Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Curve Number Method"”.
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Simulation of local watershed nutrient and sediment delivery to Lake Texoma.
… was predicted using a modification of the curve number method in HEC Hydrologic Modeling System (HEC-HMS). Event mean concentrations were applied to land use to estimate loadings of nutrients and TSS. Total discharge from the local watersheds was estimated to be 3.02 x 107 cubic meters for …
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A comparison of Scs runoff prediction methods for two large watersheds in Sri Lanka
The paper presents the methodology and results of a hydrological study of two basins in Sri Lanka. The objective of the study was to evaluate a flood prediction model based on the Soil Conservation Service (SCS) runoff curve method. The study results showed that the application of standard SCS …
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Uganda Manafwa River early flood warning system development hydrologic watershed modeling using HEC-HMS, HEC-RAS, ArcGIS
… of similar nature. The main focus is on the loss methods used in HEC-HMS: the Curve Number loss method and the Initial and Constant loss method It is found out that the neither the Curve Number nor Initial and Constant loss method is perfectly suitable to modeling both short-term and long term …
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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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Improved Understanding Of Subsurface Hydrology In Variable Source Areas And Its Implications For Water Quality
… of the empirical Soil Conservation Service Curve Number method showed that discharge volumes were generally well predicted but revealed that for continuous predictions of VSA dynamics more conceptually coherent solutions need to be developed that consider the effect of antecedent moisture on …
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Development and evaluation of a watershed-scale hybrid hydrologic model
… generation and routing using relatively simple methodologies and state-of-the-art spatial data in a GIS environment. In Distributed-Clark, spatially distributed excess rainfall estimated with the SCS curve number method and a GIS-based set of separated unit hydrographs (spatially distributed …
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NRCS Curve Number Calibration Using USGS Regression Equations
The Curve Number (CN) method of estimating the direct runoff response to rainfall events was originally developed in the 1950's primarily for agricultural purposes in the mid-western United States. The accuracy of the CN method is greatly affected by variation of the soil type and land use of the …
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Incorporating Spatial and Temporal Variation of Watershed Response in a GIS-based Hydrologic Model
… outlet was simulated using the time-area curve concept implemented in a geographic information system (GIS). The goal of this study was to determine if hydrograph prediction accuracy would be improved by accounting for spatial and temporal variation of excess rainfall. Three models with …
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Comparative assessment of flood resilience in urban and rural environments: a case study of Chennai City and Wardha River Sub-basin, India
… (The Natural Resources Conservation Service-Curve Number) method integrated with Google Earth Engine to model runoff dynamics, demonstrating how deforestation and land conversion exacerbate surface runoff. Landscape fragmentation analysis using machine learning and the FRAGSTATS programme …
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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 discharge. …