Print Email Facebook Twitter Analysis of Climate Metrics for Aviation Title Analysis of Climate Metrics for Aviation Author Megill, Liam (TU Delft Aerospace Engineering) Contributor Grewe, V. (mentor) Yin, F. (mentor) la Rocca, G. (mentor) Degree granting institution Delft University of Technology Programme Aerospace Engineering Date 2022-07-05 Abstract The aviation industry continues to contribute to anthropogenic climate change. Recent studies have shown that the total radiative forcing from aviation is around three times higher than that from CO2 alone. To account for the full effect of aviation, climate metrics are needed, which equate the environmental impact of various emissions and effects. However, there is currently no consensus on which climate metric should be used in aviation policy. This thesis systematically analyses existing climate metrics by: 1) comparing the responses to simple emission profiles; 2) investigating the sensitivity to changes in high-level aircraft design variables; 3) using a Monte Carlo simulation to determine inherent biases in metric calculation methods; and 4) evaluating the ability of climate metrics to estimate CO2-equivalent emissions. It is concluded that the Average Temperature Response (ATR) is the most appropriate climate metric for aviation climate policy. However, it is found that the time horizon remains a subjective choice that must be chosen carefully depending on the climate objective. The GWP*, a newly proposed climate metric, is concluded not to be suitable as a climate metric because of its high variability and secondary time horizon. Nevertheless, it is recommended to investigate the potential of using the GWP* as a Micro Climate Model to further climatic understanding. Subject Climate MetricAviation Emissions To reference this document use: http://resolver.tudelft.nl/uuid:9e84ee4d-af69-4550-8938-2ccf4caccb8c Part of collection Student theses Document type master thesis Rights © 2022 Liam Megill Files PDF MScThesis_ClimateMetrics_ ... Megill.pdf 11.7 MB Close viewer /islandora/object/uuid:9e84ee4d-af69-4550-8938-2ccf4caccb8c/datastream/OBJ/view