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Showing 1 to 10 of 10 for “"SCS CN"”.
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Green-Ampt infiltration model parameter determination using SCS curve number (CN) and soil texture class, and application to the SCS runoff model
… (USDA) Soil Conservation Service Curve Number (SCS CN) method is a simple and widely popular technique of estimation of direct runoff volume for design and natural rainfall events in small watersheds. The SCS CN procedure is incorporated into such computer programs as TR-20 and TR-55. Although …
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Tile -Drained Watershed Scs-Curve Number Model
Tile flow can be quantified using the altered SCS-CN method. Through theory analogy, a procedure similar to the traditional SCS-CN method was developed to estimate tile flow from rainfall. However, the relationship between initial abstractions and potential maximum retention was redefined. Curve …
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Hydrological Analysis of an Urban Basin in Sub-Tropical Environment
… and the Soil Conservation Service Curve Number (SCS-CN) map of the basin. The SCS-CN hydrograph method is used in HEC-HMS model to simulate infiltration losses and the watershed response to the different storm cases. The simulations are conducted using antecedent moisture condition (AMC) II and …
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Comparison of two hydrological models on a Virginia Piedmont watershed
… runoff volume were very sensitive to changes in SCS CN, initial abstraction coefficient and rainfall amount.
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Flood risk assessment using multi-sensor remote sensing, geographic information system, 2D hydraulic and machine learning based models
… -based soil conservation service-curve number (SCS-CN) model was developed to simulate the maximum probable surface runoff. Results showed that deforestation and urbanisation have occurred upon a given time and have been predicted to increase. Furthermore, given negative changes in LULC, surface …
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Development and evaluation of a watershed-scale hybrid hydrologic model
… distributed excess rainfall estimated with the SCS curve number method and a GIS-based set of separated unit hydrographs (spatially distributed unit hydrograph) are utilized to calculate a direct runoff flow hydrograph, and time-varied SCS CN values and conditional unit hydrograph approach for …
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Estudio técnico para la implementación de medidas enfocadas a la reducción del impacto hidrológico en la microcuenca Tutunichapa
… de urbanización que ha convertido Estudio técnico para la implementación de medidas enfocadas a la reducción del impacto hidrológico en la microcuenca Tutunichapa Salvador, enfrenta hidrológico debido al acelerado proceso de urbanización que ha convertido cerca del 77 % de su superficie en …
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Application of GIS and Remote Sensing techniques to evaluate the impact of land cover and land use changes on the hydrology and water resources of Luvuvhu River Catchment in Limpopo Province, South Africa.
… the Soil Conservation Services-Curve Number (SCS-CN) method was first used independently to simulate surface runoff and investigate the impact of land use change on runoff under historical land cover regimes. The Soil and Water Assessment Tool (SWAT) model was then applied in the …
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Distributed Hydrologic Modeling of the Upper Roanoke River Watershed using GIS and NEXRAD
… runoff volume. The gridded NRCS curve number (CN) rainfall excess determination and ModClark runoff transformation of HEC-HMS is used in this modeling study. Model results are evaluated against observed streamflow at seven USGS stream gage locations throughout the watershed. Runoff model inputs …