Results 21 to 30 of about 15,587 (203)

Mitigating the contrail cirrus climate impact by reducing aircraft soot number emissions [PDF]

Npj Climate and Atmospheric Science, 2018
Contrail cirrus are a major component of the climate forcing due to air traffic. For a given contrail cirrus cover, ice water content and ice crystal shape, their impact on radiation is dependent on the number and size of ice crystals.
Ulrike Burkhardt, Lisa Böck, A Bier
exaly   +3 more sources

Climate impact of contrail cirrus [PDF]

, 2023
Der Luftverkehr ist in den letzten Jahrzehnten exponentiell angewachsen und spielt deshalb eine wichtige Rolle in der Diskussion über zukünftige Strategien zur Reduzierung von Klimaänderungen. Basierend auf Strahlungsantrieben liefern Kondensstreifen-Zirren vermutlich den größten Beitrag zur Klimawirkung des Luftverkehrs und übertreffen damit die CO2 ...
Bickel, Marius
core   +4 more sources

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

Atmospheric 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, K. Van Weverberg, K. Van Weverberg, K. Van Weverberg, C. J. Morcrette, C. J. Morcrette, W. Feng, W. Feng, K. Furtado, K. Furtado, P. R. Field, P. R. Field, C.-C. Chen, A. Gettelman, P. M. Forster, D. R. Marsh, A. Rap   +16 more
doaj   +2 more sources

Impact of Parametrizing Microphysical Processes in the Jet and Vortex Phase on Contrail Cirrus Properties and Radiative Forcing

Journal of Geophysical Research D: Atmospheres, 2022
Contrail ice nucleation and ice crystal loss during the vortex phase control ice crystal numbers in young contrails and can have a strong impact on the properties and the life cycle of contrail cirrus. For current soot number emissions, ice nucleation is
A Bier, Ulrike Burkhardt
exaly   +2 more sources

Modelling contrail cirrus using a double-moment cloud microphysics scheme in the UK Met Office Unified Model [PDF]

Atmospheric Chemistry and Physics
Contrail cirrus is the largest contributor to aviation effective radiative forcing (ERF), but remains highly uncertain (∼ 70 %). Recent research has highlighted the critical role of cloud microphysical schemes in contrail cirrus climate modelling.
W. Zhang, P. R. Field, P. R. Field, K. Van Weverberg, K. Van Weverberg, P. M. Forster, C. J. Morcrette, C. J. Morcrette, A. Rap   +8 more
doaj   +2 more sources

Factors controlling contrail cirrus optical depth [PDF]

Atmospheric Chemistry and Physics, 2009
Aircraft contrails develop into contrail cirrus by depositional growth and sedimentation of ice particles and horizontal spreading due to wind shear.
B. Kärcher, U. Burkhardt, S. Unterstrasser, P. Minnis   +3 more
doaj   +2 more sources

Radiative Effect of Two Contrail Cirrus Outbreaks Over Western Europe Estimated Using Geostationary Satellite Observations and Radiative Transfer Calculations

Geophysical Research Letters, Volume 51, Issue 7, 16 April 2024.
Estimation of the perturbation to the Earth's energy budget by contrail outbreaks is required for estimating the climate impact of aviation and verifying the climate benefits of proposed contrail avoidance strategies such as aircraft rerouting.
Xinyue Wang, Kevin Wolf, O. Boucher, N. Bellouin   +3 more
semanticscholar   +2 more sources

The temporal evolution of a long‐lived contrail cirrus cluster: Simulations with a global climate model

Journal of Geophysical Research D: Atmospheres, 2016
The representation of contrail cirrus in climate models has advanced in the last years tremendously. Nevertheless, uncertainties in particular regarding the representation of contrail microphysics still remain.
Lisa Böck, Ulrike Burkhardt
exaly   +3 more sources

Most long-lived contrails form within cirrus clouds with uncertain climate impact [PDF]

Nature Communications
Contrail-cirrus is considered the most important component of aviation-induced climate impact. However, a reliable assessment requires better understanding of their radiative effects.
Andreas Petzold, Neelam F. Khan, Yun Li, Peter Spichtinger, Susanne Rohs, Susanne Crewell, Andreas Wahner, Martina Krämer   +7 more
doaj   +2 more sources

Modeling the Impact of Alternative Fuels and Hydrogen Propulsion on Contrail‐Cirrus: A Parameter Study

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 2, 28 January 2026.
Line‐shaped contrails formed behind aircraft can evolve into broadly spread and long‐living cirrus clouds under favorable conditions. These contrail‐cirrus contribute significantly to the aviation‐induced radiative forcing.
A. Lottermoser, S. Unterstrasser
semanticscholar   +2 more sources