Results 171 to 180 of about 15,587 (203)

Sensitivity of contrail cirrus radiative forcing to air traffic scheduling

Journal of Geophysical Research, 2012
Air traffic effects high cloudiness and therefore the EarthâÂÂs radiation budget by producing contrail cirrus. Contrail cirrus comprise of line-shaped contrails and irregularly shaped ice clouds that originate from them. The warming effect of contrail
Ulrike Burkhardt
exaly   +2 more sources

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Sensitivity of cirrus and contrail radiative effect on cloud microphysical and environmental parameters

Atmospheric Chemistry and Physics, 2023
. Natural cirrus clouds and contrails cover about 30 % of the Earth's mid-latitudes and up to 70 % of the tropics. Due to their widespread occurrence, cirrus clouds have a considerable impact on the Earth energy budget, which, on average, leads to a ...
Kevin Wolf, N. Bellouin, O. Boucher
semanticscholar   +1 more source

A note on how to avoid contrail cirrus

Transportation Research, Part D: Transport and Environment, 2005
Aircraft induced cirrus clouds have a major effect on climate. Here we use operational radiosonde data with high vertical resolution to estimate the effect of a small change in flight altitudes on the contrail and cirrus formation. It is shown that a substantial fraction of contrails and contrail induced cirrus can be avoided by relatively small ...
Hermann Mannstein, Peter Spichtinger, Klaus Gierens   +2 more
exaly   +3 more sources

Contrails and Induced Cirrus

Bulletin of the American Meteorological Society, 2010
This paper summarizes the assessment of the current state of knowledge, areas of uncertainties, and recommendations for future efforts, regarding the optical and radiative properties of contrails and contrail cirrus, which have been reported in two detailed subject-specific white papers for the Aviation Climate Change Research Initiative undertaken by ...
Yang, Ping, Hong, Gang, Dessler, Andrew E., Ou, Steve S. C., Liou, Kou N., Minnis, Patrick, Harshvardhan   +6 more
openaire   +2 more sources

Contrail Cirrus Climate Impact: From Radiative Forcing to Surface Temperature Change

Journal of Climate
Contrail cirrus has been regarded as the most important individual component of aviation-induced global climate impact, a conclusion prompted by radiative forcing estimates from a variety of models.
Marius Bickel, M. Ponater, Ulrike Burkhardt, M. Righi, Johannes Hendricks, P. Jöckel   +5 more
semanticscholar   +1 more source

CIRRUS-HL: Picturing high- and mid-latitude summer cirrus and contrail cirrus above Europe with airborne measurements aboard the research aircraft HALO

Bulletin of The American Meteorological Society - (BAMS)
Accurately determining and reducing the climate impact of aviation and its uncertainties is one of the pressing challenges of our times. Contrail cirrus are estimated to contribute more than half of the total effective radiative forcing from aviation ...
T. Jurkat-Witschas, C. Voigt, Silke Groß, S. Kaufmann, Daniel Sauer, Elena De La Torre Castro, Martina Krämer, A. Schäfler, A. Afchine, Roman Attinger, Irene Bartolome Garcia, C. Beer, L. Bugliaro, Hans-Christian Clemen, Georgios Dekoutsidis, A. Ehrlich, Sarah Grawe, Valerian Hahn, Johannes Hendricks, E. Järvinen, Klimach Thomas, Konstantin Krüger, Krüger Ovid, Johannes Lucke, Anna E. Luebke, Andreas Marsing, B. Mayer, Johanna Mayer, S. Mertes, M. Moser, Hanno Müller, V. Nenakhov, M. Pöhlker, U. Pöschl, Veronika Pörtge, M. Rautenhaus, M. Righi, Johannes Röttenbacher, Milenko Rubin-Zuzic, J. Schaefer, M. Schnaiter, J. Schneider, U. Schumann, N. Spelten, Frank Stratmann, L. Tomsche, Shawn Wagner, Ziming Wang, Anna Weber, M. Wendisch, H. Wernli, Bruno Wetzel, Martin Wirth, A. Zahn, H. Ziereis, M. Zöger   +55 more
semanticscholar   +1 more source

Description and evaluation of a new contrail cirrus parameterization in the ARPEGE-Climat atmospheric model

Comptes rendus Geoscience
The impact of aviation on climate change due to CO2 emissions is well established and is far less uncertain than the one due to non-CO2 effects. Among these effects, the formation and evolution of contrails into cirrus-type clouds remains highly ...
Maxime Perini, Laurent Terray, Daniel Cariolle, Baptiste Dubouays De La Bégassière, M. Moine   +4 more
semanticscholar   +1 more source

Global radiative forcing from contrail cirrus

Nature Climate Change, 2011
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.
Ulrike Burkhardt, B Karcher
exaly   +2 more sources

Contrails, Cirrus Trends, and Climate

Journal of Climate, 2004
Rising global air traffic and its associated contrails have the potential for affecting climate via radiative forcing. Current estimates of contrail climate effects are based on coverage by linear contrails that do not account for spreading and, therefore, represent the minimum impact.
Patrick Minnis, J. Kirk Ayers, Rabindra Palikonda, Dung Phan   +3 more
openaire   +1 more source

Forecasting contrail climate forcing for flight planning and air traffic management applications: the CocipGrid model in pycontrails 0.51.0

Geoscientific Model Development
. The global annual mean contrail climate forcing may exceed that of aviation's cumulative CO2 emissions. As only 2 %–3 % of all flights are likely responsible for 80 % of the global annual contrail energy forcing (EFcontrail), re-routing these flights ...
Zebediah Engberg, Roger Teoh, Tristan Abbott, Thomas R Dean, Marc E. J. Stettler, Marc L Shapiro   +5 more
semanticscholar   +1 more source