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 86 for “"hydrologic model"”.
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Hydrologic Model Development Using A Loosely Integrated Paradigm
… alternative approach for building large, complex hydrologic models. In contrast to more traditional software paradigms (i.e. procedural or object-oriented approaches), component-based approaches allow individuals to construct autonomous modeling units that can be linked together through shared …
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Development and evaluation of a watershed-scale hybrid hydrologic model
<p>A watershed-scale hybrid hydrologic model (Distributed-Clark), which is a lumped conceptual and distributed feature model, was developed to predict spatially distributed short- and long-term rainfall runoff generation and routing using relatively simple methodologies and state-of-the-art spatial …
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Exploring sensitivities of latent heat parameterizations using a coupled, integrated hydrologic model
… flow are also significant members of the hydrologic cycle, but it is evapotranspiration that links water in the subsurface to water on the land surface or in the atmosphere. Hydrologic models use parameterizations to represent the physical and physiological processes of evaporation and …
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Spatiotemporal variability of hydrologic response : an entropy-based approach using a distributed hydrologic model
Basin hydrologic response pertains to the partitioning of precipitation into stream-flow, evapotranspiration, and change in storage. The ability to explain or predict the response has many applications e.g. flood forecasting, water budget studies, and design of hydrological observing systems. …
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Incorporating Spatial and Temporal Variation of Watershed Response in a GIS-based Hydrologic Model
… and temporal variation of excess rainfall. Three models with different methods of estimating excess rainfall were developed: the Distributed Curve Number (DCN) model uses a CN for each cell, generating spatially distributed excess rainfall using the Soil Conservation Services curve number method …
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Event-based hydrologic model calibration using NEXRAD in a data-poor region of southern New Jersey
Proper calibration of hydrologic models requires both reliable observed stream flow and precipitation data. Southern New Jersey has a notable lack of observed precipitation data, in particular, at the event scale; therefore model calibration represents a significant challenge. From a design …
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Development of a Hydrologic Model for an Urban Headwater Stream: The Influence of Pervious Surface Properties on Runoff Dynamics
<p>A hydrologic model was developed for the Mullins Creek (MC) catchment located on the University of Arkansas campus in Fayetteville, Arkansas. The MC catchment is a small, dynamic urban stream system with a range of land use/land cover (LULC), an extensive and well-developed stormwater drainage …
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The use of a distributed hydrologic model to predict dynamic landslide susceptibility for a humid basin in Puerto Rico
… describes the use of a distributed hydrology model in conjunction with a Factor of Safety (FS) algorithm to predict dynamic landslide susceptibility for a humid basin in Puerto Rico. The Mameyes basin, located in the Luquillo Experimental Forest in Puerto Rico, was selected for modeling based …
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Understanding scale impacts of heterogeneity and topography on water and energy fluxes in mountain meadows using a fully-integrated hydrologic model
… moisture, and energy flux distributions. Many hydrologic models operate at scales which do not capture the variability of these parameters, often because of limited availability of computational resources and high-resolution data. The effects of these small-scale heterogeneities on local …
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Improved understanding and prediction of the hydrologic response of highly urbanized catchments through development of the Illinois urban hydrologic model (IUHM)
… must ask themselves when trying to integrate the hydrologic and hydraulic processes that affect the hydrologic response of urban catchments. The Illinois Urban Hydrologic Model (IUHM) has been developed to help answer this question and improve understanding and prediction of hydrologic response in …
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Hydrologic modeling of the Williams River with tRIBS : development and testing of a novel user interface for the TIN-based hydrologic model
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Low Flow Variations in Source Water Supply for the Occoquan Reservoir System Based on a 100-Year Climate Forecast
… supply through the use of general circulation models (GCMs). GCMs can be used to predict changes in local weather over the next century. Using GCM data as input to a hydrologic model of local water supplies, water supply managers can assess and be better prepared for the impact of these …
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MODELLING CURRENT AND FUTURE WATER RESOURCES AVAILABILITY IN AN ALPINE CATCHMENT EXPLOITED FOR HYDROPOWER PRODUCTION
… Alpine environment. This study focused on the hydrologic modelling of the Valgrosina valley (Italian Alps). It covers an area of about 130 km2 ranging from 1200 to 3400 m a.s.l. and is divided into two main branches: the Sacco valley (western side) and Eita valley (eastern side), where a dam …
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Application of HEC-HMS 3.4 in estimating streamflow of the Rio Grande under impacts of climate change
… (Papadopulos 2004). Moreover, many climatic models have generated future climate change scenarios associated with altered temperature and precipitation. To estimate future average streamflow of the Rio Grande, the Hydrologic Engineering Center — Hydrologic Modeling System (HEC-HMS) software …
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Precipitation Estimation Methods in Continuous, Distributed Urban Hydrologic Modeling
… (QPE) remains a key area of uncertainty in hydrological modeling, particularly in small, urban watersheds which respond rapidly to precipitation and can experience significant spatial variability in rainfall fields. Few studies have compared QPE methods in small, urban watersheds, and …
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Hydrodynamics and freshwater diversion within Barataria Basin
… two-dimensional, depth-integrated hydrodynamic model is applied to simulate estuarine processes. The equations for conservation of mass and momentum predict specific physical processes when forced by tidal and salinity variations at the open boundaries, wind forcing patterns, precipitation and …
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Pairing Water Rights to Land Parcels -- Connecting the Prior Appropriations Doctrine and Croplands in the western US
… irrigated croplands. Crops were analyzed within hydrologic and state boundaries to determine which are at risk under the water rights priority system in drought conditions. Lastly, outputs from a global hydrologic model were used to assess water availability under common large-scale water …
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Distributed Hydrologic Modeling of the Upper Roanoke River Watershed using GIS and NEXRAD
… are inherently spatially variable. Many hydrologic runoff models do not account for this spatial variability and instead use "lumped" or spatially averaged parameters. Lumped model parameters often must be developed empirically or through optimization rather than be calculated from field …
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