Spatial and Temporal Distribution of Carbon Emissions from Airport Mobile Sources

This paper calculates carbon emissions from each mobile source based on the baseline emissions model of International Civil Aviation Organization (ICAO) and Emissions and Dispersion Modeling System (EDMS), taking a civil transport airport in South China as an example. This paper analyzes the time-varying characteristics of 24-h carbon emissions in a day and analyzes the spatial distribution characteristics of peak-hour carbon emissions from mobile sources considering the actual taxiing paths of aircrafts. The airport’s carbon emissions from mobile sources reached 175,700 tons in 2019. Due to the impact of COVID-19 pandemic, the average annual carbon emissions from 2020 to 2022 were 115,600 tons, down 34.21% compared with 2019. The spatial analysis shows that climbing and approaching, apron, take-off, and taxiing areas accounted for 56.23%, 16.40%, 14.79%, and 12.58% of carbon emissions based on the actual taxiing time, respectively. The carbon emissions of taxiing mode would be overestimated on default time.