コペンハーゲン空港における2030年のターゲットSAF利用の気候緩和ポテンシャルの評価

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a modeling framework for optimizing SAF allocation considering contrail effects, useful for further research on aviation climate impact.

🏢実務担当者:Airlines and airports can use the targeting approach to enhance the climate benefit of limited SAF supplies.

🏛政策担当者:Informs policy design for SAF mandates by demonstrating the potential of targeted allocation to increase climate effectiveness.

Abstract. Sustainable aviation fuels (SAFs) reduce CO2 life-cycle emissions and the climate effect of contrail-induced cirrus cloudiness (CiC). In contrast to the CO2 emissions of air traffic, the CiC climate effect varies strongly from flight to flight. Hence, SAF allocation to specific flights can maximise climate mitigation efforts for limited amounts of SAF, especially as long as SAF supply is meagre. In this study, we assess the climate-optimal SAF distribution for the flights departing from Copenhagen Airport (CPH) and determine the potential climate benefit achievable through this measure. The study particularly targets year 2030, when the 6 % SAF mandate by ReFuelEU Aviation is expected to allow large climate benefits through targeted SAF use and time still remains for infrastructural adaptions. For this, we use the AirClim model with a refined SAF parameterisation that considers non-volatile particulate matter (nvPM) reduction dependency on SAF blending ratio. We are allocating SAF to those flights that have the largest CiC climate effect to fuel use ratio in a climatological sense. In our scenario simulations, the additional climate benefit through targeted SAF use is quantified and the tradeoff between larger SAF blending ratios for less flights as a consequence of the limited SAF amount is analysed. Targeted use of the 6 % SAF can enhance the role of CiC regarding climate benefit of SAF from 20 % (uniform use) to almost 50 % (targeted use) when the optimal SAF blending ratio is chosen. In our results for CPH in 2030, this leads to a total additional reduction of 60 kt CO2e. However, the results show large uncertainties and strongly vary with choice of climate metric as well as with focus on long-term or short-term climate goals and depend on the specific flight plan. In addition, we quantify how much of the additional climate benefit would be sacrificed if a semi-optimal flight selection was chosen that potentially could reduce logistical cost by decreasing the number of SAF allocated flight routes. The results of this study set ground for cost-benefit analyses that take into account all airport operations associated with targeted SAF use at Copenhagen Airport.

• openalex https://doi.org/10.5194/jecats-2026-15first seen 2026-09-04 05:00:40