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 21 for “"rainfall-runoff model"”.
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Calibration of a conceptual rainfall-runoff model using simulated annealing
… to estimate the parameters of a mathematical model that predicts the water yield from a catchment. The calibration problem involves finding the global minimum of a multivariate function that has many extraneous local minima, a situation in which conventional optimisation methods are …
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Calibration of physically-based distributed rainfall-runoff model with radar data
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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Formulation and testing of a distributed triangular irregular network rainfall/runoff model
… thesis, a new distributed, continuous simulation model is developed for flood forecasting. This new model, tRIBS (triangulated Real-Time Interactive Basin Simulator), is created by integrating two models previously developed. A landscape evolution model, CHILD, is used to create the triangular …
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The application of a rainfall-runoff model to the Maury River Basin in Virginia
Several rainfall-runoff models were investigated in order to select a precipitation excess generator for an implicit flood routing scheme for the James River. The Maury River basin was chosen for testing the model. Because of ease of application and data requirements, an antecedent precipitation …
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Intelligent algorithms applied to weather radar based flood forecasting system
… a large variety of operational flood forecasting models were supplied from SW Region of the Environment Agency. Data processing, the selection of a suitable model, model calibration and parameters updating have played a more and more important role in real time forecasting and this thesis focuses …
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An investigation in to the factors influencing flood magnitude in the British Isles
… and calibration of a new causeeffect oriented rainfall-runoff model, and a new parameter is identified as representing the efficiency with which a catchment discharges its flood waters. Large errors and inconsistencies as well as a serious lack of range are found in the present soil …
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Seasonal hydrological prediction in Great Britain – an assessment
… evaluates river flow prediction using climate model output to drive a rainfall-runoff model in the Dyfi basin, Wales. Results show that climate model precipitation can not skilfully simulate Dyfi discharge. When a downscaling process is employed to generate precipitation time series, river flow …
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Utilising Reverse Hydrology to quantify and improve the spatio-temporal information content of catchment rainfall estimates for flood modelling
… is a term describing methods for estimating rainfall from streamflow. The method presented here is based on combining inversion of a causal rainfall-runoff model with regularisation. This novel method, termed RegDer, combines a continuous-time transfer function model with regularised …
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The hydrological flux of organic carbon at the catchment scale: a case study in the Cotter River catchment, Australia
Existing terrestrial carbon accounting models have mainly investigated atmosphere-vegetationsoil stocks and fluxes but have largely ignored the hydrological flux of organic carbon. It is generally assumed that biomass and soil carbon are the only relevant pools in a landscape ecosystem. However, …
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The hydrological flux of organic carbon at the catchment scale: a case study in the Cotter River catchment, Australia
Existing terrestrial carbon accounting models have mainly investigated atmosphere-vegetationsoil stocks and fluxes but have largely ignored the hydrological flux of organic carbon. It is generally assumed that biomass and soil carbon are the only relevant pools in a landscape ecosystem. However, …
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Thunderstorm runoff in southeastern Arizona.
Almost all runoff-producing rainfall on small watersheds (100 square miles and less) in southeastern Arizona results from air-mass thunderstorms. On large watersheds (1,000 square miles and greater) frontal systems which may include thunderstorm activity or snowmelt produce the major flood peaks as …
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Ensemble-characterisation of satellite rainfall uncertainty and its impacts on the hydrological modelling of a sparsely gauged basin in Western Africa
… to make accurate and timely estimations of rainfall. This problem is especially acute in sub-Saharan Africa, where a paucity of rain recording radar and sufficiently dense raingauge networks combine with highly variable rainfall, a reliance on agriculture that is predominantly rain fed and …
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Water Level Quantiles Of Devils Lake Under Down-Scaled Gcm Predictions Using A Coupled Hydro-Climatic Model
<p>The research focuses in calibrating a coupled rainfall-runoff model and a reservoir model for the Devils Lake using data from both ground gage stations and NASA satellite observations. The purpose is to determine the feasibility of using spatially distributed GCM data with a well calibrated …
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The role of soil moisture and weather patterns for flood occurrence and characteristics at the river basin scale
… hydrological (pre-)conditions in the catchment, runoff generation, flood routing, possible floodplain inundation and finally flood losses. In this thesis, a comprehensive probabilistic process-based understanding of the causes and effects of floods is advanced. The spatial and temporal dynamics …
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Pronóstico probabilístico de caudales de avenida mediante redes bayesianas aplicadas sobre un modelo hidrológico distribuido
… La presente tesis muestra el desarrollo de un modelo de pronóstico probabilístico de caudales con aplicación al proceso de toma de decisiones en una situación real de avenidas. El modelo de pronóstico se fundamenta en la combinación de un conjunto de herramientas que permiten la simulación del …
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Evaluation of irrigation water demand and agricultural land use in relation to surface water availability in Chongwe catchment.
… that was used include flow measurement data, rainfall data and irrigated areas. The study showed that the demand for irrigation has been increasing since 1963. Water demand for irrigation almost causes the flows on the Chongwe River at Chongwe Bridge to cease completely from mid-September to …
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Evaluation of irrigation water demand and agricultural land use in relation to surface water availability in Chongwe catchment.
… that was used include flow measurement data, rainfall data and irrigated areas. The study showed that the demand for irrigation has been increasing since 1963. Water demand for irrigation almost causes the flows on the Chongwe River at Chongwe Bridge to cease completely from mid-September to …
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The Varying Effects of Climate And Landscape Changes on Increased River Flows In Minnesota Watersheds
… of watershed antecedent moisture conditions and runoff storage in their proxies of potential flood impact, nor explored any direct observational evidence of intense rain event links with flooding. Therefore, to better understand the relationships between these complicating factors, this study …
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Ecologically-focused calibration of hydrological models for environmental flow applications
… sites are frequently ungaged and hydrological models must be used to characterize flow alteration. Physically-based rainfall-runoff models typically utilize a "best overall fit" calibration criterion, such as the Nash-Sutcliffe Efficiency (NSE), that does not focus on specific aspects of the …
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