determination of Erosion Model Accuracy and Applicability
… Erosion Prediction Project for Forest Roads (WEPP – Forest Roads). Erosion model predictions were also regressed against field based results to determine accuracy. The bladed skid trail BMP treatments evaluated were: 1) water bar only (Control); 2) water bar and grass seed (Seed); 3) water …
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Evaluation of road erosion prediction models applied to unpaved roads in a small tropical watershed in Eastern Brazil
… comparison. Models chosen for evaluation were WEPP: Road, SEDMODL, and STJ-EROS. To determine the applicability of these models to the case study watershed, a classification system was developed to score road segments according to sediment production and delivery potential. Field observations …
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Soil Erosion from Forest Haul Roads at Stream Crossings as Influenced by Road Attributes
… Three erosion models, USLE-forest, RUSLE2, and WEPP were compared to trapped sediment data from the 37 forest haul road stream crossing approaches in the first study. The second study assessed model performance from five variations of the three erosion models that have been used in previous …
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Areal Modeling of Erosion for Environmental Nonpoint Applications (AMEENA)
… for these scenarios than did RUSLE2 and WEPP. The catchment scale study highlighted features of AMEENA that are not available in RUSLE2 and WEPP in terms of identifying erosion “hot spots” and the ability to utilize the explicit sediment flow path identification in locating best placement …
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Modeling fate and transport of Cryptosporidium parvum and rotavirus in overland flow
… pathogen, the Water Erosion Prediction Project (WEPP) is coupled with the pathogen transport model. Outputs from WEPP simulations (flow velocity, depth, saturated conductivity and the soil particle fraction exiting in flow) are transferred as input to the pathogen transport model. Altogether four …
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Predicting Sediment Detachment and Channel Scour in the Process-Based Planning Model ANSWERS-2000
… on process-oriented equations developed for the WEPP model and they can be applied to ungaged watersheds with a wide variety of soils and land use conditions. The new model (ANSWERS-2000) was evaluated on three watersheds and its predictions were compared with the previous version of ANSWERS. On …
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Efficacy of operational stream crossing best management practices on truck roads and skid trails in the Mountains, Piedmont, and Coastal Plain of Virginia
… and Water Erosion Prediction Project (WEPP) methodologies. Implementation ratings (BMP-, BMP-standard, BMP+) were developed to characterize crossings with respect to state implementation standards. Costs for upgrading crossings to a higher BMP category were estimated by adjusting cover …
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The Effects of Stream Crossings and Associated Road Approaches on Water Quality in the Virginia Piedmont
… Erosion Prediction Project for forest roads (WEPP) and the forest version of the Universal Soil Loss Equation (USLE). In-stream water samples were collected at fixed locations above and below each crossing and were evaluated for total dissolved solids (TDS), pH, conductivity, water …
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Developing a comprehensive modeling framework to assess the impacts of agricultural activities on the fate and transport of sediment
The student, Sanghyun Lee, accepted the attached license on 2022-04-13 at 15:42.