Results 31 to 40 of about 15,587 (203)
Meteorologische Zeitschrift, 2017 This paper presents the results from numerical experiments of the early phase of contrail-cirrus formation using a limited set of fully three-dimensional, high-resolution large-eddy-simulations.
Roberto Paoli +4 more
doaj +3 more sources
Journal of Geophysical Research D: Atmospheres, 2017 The atmospheric state, aircraft emissions, and engine properties determine formation and initial properties of contrails. The synoptic situation controls microphysical and dynamical processes and causes a wide variability of contrail cirrus life cycles ...
A Bier, Ulrike Burkhardt, Lisa Böck
exaly +2 more sources
How to avoid contrail cirrus [PDF]
, 2007 The impact of air traffic on climate is dominated by the contribution of aircraft induced cirrus. Hence, any mitigation strategy has to consider the production of contrails and cirrus clouds. Here we use operational radiosonde data with high vertical resolution to estimate the effect of a small change in flight altitudes to avoid flight in ice ...
Mannstein, Hermann +2 more
openaire +2 more sources
Quantification of the radiative forcing of contrails embedded in cirrus clouds [PDF]
Nature CommunicationsAviation 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
Contrails, contrail cirrus, and ship tracks [PDF]
, 2006 The following text is an enlarged version of the conference tutorial lecture on contrails, contrail cirrus, and ship tracks. I start with a general introduction into aerosol effects on clouds. Contrail formation and persistence, aviation’s share to cirrus trends and ship tracks are treated then.
Gierens, Klaus Martin
openaire +3 more sources
A contrail cirrus prediction tool [PDF]
, 2010 An new “Contrail Cirrus Prediction Tool” (CoCiP) has been developed to simulate contrail cirrus resulting from a single flight as well as from a fleet of cruising aircraft, flight by flight, regionally or globally. The method predicts contrail cirrus for given air traffic and weather prediction data. The method describes the life cycle of each contrail
Schumann, Ulrich
openaire +2 more sources
Contrail formation within cirrus: high-resolution simulations using ICON-LEM [PDF]
Atmospheric Chemistry and Physics, 2021 . Contrail formation within natural cirrus introduces large perturbations in cirrus ice crystal number concentrations leading to modifications in cirrus microphysical and optical properties. The number of contrail ice crystals formed in an aircraft plume
P. Verma, U. Burkhardt
semanticscholar +4 more sources
How to avoid contrail cirrus [PDF]
, 2006 Aircraft induced cirrus clouds have a major effect on climate. These clouds are triggered by air-traffic, if the ambient air is super-saturated with respect to ice. Operational radiosonde data with high vertical resolution is used to estimate the effect of small changes in flight altitudes on contrail and cirrus formation.
Mannstein, Hermann +3 more
openaire +2 more sources
Reassessing properties and radiative forcing of contrail cirrus using a climate model
Journal of Geophysical Research D: Atmospheres, 2016 Lisa Böck, Ulrike Burkhardt
exaly +2 more sources
Radiative heating in contrail cirrus [PDF]
, 2010 We developed an effective model (within our contrail cirrus prediction model, CoCiP) which computes the radiative heating rate in both the longwave and shortwave spectral ranges. The model parameterizes the impact of radiative heating on turbulent mixing and sublimation of ice particles in a thin cirrus layer.
Schumann, Ulrich +3 more
openaire +2 more sources