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.
Results
Showing 1 to 20 of 34 for “"Aviation emissions"”.
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Plume to global-scale atmospheric impacts of aviation emissions
Commercial aircraft combustion emissions impact the atmospheric composition, alter the Earth’s climate by accounting for ~4% of anthropogenic radiative forcing [72, 49] and affect surface air quality, causing an estimated ~16,000 premature mortalities per year [7, 28]. These environmental impacts …
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An assessment of the health implications of aviation emissions regulations
An exploration of the health implications of aviation emissions regulations is made by assessing the results of a study of aviation's effects on United States air quality mandated by the Energy Policy Act of 2005. The Energy Policy Act study results estimated that aviation is responsible for 160 …
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Aviation and climate change: a focus on Zambia’s international aviation emissions.
The aviation industry is one of the fastest growing sources of greenhouse gases (GHGs) emissions and accounts for about two percent of the global GHGs emissions. This study therefore endeavoured to assess on how a low carbon aviation industry could be enhanced in Zambia. Thus the study estimated …
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Aviation and climate change: a focus on Zambia’s international aviation emissions.
The aviation industry is one of the fastest growing sources of greenhouse gases (GHGs) emissions and accounts for about two percent of the global GHGs emissions. This study therefore endeavoured to assess on how a low carbon aviation industry could be enhanced in Zambia. Thus the study estimated …
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Study on impacts of aviation emissions and related dynamics and chemistry
The continuing increase in demand for commercial aviation transport raises questions about the effects of resulting emissions on the environment. The upper troposphere and lower stratosphere (UTLS), where most of aviation emissions occur, plays an important role in climate and atmospheric …
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Adjoint sensitivity analysis of the intercontinental impacts of aviation emissions on air quality and health
… to particulate matter caused by aircraft emissions. Unlike previous studies that focus on the regional impacts from the aircraft emissions below 3,000 feet, this thesis studies the impact from emissions at all altitudes and across continents on increasing particulates in a receptor region, …
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The impacts of aviation emissions on human health through changes in air quality and UV irradiance
… The air transportation network may be limited by aviation's growing environmental impacts. These impacts take the form of climate impacts, noise impacts, and health impacts, the latter of which are addressed in this thesis. Aircraft emissions released into the atmosphere have an impact on human …
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Sensitivity of the ozone layer, climate, and public health to changes in the location of aviation emissions
Aviation’s impact on the ozone layer, climate, and air quality varies based on the location of emissions. Changes from subsonic aircraft emissions due to regional growth, and the potential re-introduction of supersonic transport flying in the stratosphere present new scenarios that regulations do …
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Historical and future trends in aircraft performance, cost, and emissions
… and the potential impacts of aircraft engine emissions on the global atmosphere have motivated the industry, scientific community, and international governments to seek various emissions reduction options. Despite the efforts to understand and mitigate the impacts of aviation emissions, it …
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The air quality and health impacts of aviation in Asia
Aviation in Asia is growing more rapidly than other regions around the world. Adverse health impacts of aviation are linked to an increase in the concentration of particulate matter smaller than 2.5 [mu]m in diameter (PM2.5). This thesis aims to quantify the regional-scale health impacts of …
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The air quality impact of aviation in future-year emissions scenarios
The rapid growth of aviation is critical to the world and US economy, and it faces several important challenges among which lie the environmental impacts of aviation on noise, climate and air quality. The first objective of this thesis addresses the requirements of section 753 of the US Energy …
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Environmental impact assessment of commercial aircraft operations in the United States
… of, and identifying requirements for, the FAA Aviation-environmental Portfolio Management Tool (APMT), an integrated assessment capability for US regulatory decision-making. Non-aircraft sources have been found to dictate marginal emissions costs. The implication is that aviation emissions …
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The Unique Challenges of the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA)
… disputes. This concern is because they emit emissions like those produced by the combustion of fossil fuels. Consequently, the aviation industry is recognized as one of the top ten emitters in the world, with emissions expected to soar. As the emissions from the industry begin to rise, the …
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Human health impacts of high altitude emissions
… cancer. However, the focus has been on surface emissions, and the contribution of high altitude emissions to these issues is rarely examined. In this thesis, potential links are investigated between high altitude emissions and damages or benefits to human health via photochemical effects. …
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Modeling aviation's global emissions, uncertainty analysis, and applications to policy
(cont.) fuel burn results below 3000 ft. For emissions, the emissions indices were the most influential uncertainties for the variance in model outputs. By employing the model, this thesis examined three policy options for mitigating aviation emissions. More stringent engine certification …
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Satellite-based detection of contrails using deep learning
… half of all climate warming resulting from aviation emissions, but uncertainty in coverage is high [12, 2]. These artificial clouds form behind aircraft and trap outgoing infrared radiation, leading to a warming effect [12, 3, 28, 40, 3]. With aviation forecast to contribute up to 15% of …
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Technical and environmental assessment of all-electric 180-passenger commercial aircraft
Aviation emissions contribute to climate change, and all-electric aircraft offer an opportunity for zero in-flight emissions. Over the past decade, more than 50 all-electric conceptual, experimental, and commercial aircraft have been researched, with a particular focus on light aircraft. These …
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A general equilibrium analysis of climate policy for aviation
Regulation of aviation's contribution to the global problem of climate change is increasingly likely in the near term, but the method agreed upon by most economists-a multi-sectoral market-based approach such as a cap and trade system-is opposed by industry stakeholders. An efficient economy-wide …
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Environmental Impacts of Future Aviation Propulsion Systems
Aviation is an integral part of modern society and economy. A fundamental challenge facing the aviation sector in the coming decades is to enable the 3.8% projected growth in air traffic per year and the associated benefits while simultaneously reducing aviation’s impact on the environment in terms …
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Aircraft emissions reductions through improved operational performance : challenges, opportunities and policy implications
Aircraft are a significant source of emissions whose impact on local air quality and global climate change is expected to increase as the aviation industry continues to grow. Operational improvements are an attractive alternative for emissions reductions, because in addition to the environmental …
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