Colloquium: Liam Megill (FPP)

05 juli 2022 14:00 - Locatie: LECTURE ROOM D, FACULTY OF AEROSPACE ENGINEERING, KLUYVERWEG 1, DELFT | Zet in mijn agenda

Analysis of Climate Metrics for Aviation

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 impact of aviation, climate metrics are needed, which equate the environmental impact of various emissions and effects. The standard climate metric used in international climate policy is the Global Warming Potential (GWP). However, the GWP has been heavily criticised and there is currently no consensus on which climate metric should be used in aviation policy.

This work 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) determining 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 policy, but that the choice of time horizon remains subjective.

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