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Aircraft clouds: from chemtrail pseudoscience to the science of contrails [PDF]

open access: yes, 2017
The most frequent statements and arguments found in pseudoscience websites and forums supporting the existence of so-called aircraft chemtrails can be refuted with a scientific explanation of the processes resulting in the formation of condensation or ...
Costa, Marcel   +2 more
core   +3 more sources

Aircraft type influence on contrail properties [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
The investigation of the impact of aircraft parameters on contrail properties helps to better understand the climate impact from aviation. Yet, in observations, it is a challenge to separate aircraft and meteorological influences on contrail formation ...
P. Jeßberger   +8 more
doaj   +1 more source

Long-term upper-troposphere climatology of potential contrail occurrence over the Paris area derived from radiosonde observations [PDF]

open access: yesAtmospheric 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

Numerical simulations of homogeneously nucleated natural cirrus and contrail-cirrus. Part 2: Interaction on local scale

open access: yesMeteorologische Zeitschrift, 2017
The interaction of contrail-cirrus and natural cirrus formed by homogeneous nucleation is studied over up to ten hours by means of a LES model equipped with a Lagrangian ice microphysics module.
Simon Unterstrasser   +3 more
doaj   +1 more source

Benchmarking and improving algorithms for attributing satellite-observed contrails to flights [PDF]

open access: yesAtmospheric Measurement Techniques
Condensation trail (contrail) cirrus clouds cause a substantial fraction of aviation's climate impact. One proposed method for the mitigation of this impact involves modifying flight paths to avoid particular regions of the atmosphere that are conducive ...
A. Sarna   +6 more
doaj   +1 more source

Towards Determining the Contrail Cirrus Efficacy

open access: yesAerospace, 2021
Contrail cirrus has been emphasized as the largest individual component of aircraft climate impact, yet respective assessments have been based mainly on conventional radiative forcing calculations.
Michael Ponater   +3 more
doaj   +1 more source

Impact of host climate model on contrail cirrus effective radiative forcing estimates [PDF]

open access: yesAtmospheric Chemistry and Physics
Estimates of aviation effective radiative forcing (ERF) indicate that contrail cirrus is currently its largest contributor, although with a substantial associated uncertainty of ∼ 70 %.
W. Zhang   +16 more
doaj   +1 more source

Northern Hemisphere contrail properties derived from Terra and Aqua MODIS data for 2006 and 2012 [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
Linear contrail coverage, optical property, and radiative forcing data over the Northern Hemisphere (NH) are derived from a year (2012) of Terra and Aqua Moderate-resolution Imaging Spectroradiometer (MODIS) imagery and compared with previously published
D. P. Duda   +6 more
doaj   +1 more source

Estimated contrail frequency and coverage over the contiguous United States from numerical weather prediction analyses and flight track data

open access: yesMeteorologische Zeitschrift, 2005
Estimates of contrail frequency and coverage over the contiguous United States (CONUS) are developed using hourly meteorological analyses from the Rapid Update Cycle (RUC) numerical weather prediction model and commercial air traffic data for 2 months ...
David P. Duda   +2 more
doaj   +1 more source

On contrail climate sensitivity [PDF]

open access: yesGeophysical Research Letters, 2005
In equilibrium climate change simulations with a global climate model we estimate the climate sensitivity parameter to contrail cirrus to be 0.43 K/(Wm−2), only about 60% of the corresponding value for a CO2 forcing. The spatial pattern of the surface temperature response is much smoother than the forcing pattern of contrails with little correlation ...
Ponater, M.   +3 more
openaire   +2 more sources

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