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 20 of 34 for “"HEC-HMS"”.
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Hydrology of the Beaver Creek watershed using the TR-20 model and the HEC-HMS program
… Engineering Center - Hydrologic Modeling System (HEC-HMS) Program. The main objective of this study was to estimate the peak discharges and obtain runoff hydrographs at various locations along the Beaver Creek watershed for return periods ranging from 1-year to 100-years. This study presents a …
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Application of HEC-HMS 3.4 in estimating streamflow of the Rio Grande under impacts of climate change
… Engineering Center — Hydrologic Modeling System (HEC-HMS) software was adopted to simulate streamflow for different climate change scenarios for the Rio Grande watershed above Elephant Butte Dam. The historical monthly streamflow, precipitation, and temperature of the tributary areas for the Rio …
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Uganda Manafwa River early flood warning system development hydrologic watershed modeling using HEC-HMS, HEC-RAS, ArcGIS
… with downstream stream discharge using ArcGIS, HEC-HMS and HEC-RAS. This work is dedicated to present the progress in the modeling endeavor, provide technical guidance to the extent possible, and facilitate hydrologic modeling efforts of similar nature. The main focus is on the loss methods used …
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Development of HEC-HMS and HEC-RAS models for urban floodplain mapping and flood damage reduction in Brownsville, Texas
The primary objective of this project was to develop hydrologic and hydraulic models for the floodplain analysis for Brownsville, Texas and analyze mitigation alternatives within a Geographic Information Systems (GIS) and digital data framework. This framework allowed for flexible manipulation of …
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Development of a HEC-HMS model to inform river gauge placement for a flood early warning system in Uganda
… warning. A hydrologic model was developed using HEC-HMS software to determine if this warning is feasible and, if so, to facilitate the optimum placement of a gauge. The HEC-HMS model relates precipitation upstream to river flow downstream. Using an historical precipitation event, the model was …
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Rainfall-runoff changes due to urbanization: a comparison of different spatial resolutions for lumped surface water hydrology models using HEC-HMS.
… Engineering Center Hydrologic Modeling System (HEC-HMS), two different modeling methods were evaluated at the different sub-watershed resolutions for four rainfall events. Calibration results indicate using the smaller spatial resolutions improves the model results. Different scenarios for land …
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Hydrologic Modeling of a Probable Maximum Precipitation Event Using HEC-HMS and GIS Models - A Case Study of Two Watersheds in Southern Virginia-
… located in south central Virginia. For each, a HEC-HMS event-based hydrologic model was constructed to simulate the rainfall-runoff response from the Probable Maximum Storm (PMS), the theoretical worst-case meteorological event that is capable of occurring over a particular region. The primary …
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Modeling Flood Reduction Scenarios for a Small Coastal Community
… Arroyo Grande Creek Watershed was studied using HEC-HMS to quantify runoff specifically into the Oceano Lagoon. HEC-HMS was calibrated using known streamflow to improve the accuracy of the model. The HEC-HMS model was developed using spatial data that was organized in ArcMAP. Data such as …
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Coupled Surface Water-Groundwater Model to Analyze Sustainability of the Atascadero Subbasin
… hydrology of the Subbasin was studied using HEC-HMS, and Visual MODFLOW was used to model the aquifer. Both HEC-HMS and Visual MODFLOW was calibrated to improve simulation accuracy. HEC-HMS was used to quantify natural recharge to the aquifer and to simulate streamflow and water level for the …
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Riverine flooding using GIS and remote sensing
… Engineering Center River Analysis System (HEC RAS) and HEC HMS models, developed by the USA Hydrologic Engineering Center of the Army Corps of Engineers in a data-poor environment of a developing country were successful, as a flood modeling tools in early warning systems and land use …
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Hydrological Analysis of an Urban Basin in Sub-Tropical Environment
… Engineering Center’s Hydrologic Modeling System (HEC-HMS). Three major storm events that occurred over the past five years in Florida are used in this study. Two of the events are from the wet season and the third is from the dry season. The urban basin namely C-11 is located in south-central …
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Modeling of Land Use Change Effects on Storm Water Quantity and Quality in the City of Carrollton and the North Texas Area
… modeling approach (the US Corp of Engineers HEC-HMS model and the US Environmental Protection Agency SWMM model). Both primary components are used together as a toolkit to support the storm water management program of the City of Carrollton, located in North Texas. By focusing limited city …
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Assessing the Potential Effects of Climate Variability on Reservoir Water Volume in North-Central Texas Using GIS and Models: A Case Study of Ray Roberts Lake.
… each scenario was input to a hydrological model (HEC-HMS) to calculate watershed runoff to Lake Ray Roberts. Model parameters are determined using Geographic Information System (GIS). The water balance was calculated for current and future water demand and resulting change in the volume and level …
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Probabilistic Flood Risk Assessment Under Climate Change Scenarios in the Humber River Watershed
… maps are generated using hydrological (HEC-HMS) and hydraulic models (HEC-RAS). Finally, flood risk is calculated by integrating the floodplain maps with the vulnerability of exposed elements. Results reveal an increase in the flood risk for most of the climate scenarios by the end of …
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Simulation of local watershed nutrient and sediment delivery to Lake Texoma.
… 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 a study window of March …
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Modelagem hidrológica e hidrodinâmica acoplada 1D/2D utilizando imagens de perfilamento a laser
… Para isso, foram utilizados os softwares livres HEC-HMS, HEC-RAS, HEC-DSSVue e QGIS (com o seu complemento dzetsaka e a ferramenta externa TauDEM). As imagens de perfilamento a laser utilizadas foram fornecidas pelo projeto Pernambuco Tridimensional e possuem resolução de 1:5000. A área de estudo …
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Élaboration d’un système de prévision hydrologique d’ensemble pour la gestion en temps réel des barrages sur la rivière Shipshaw
… sur le jugement expert. Le modèle hydrologique HEC-HMS et le modèle de réservoirs HEC-ResSim, tous deux développés par l’USACE (United State Army Corps of Engineers), ont été utilisés car ils répondent aux besoins de PFR : ils possèdent des interfaces graphiques, ils sont gratuits et simples. La …
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Event-based hydrologic model calibration using NEXRAD in a data-poor region of southern New Jersey
… are necessary for model calibration. Several HEC-HMS watershed models were developed and calibrated using NEXRAD data for the Upper Maurice River watershed in southern New Jersey, which contains the two growing urban areas of Vineland and Glassboro, to meet three objectives: (1) to validate …
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Distributed Hydrologic Modeling of the Upper Roanoke River Watershed using GIS and NEXRAD
… 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 and parameters are developed from public domain digital datasets using …
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