The social costs of aviation CO2 and contrail cirrus [PDF]
Nature CommunicationsThe radiative forcing (RF) of contrail cirrus is substantial, though short-lived, uncertain, and heterogeneous, whereas the RF from CO₂ emissions is long-term and more predictable.
Daniel J. A. Johansson +5 more
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Contrail Modeling and Simulation [PDF]
Annual Review of Fluid Mechanics, 2016 There is large uncertainty in the radiative forcing induced by aircraft contrails, particularly after they transform to cirrus. It has recently become possible to simulate contrail evolution for long periods after their formation. We review the main physical processes and simulation efforts in the four phases of contrail evolution, namely the jet ...
Roberto Paoli, Karim Shariff
exaly +2 more sources
The climate opportunities and risks of contrail avoidance [PDF]
Nature CommunicationsNavigational contrail avoidance presents an opportunity for rapid reduction in aviation-attributable warming. Here, we use the Aviation Climate and Air Quality Impacts model to evaluate the global temperature changes associated with contrail avoidance ...
Jessie R. Smith +8 more
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Numerical simulations of contrail-to-cirrus transition – Part 2: Impact of initial ice crystal number, radiation, stratification, secondary nucleation and layer depth [PDF]
Atmospheric Chemistry and Physics, 2010 Simulations of contrail-to-cirrus transition were performed with an LES model. In Part 1 the impact of relative humidity, temperature and vertical wind shear was explored in a detailed parametric study.
S. Unterstrasser, K. Gierens
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Linear contrail and contrail cirrus properties determined from satellite data
Geophysical Research Letters, 2013 AbstractThe properties of contrail cirrus clouds are retrieved through analysis of Terra and Aqua Moderate Resolution Imaging Spectroradiometer data for 21 cases of spreading linear contrails. For these cases, contrail cirrus enhanced the linear contrail coverage by factors of 2.4–7.6 depending on the contrail mask sensitivity.
Patrick Minnis +2 more
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Impacts of multi-layer overlap on contrail radiative forcing [PDF]
Atmospheric Chemistry and Physics, 2021 Condensation trails (“contrails”) which form behind aircraft are estimated to cause on the order of 50 % of the total climate forcing of aviation, matching the total impact of all accumulated aviation-attributable CO2.
I. Sanz-Morère +8 more
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Revisiting Contrail Ice Formation: Impact of Primary Soot Particle Sizes and Contribution of Volatile Particles [PDF]
Environmental Science & TechnologyFangqun Yu, Bernd Kärcher
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Air traffic and contrail changes over Europe during COVID-19: a model study [PDF]
Atmospheric Chemistry and Physics, 2021 The strong reduction of air traffic during the COVID-19 pandemic provides a unique test case for the relationship between air traffic density, contrails, and their radiative forcing of climate change.
U. Schumann +11 more
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Aviation Contrail Cirrus and Radiative Forcing Over Europe During 6 Months of COVID‐19 [PDF]
Geophysical Research Letters, 2021 Ulrich Schumann, Christiane Voigt
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Contrail formation within cirrus: ICON-LEM simulations of the impact of cirrus cloud properties on contrail formation [PDF]
Atmospheric Chemistry and Physics, 2022 Contrail formation within natural cirrus introduces large perturbations in cirrus ice crystal number concentrations, leading to modifications in cirrus microphysical and optical properties.
P. Verma, P. Verma, U. Burkhardt
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