用地面相机追踪航迹云,精准定位其对应航班。
Contrail-to-Flight Attribution Using Ground Visible Cameras and Flight Surveillance Data
- 结合地面相机与飞行数据,构建可插拔的航迹云溯源框架
- 利用高时空分辨率影像实现刚形成时的航迹云识别与匹配
- 适用于气候研究者及航空减排政策制定者
航空的非二氧化碳影响,特别是航迹云,是其气候影响的重要来源。持久性航迹云可演变为类似卷云的云层,捕获向外辐射的红外能量,其辐射强迫可能与航空二氧化碳排放相当甚至更高。尽管物理模型可模拟航迹云的生成、演变与消散过程,但验证和校准这些模型需将观测到的航迹云与其生成航班关联,这一过程称为航迹云到航班的溯源。卫星溯源因空间和时间分辨率有限而困难,因航迹云常在被发现前已漂移变形。本文评估了一种替代方法:使用地面可见光相机,在航迹云刚形成时以高时空分辨率捕捉,此时航迹云仍纤细、线状且视觉明显。基于地面可见相机航迹云序列(GVCCS)数据集,我们提出一种模块化框架,将地面相机观测的航迹云与基于飞机监视和气象数据推导出的理论航迹云相匹配。该框架支持多种几何表示与距离度量,包含时间平滑机制,并允许灵活的概率分配策略。本工作建立了强基线并为未来航迹云溯源研究提供了可扩展的模块化框架。
原文摘要 · Abstract (English)
Aviation's non-CO2 effects, particularly contrails, are a significant contributor to its climate impact. Persistent contrails can evolve into cirrus-like clouds that trap outgoing infrared radiation, with radiative forcing potentially comparable to or exceeding that of aviation's CO2 emissions. While physical models simulate contrail formation, evolution and dissipation, validating and calibrating these models requires linking observed contrails to the flights that generated them, a process known as contrail-to-flight attribution. Satellite-based attribution is challenging due to limited spatial and temporal resolution, as contrails often drift and deform before detection. In this paper, we evaluate an alternative approach using ground-based cameras, which capture contrails shortly after formation at high spatial and temporal resolution, when they remain thin, linear, and visually distinct. Leveraging the ground visible camera contrail sequences (GVCCS) dataset, we introduce a modular framework for attributing contrails observed using ground-based cameras to theoretical contrails derived from aircraft surveillance and meteorological data. The framework accommodates multiple geometric representations and distance metrics, incorporates temporal smoothing, and enables flexible probability-based assignment strategies. This work establishes a strong baseline and provides a modular framework for future research in linking contrails to their source flight.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。