Results 11 to 20 of about 480 (177)
On the Lifetimes of Persistent Contrails and Contrail Cirrus [PDF]
Journal of Geophysical Research: AtmospheresAbstract Prediction of contrail cirrus persistence is highly problematic for models, in part due to a poor representation of intertwined microphysical and dynamical processes controlling contrail evolution in large‐scale ice‐supersaturated areas.
Bernd Kärcher, Milena Corcos
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A climatology of formation conditions for aerodynamic contrails [PDF]
Atmospheric Chemistry and Physics, 2013 Aircraft at cruise levels can cause two kinds of contrails, the well known exhaust contrails and the less well-known aerodynamic contrails. While the possible climate impact of exhaust contrails has been studied for many years, research on ...
K. Gierens, F. Dilger
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Remote Sensing, 2023 This study presents a novel approach for the detection of contrails in satellite imagery using a convolutional neural network (CNN). Contrails are important to monitor because their contribution to climate change is uncertain and complex.
Jay P. Hoffman +3 more
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Bulletin of the American Meteorological Society, 2010 This article reviews the current state of understanding of the science of contrails: 1) how they are formed, 2) their microphysical properties as they evolve into contrail cirrus and whether their microphysical properties can be distinguished from natural cirrus, and 3) the ice-nucleating properties of soot aerosols and whether these aerosols can ...
Heymsfield, A +5 more
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Thin and subvisible cirrus and contrails in a subsaturated environment [PDF]
Atmospheric Chemistry and Physics, 2011 The frequency of occurrence of cirrus clouds and contrails, their life time, ice crystal size spectra and thus their radiative properties depend strongly on the ambient distribution of the relative humidity with respect to ice (RH<sub>ice< ...
M. Kübbeler +15 more
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On the Life Cycle of Individual Contrails and Contrail Cirrus [PDF]
Meteorological Monographs, 2017 Abstract The life cycle of individual (initially line shaped) contrails behind aircraft and of contrail cirrus (aged contrails mixed with other ice clouds) is described. The full contrail life cycle is covered, from ice formation for given water, heat, and particulate emissions; to changes in the jet, wake, and dispersion phases; through
Schumann, Ulrich, Heymsfield, Andrew J.
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Ground-based observations for the validation of contrails and cirrus detection in satellite imagery [PDF]
Atmospheric Measurement Techniques, 2010 Contrails and additional cirrus clouds caused by air traffic have a potential warming effect due to their optical properties and their location in the upper troposphere.
H. Mannstein, A. Brömser, L. Bugliaro
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Long-term upper-troposphere climatology of potential contrail occurrence over the Paris area derived from radiosonde observations [PDF]
Atmospheric Chemistry and Physics, 2023 Condensations trails (or contrails) that form behind aircraft have been of climatic interest for many years; yet, their radiative forcing is still uncertain.
K. Wolf +3 more
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Dehydration effects from contrails in a coupled contrail–climate model [PDF]
Atmospheric Chemistry and Physics, 2015 The uptake of water by contrails in ice-supersaturated air and the release of water after ice particle advection and sedimentation dehydrates the atmosphere at flight levels and redistributes humidity mainly to lower levels.
U. Schumann +4 more
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Global Modeling of the Contrail and Contrail Cirrus Climate Impact [PDF]
Bulletin of the American Meteorological Society, 2010 Despite considerable technological advances, aviation impacts on global climate are significant and may constitute a future constraint on the continued growth of air travel. The most important but least understood component in aviation climate impact assessments are contrails, which form as line-shaped ice clouds (linear contrails) and transform into ...
Burkhardt, Ulrike +2 more
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