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 337 for “"Regional scale"”.
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On the Climate-Agriculture-Water Nexus at the Regional Scale
Development of large-scale agriculture is one of the most significant anthropogenic global change processes during the 20𝑡h century. In this thesis, connections between climate, agriculture, and water availability are investigated, using examples from Egypt and the Central United States. …
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A Model for Simulating Soil-Zone Processes at the Regional Scale
… watershed processes in the context of basin-scale groundwater-flow modeling. especially those processes that partition rainfall into evapotranspiration, runoff, and deep percolation. In a series of test simulations, Richards' equation (RE) was compared with MODFLOW-SZF. Across a range of …
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Monitoring Drought at river basin and regional scale: application in Sicily
… by decision makers, especially at river basin scale. On the other hand, at regional scale, assessment of the spatial features of drought in terms of areal extent is a prerequisite for a proper identification of appropriate mitigation strategies The present thesis has addressed some of the above …
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A Spatial Decision Support System for thermal energy planning at the regional scale
… Information System)-based and performed at regional scale given that the movement of energy planning activities from national to regional and local scale allows a much more detailed analysis of both the energy demand and supply, balancing them more effectively. The integration of the spatial …
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Climate-driven growth of croplands and grasslands: analysis and modeling at regional scale
… on vegetation at global and continental scales. The studies therefore neglected that intra-annual variability in the response of terrestrial ecosystems to such changes may exist. This intra-annual variability can be seen as the difference in vegetation response to a given environmental …
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An evaluation of a data-driven approach to regional scale surface runoff modelling
Modelling surface runoff can be beneficial to operations within many fields, such as agriculture planning, flood and drought risk assessment, and water resource management. In this study, we built a data-driven model that can reproduce monthly surface runoff at a 4-km grid network covering 13 …
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Aviation environmental policy effects on national- and regional-scale air quality, noise, and climate impacts
… lays out the need for supplemental analyses on a regional scale to address who bears the cost and gains the benefits of a given policy.
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Particle-resolved aerosol modeling on the regional scale – insights into importance of capturing aerosol mixing state
… and indirectly by forming clouds. These macroscale climate effects depend on the size and composition of individual particles. Simulating the evolution of aerosols and predicting their impacts remains a challenge due to the multiscale nature of the system. Various methods exist for …
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Regional-Scale Impacts of Fluid Composition and Geologic Structure for Injection-Induced Seismicity in the Southern U.S. Midcontinent
… injection disposal, particularly into the regionally underpressured Arbuckle Group. The Arbuckle is hydraulically connected to Precambrian basement through an extensive fracture system, which transmits pressure perturbations from wastewater injections to seismogenic depths. Previous studies …
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Regional-scale groundwater flow and salt transport models for exploring agro-environmental remediation strategies in an irrigated river valley
To view the abstract, please see the full text of the document.
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Integration of Satellite Remote Sensing and Ground-based Measurement for Modelling the Spatiotemporal Distribution of Fine Particulate Matter at a Regional Scale
… distributions of air pollution at a regional scale is crucial for effective air quality control, as well as to impact studies on local climate and public health. The current practice of mapping air quality relies heavily on data from monitoring stations, which are often quite sparse …
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The use of Geographic Information System (GIS) for regional scale groundwater contamination risk assessment by chlorinated solvents in the Permo-Triassic sandstone aquifer
… are hindered by availability of information on a regional scale, in particular the difficulties in collection and collation of historical land-use data is seen as a major hurdle to the accurate prediction of areas and resources at risk. Nevertheless the tools are potentially useful for guiding …
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Investigating best management practices to reduce selenium and nitrate contamination in a regional scale irrigated agricultural groundwater system: Lower Arkansas River Valley, southeastern Colorado
The Lower Arkansas River Valley (LARV) is well known for its rich agricultural production, with 109,000 ha of irrigated area. Due to agricultural production extending for more than 100 years, the LARV now faces challenges of soil salinity, water logging from shallow groundwater tables, and a high …
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An evaluation of historical fire occurrence, drought, and the El Niño southern oscillation in the greater Cross Timbers region, U.S.A
… from drought and climate oscillations at the regional level to fuel availability and land-use at the site level. This study evaluates and explores the extent, frequency, seasonality, and severity of fires across the Cross Timbers, and through time. Historical fire events were reconstructed at …
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An evaluation of indicators of prospectivity and potential mapping of porphyry deposits in middle and southern British Columbia by a GIS study of regional geochemical and other geoscientific data.
… maps for prospecting porphyry deposits at the regional scale. The study area covers certain geological units in southern and middle British Columbia (from 48°N to 56°N) that are known for hosting major porphyry deposits. Four main types of data were used in this thesis, namely …
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A Framework for Evaluating Thaw Settlement in Permafrost Regions
… across different project stages and spatial scales. The research addresses key knowledge gaps by improving thaw strain estimation at the site scale and developing a new approach for assessing susceptibility to thaw strain at the regional scale. The study began with the compilation and …
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'Islands' in an island: multiscale effects of forest fragmentation on lowland forest birds in Taiwan
… The goal of this study is to explore the multiscale impacts of forest fragmentation on species richness and community composition of lowland-forest birds in Taiwan. At a regional scale, Island Biogeography Theory was applied to examine area and isolation effects on species richness of …
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