Results 61 to 70 of about 480 (177)

Aircraft induced contrail cirrus over Europe

Meteorologische Zeitschrift, 2005
Condensation trails (contrails) and aircraft induced cirrus are nowadays a common feature at the mid latitude skies. Previously the impact of aircraft induced cirrus changes has been roughly estimated from observed decadal trends in cirrus cover but the ...
Hermann Mannstein, Ulrich Schumann
doaj   +1 more source

Contrail Observation Limitations Using Geostationary Satellites

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Contrails are a significant contributor to aviation's climate impact with an effective radiative forcing similar to that from aviation's CO2 ${\text{CO}}_{2}$ emissions, yet large uncertainties remain. Many observational contrail studies rely on data from a single sensor, in recent years increasingly from a geostationary imager, accepting ...
Marlene V. Euchenhofer, Prakash Prashanth, Sydney A. Parke, Sebastian D. Eastham, Ian A. Waitz   +4 more
wiley   +1 more source

A New Classification of In Situ and Anvil Cirrus Clouds Uncovers Their Properties and Interhemispheric Connections

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract The challenge of distinguishing convective anvil cirrus from in situ cirrus has long limited the quantification of their distinct roles in regulating upper‐tropospheric moisture and modulating Earth's energy budget. In this study, we address this ambiguity by introducing a physically constrained classification framework that applies advanced ...
Qingyu Mu, Jinming Ge, Jianping Huang, Xiaoyu Hu, Nan Peng, Yize Li, Meihua Wang, Jie Zhang, Ziyang Xu, Chi Zhang, Bochun Liu   +10 more
wiley   +1 more source

Sensitivity of radiative properties of persistent contrails to the ice water path [PDF]

Atmospheric Chemistry and Physics, 2012
The dependence of the radiative properties of persistent linear contrails on the variability of their ice water path is assessed in a two-stream radiative transfer model.
R. R. De León, M. Krämer, D. S. Lee, J. C. Thelen   +3 more
doaj   +1 more source

Flower‐Type Organized Trade‐Wind Cumulus: A Multi‐Day Lagrangian Large Eddy Simulation Intercomparison Study

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 10, October 2025.
Abstract Shallow cumulus cloud fields in subtropical marine trade wind environments, particularly over the tropical Atlantic Ocean, show distinct organizational patterns. Among these, Flower‐type clouds are characterized by expansive stratiform cloud patches surrounded by regions of scattered convection.
Girish Nigamanth Raghunathan, Peter Blossey, Steven Boeing, Leif Denby, Salima Ghazayel, Thijs Heus, Jan Kazil, Roel Neggers   +7 more
wiley   +1 more source

A Stylized Study of the Climate Response to Longwave and Shortwave Forcing at the Altitude of Aviation‐Induced Cirrus

Earth's Future, Volume 13, Issue 10, October 2025.
Abstract Several lines of evidence indicate that aviation‐induced cirrus clouds contribute to global warming. These clouds produce both longwave and shortwave radiative forcing, yet their climate impacts are not well understood. To improve understanding of the climate effects of radiative forcing associated with aviation‐induced cirrus clouds, we use ...
Tresa Mary Thomas, Lei Duan, Govindasamy Bala, Ken Caldeira   +3 more
wiley   +1 more source

Improved Simulation of Particle Number Concentrations Over the US: Integrating a Size‐Resolved Advanced Particle Microphysics Model Into CMAQ

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 16, 28 August 2025.
Abstract Accurate representation of aerosol size distributions and total number concentrations is critical for evaluating particle impacts on climate, clouds, and public health. An Advanced Particle Microphysics model (APM) has been integrated into the USEPA's Community Multiscale Air Quality Modeling System (CMAQ) to improve its representation of ...
Jingbo Mao, Fangqun Yu, Benjamin N. Murphy, Jingyu An, Yan Zhang, Gan Luo, Shao Lin, A. Gannet Hallar   +7 more
wiley   +1 more source

Powering aircraft with 100 % sustainable aviation fuel reduces ice crystals in contrails [PDF]

Atmospheric Chemistry and Physics
Powering aircraft by sustainable aviation fuels (SAFs) is a pathway to reduce the climate impact of aviation by lowering aviation lifecycle CO2 emissions and by reducing ice crystal numbers and radiative forcing from contrails.
R. S. Märkl, R. S. Märkl, C. Voigt, C. Voigt, D. Sauer, R. K. Dischl, R. K. Dischl, S. Kaufmann, T. Harlaß, V. Hahn, V. Hahn, A. Roiger, C. Weiß-Rehm, U. Burkhardt, U. Schumann, A. Marsing, M. Scheibe, A. Dörnbrack, C. Renard, M. Gauthier, P. Swann, P. Madden, D. Luff, R. Sallinen, T. Schripp, P. Le Clercq   +25 more
doaj   +1 more source

A New Prognostic Parameterization of Subgrid Ice Supersaturation and Cirrus Clouds in the ICOLMDZ AGCM

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 8, August 2025.
Abstract A new cirrus cloud parameterization for the ICOLMDZ atmospheric general circulation model (AGCM) is presented. Prognostic equations for cloud fraction, ice water content and cloudy water vapor are introduced, and the processes that affect these quantities are parameterized.
Audran Borella, Étienne Vignon, Olivier Boucher, Yann Meurdesoif, Laurent Fairhead   +4 more
wiley   +1 more source

Núvols d’avions: De la pseudociència dels ‘chemtrails’ a la ciència dels ‘contrails’

Mètode Science Studies Journal: Annual Review, 2018
Les afirmacions i els arguments més freqüents trobats en fòrums i pàgines web de pseudociència en favor de l’existència dels deixants dels avions, que anomenen chemtrails, es refuten a partir de l’explicació científica del procés de formació dels ...
Jordi Mazon, Marcel Costa, David Pino
doaj   +1 more source