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 “"Idrologia"”.
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Dimensionamento di invasi per il controllo dei deflussi nei bacini urbanizzati
Urbanization is a continuing phenomenon in all the world. Grasslands, forests, etc. are being continually changed to residential, commercial and industrial complexes, roads and streets, and so on. One of the side effects of urbanization with which engineers and planners must deal with, is the …
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Ottimizzazione delle reti di distribuzione idrica tramite algoritmi genetici multi-obiettivo
Water distribution networks optimization is a challenging problem due to the dimension and the complexity of these systems. Since the last half of the twentieth century this field has been investigated by many authors. Recently, to overcome discrete nature of variables and non linearity of …
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Analisi degli aspetti di qualità nella gestione dei sistemi di drenaggio urbano attraverso modellazione numerica e indagini di campo
In order to protect river water quality, highly affected in urban areas by continuos as intermittent immissions, it is necessary to adopt measures to intercept and treat these polluted flows. In particular during rain events, river water quality is affected by CSOs activation. Built in order to …
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Un modello spazialmente distribuito per la modellazione fisicamente basata del contributo locale al trasporto solido in sospensione in alvei fluviali
La presente tesi di dottorato si propone lo sviluppo di un modello spazialmente distribuito per produrre una stima dell'erosione superficiale in bacini appenninici. Il modello è stato progettato per simulare in maniera fisicamente basata il distacco di suolo e di sedimento depositato ad opera delle …
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Catchment scale modelling of micro and emerging pollutants
The fate and transport of solutes introduced into a watershed and sampled at the catchment outlet depends on many environmental, chemical and hydro-climatological forces.Moreover, if the solutes are micro and emerging pollutants (i.e. pharmaceuticals), which are non-regulated contaminants not …
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On the role of mixing in controlling transport of aqueous species in heterogeneous formations
The fate of reactive solutes in groundwater is largely determined by mixing, since dilution and reactions are controlled by mixing rates. By mixing we refer to the overlap of solute bodies with a different composition, which makes possible the encounter between reacting molecules. Therefore the …
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On the effects of hydrological uncertainty in assessing the impacts of climate change on water resources
This dissertation focuses on the assessment of projected changes on water resources by the end of this century (2071-2100), considering an ensemble of high resolution future climate scenarios, the effects of hydrological parameterisation, and the bias of the hydrological model in representing …
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Streamflow Generation in alpine Catchments: The role of hydrological and geochemical information
Headwaters in Alpine regions represent the large majority of streams in natural or nearly natural conditions, which provide essential ecosystem services. These catchments are particularly sensitive to temperature changes and may suer significant changes because of climate variations. Thus, …
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Homogenization and analysis of hydrological time series
In hydrological studies, it is very important to properly analyze the relationship among the different components of the water cycle, due to the complex feedback mechanisms typical of this system. The analysis of available time series is hence a fundamental step, which has to be performed before …
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Modelling water budget at a basin scale using JGrass-NewAge system
Water resources availability and its variability is one of the most pressing global problems. Hydrological models are useful to understand the water balance of a basin, providing information for water resource forecast, assessment, and management. The effectiveness of the models in estimating the …
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Linking Carbon Dynamics in Stream Ecosystems to Dissolved Organic Matter Quality
Stream ecosystems form an active component of the carbon (C) cycle, and are identified as “hotspots” for carbon dioxide (CO2) emissions. However, the mechanisms driving CO2 emissions from streams are not completely understood. Beside the input of C in the form of CO2 from groundwater, streams …
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Flood hazard sensitivity on infrastructures in small ungauged watersheds
L'abstract è presente nell'allegato / the abstract is in the attachment
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Exploring Boundary Layer Dynamics: Steady and Unsteady Canopy Flows and The Vertical Velocity Skewness in Turbulent Boundary Layers
L'abstract è presente nell'allegato / the abstract is in the attachment
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Novel post-processing applications in weather science
L'abstract è presente nell'allegato / the abstract is in the attachment
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Water resources planning and climate change adaptation strategies of Sardinian basins under water-limited conditions
Sardinia, an island in the western Mediterranean Sea, serves as a natural laboratory to study the effects of climate change on ecosystems and water resources in water-limited environments. Long-term observations over the last century have revealed significant declines in winter precipitation, a …
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Hydrological modelling with components: the OMS3 NewAge-JGrass system
NewAge-JGrass system for forecasting and modelling of water resources in general at the basin scale. As a modern hydrological modelling, it is composed of two parts: (i) the system for data and results visualization based on the Geographic Information System uDig and (ii) the component based …
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Modelling fine sediment transport over an immobile gravel bed
Fine-grained sediment represents a significant component of the total transport load in most fluvial systems around the world that are not limited to the alluvial rivers with sandy beds. A variety of natural or human actions, such as fire, logging, flow diversion, road construction, and urban or …
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A Cooperative Game Theory Approach for Cost Allocation in Complex Water Resource Systems
In order to obtain an optimal water resource planning and management, a fair and efficient rule of cost allocation among the different water users has a very important function. Starting from a correct assignation of costs it is possible to establish the basis to define the pricing policy that …
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Simulatore di Pioggia Reale da Laboratorio: dalla pioviggine all'acquazzone
L'abstract è presente nell'allegato / the abstract is in the attachment
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Space-time estimation of flood quantiles
L'abstract è presente nell'allegato / the abstract is in the attachment
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