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
doaj +1 more source
Simulations of Contrail Optical Properties and Radiative Forcing for Various Crystal Shapes [PDF]
, 2011 The aim of this study is to investigate the sensitivity of radiative-forcing computations to various contrail crystal shape models. Contrail optical properties in the shortwave and longwave ranges are derived using a ray-tracing geometric method and ...
Markowicz, Krzysztof M. +1 more
core +1 more source
Journal of Geophysical Research: Atmospheres, 2023 The radiative effects of the large‐scale air traffic slowdown during April and May 2020 due to the international response to the COVID‐19 pandemic are estimated by comparing the coverage (CC), optical properties, and radiative forcing of persistent ...
D. Duda +5 more
semanticscholar +1 more source
Effects of atmospheric stratification and jet position on the properties of early aircraft contrails
Physical Review Fluids, 2023 —The net impact of aircraft contrails on global climate change is a matter of controversy today. Among the many parameters potentially influencing this issue, the role played by the aircraft wake has received only little attention so far.
Pierre Saulgeot +4 more
semanticscholar +1 more source
Influence of Different Altitudes on the Solid Rocket Contrail Formation in the Near Field
International Journal of Aerospace Engineering, 2023 Detecting the infrared characteristics of the contrails is a reasonable approach to tracing the rocket, and the particle properties of the contrails are the basis of the infrared analysis.
Peigao Zeng +4 more
doaj +1 more source
The climate impact of COVID-19-induced contrail changes [PDF]
Atmospheric Chemistry and Physics, 2021 The COVID-19 pandemic caused significant economic disruption in 2020 and severely impacted air traffic. We use a state-of-the-art Earth system model and ensembles of tightly constrained simulations to evaluate the effect of the reductions in aviation ...
A. Gettelman, C.-C. Chen, C. G. Bardeen
doaj +1 more source
Molecular contrails – triggered contraction by passages of massive objects through molecular clouds [PDF]
, 2021 We study the effects of passages of compact objects such as stars, star clusters and black holes through molecular clouds, and propose that the gravitational interaction between the compact object and the ambient gas can lead to the formation of thin and
Guangxing Li, Xun Shi
semanticscholar +1 more source
A methodology for in-situ and remote sensing of microphysical and radiative properties of contrails as they evolve into cirrus [PDF]
Atmospheric Chemistry and Physics, 2012 Contrails and especially their evolution into cirrus-like clouds are thought to have very important effects on local and global radiation budgets, though are generally not well represented in global climate models.
H. M. Jones +13 more
doaj +1 more source
Reduced ice number concentrations in contrails from low aromatic biofuel blends
Atmospheric Chemistry and Physics, 2021 . Sustainable aviation fuels can reduce contrail ice numbers and radiative forcing by contrail cirrus. We measured apparent ice emission indices for fuels with varying aromatic content at altitude ranges of 9.1–9.8 km and 11.4–11.6 km.
Tiziana Bräuer +10 more
semanticscholar +1 more source
An upgraded estimate of the radiative forcing of cryoplane contrails
Meteorologische Zeitschrift, 2005 The radiative forcing of contrails is quantified for a hypothetical fleet of cryoplanes in comparison with a conventional aircraft fleet. The differences in bulk optical properties between conventional and cryoplane contrails are determined by numerical ...
Susanne Marquart +3 more
doaj +1 more source