Global radiative forcing from contrail cirrus [PDF]
Aviation makes a significant contribution to anthropogenic climate forcing. The impacts arise from emissions of greenhouse gases, aerosols and nitrogen oxides, and from changes in cloudiness in the upper troposphere.
Burkhardt, Ulrike, Kärcher, Bernd
core +6 more sources
Contrail formation within cirrus: ICON-LEM simulations of the impact of cirrus cloud properties on contrail formation [PDF]
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
doaj +3 more sources
Contrail cirrus radiative forcing for future air traffic [PDF]
The climate impact of air traffic is to a large degree caused by changes in cirrus cloudiness resulting from the formation of contrails. Contrail cirrus radiative forcing is expected to increase significantly over time due to the large projected ...
L. Bock, U. Burkhardt
doaj +3 more sources
On the Life Cycle of Individual Contrails and Contrail Cirrus [PDF]
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.
openaire +5 more sources
Aviation effects on already-existing cirrus clouds. [PDF]
Determining the effects of the formation of contrails within natural cirrus clouds has proven to be challenging. Quantifying any such effects is necessary if we are to properly account for the influence of aviation on climate. Here we quantify the effect
Tesche M, Achtert P, Glantz P, Noone KJ.
europepmc +5 more sources
On the Lifetimes of Persistent Contrails and Contrail Cirrus
Abstract 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
openaire +3 more sources
Linear contrail and contrail cirrus properties determined from satellite data
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 +9 more
openaire +3 more sources
Numerical simulations of contrail-to-cirrus transition – Part 2: Impact of initial ice crystal number, radiation, stratification, secondary nucleation and layer depth [PDF]
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
doaj +2 more sources
Quantification of the radiative forcing of contrails embedded in cirrus clouds [PDF]
Aviation leads to the emission of CO2 but also exerts non-CO2 effects on climate, such as line-shaped condensation trails (contrails) and contrail cirrus that are known to cause warming. However, little is known about the climate effect of contrails that
Torsten Seelig +3 more
doaj +2 more sources
In-situ observations of young contrails – overview and selected results from the CONCERT campaign [PDF]
Lineshaped contrails were detected with the research aircraft Falcon during the CONCERT – CONtrail and Cirrus ExpeRimenT – campaign in October/November 2008.
C. Voigt +31 more
doaj +5 more sources

