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Showing 1 to 10 of 10 for “"SCS curve number"”.
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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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Green-Ampt infiltration model parameter determination using SCS curve number (CN) and soil texture class, and application to the SCS runoff model
… of Agriculture (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 …
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A comparison of Scs runoff prediction methods for two large watersheds in Sri Lanka
… model based on the Soil Conservation Service (SCS) runoff curve method. The study results showed that the application of standard SCS tables and standard abstractions does not adequately predict computed direct runoff. The standard SCS curve number method produced good predictions at optimum …
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A quantitative analysis of the impact of land use changes on floods in the Manafwa River Basin
… due partly to climate change which enhances the number of weather extremes like excessive rainfalls or droughts. This increase in flood events is also a response to land use changes; as more people use the land for agriculture and housing the percentage of less pervious and impervious area …
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Modeling Flash Floods in Small Ungaged Watersheds using Embedded GIS
… model applies the Soil Conservation Service (SCS) curve number (CN) method and synthetic dimensionless unit hydrograph (UH), and Muskingum stream routing modeling technique to formulate flood characteristics and rapid update FFG for the study area of interest. The end result of this study is a …
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Nitrogen modeling of potato fields in the Bolivian Andes using GLEAMS
… experimental plot repetitions using a calibrated SCS curve number of 90. The RSR and PBIAS, respectively, for soil total Kjeldahl N concentration were 3.0 and -2.2%. The RSR and PBIAS, respectively, for crop dry matter production were 7 and 21%. The RSR and PBIAS, respectively, for crop N uptake …
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Assessment of groundwater vulnerability to pesticide contamination in Albemarle and Louisa counties, Virginia
… for pesticide chemical characteristics, SCS curve number, and soil properties. A total of 12 landuse categories were identified for Albemarle and Louisa counties. Groundwater recharge, an input to the AF model, was estimated using a water balance model. Runoff and evapotranspiration …
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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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Integrated watershed modeling of mountainous landscapes : Assessing the environmental performance of an intensive farming system in South Korea
… quite well and gave better results than the SCS curve number method with daily data. However, even though the use of sub-daily simulation gave better results, their overall test, and use is restricted by limited availability of input but also measured corresponding output variable like …