Institut für Physik der Atmosphäre (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR Oberpfaffenhofen), 82234 Wessling, Germany.
Nat Commun. 2018 May 8;9(1):1824. doi: 10.1038/s41467-018-04068-0.
Aircraft-produced contrail cirrus clouds contribute to anthropogenic climate change. Observational data sets and modelling approaches have become available that clarify formation pathways close to the source aircraft and lead to estimates of the global distribution of their microphysical and optical properties. While contrail cirrus enhance the impact of natural clouds on climate, uncertainties remain regarding their properties and lifecycle. Progress in representing aircraft emissions, contrail cirrus and natural cirrus in global climate models together with tighter constraints on the sensitivity of the climate system will help judge efficiencies of and trade-offs between mitigation options.
飞机产生的凝结尾迹卷云促成了人为气候变化。现已有观测数据集和建模方法可供使用，这些方法阐明了飞机附近的形成途径，并对其微物理和光学特性的全球分布进行了估算。虽然凝结尾迹卷云增强了自然云对气候的影响，但它们的特性和生命周期仍存在不确定性。在全球气候模型中更好地代表飞机排放物、凝结尾迹卷云和自然卷云，并对气候系统的敏感性施加更严格的限制，将有助于判断缓解措施的效率和权衡取舍。
