Aircraft campaigns refer to coordinated, large-scale efforts to collect data on atmospheric processes using aircraft as a platform. These campaigns are typically focused on specific research objectives, such as studying air quality, climate change, or weather patterns. Researchers use specialized instruments and sensors on board the aircraft to gather data on various atmospheric properties, such as temperature, humidity, and aerosol concentrations. Aircraft campaigns often involve multiple aircraft flying in formation to sample different regions of the atmosphere simultaneously, providing a more comprehensive understanding of atmospheric processes. The data collected during these campaigns can then be used to improve climate models, forecast models, and our overall understanding of Earth's atmosphere.