Results 41 to 50 of about 15,587 (203)
On the life time of contrail cirrus
, 2012 Here we present results constraining the mean life time of contrail cirrus based on comparisons of results from a new contrail cirrus model, ECMWF forecast data and several years of Meteosat satellite observations for the North Atlantic and ...
Schumann, Ulrich, Graf, Kaspar
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Selected topics on the interaction between cirrus clouds and embedded contrails [PDF]
Atmospheric Chemistry and Physics, 2012 Persistent contrails and natural cirrus clouds often coexist in the upper troposphere and contrails can be embedded within cirrus clouds. The present paper deals with some questions regarding the interaction of cirrus clouds and embedded contrails.
K. Gierens
doaj +1 more source
Air traffic and contrail changes over Europe during COVID-19: a model study [PDF]
Atmospheric Chemistry and Physics, 2021 The strong reduction of air traffic during the COVID-19 pandemic provides a unique test case for the relationship between air traffic density, contrails, and their radiative forcing of climate change.
U. Schumann +11 more
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A parametric radiative forcing model for cirrus and contrail cirrus [PDF]
, 2009 rameterization to compute the instantaneous radiative ux changes induced by thin cirrus (including contrail cirrus) at top of the atmosphere. The method is part of a new contrail cirrus prediction tool CoCiP. The model is being prepared to interpret cirrus cover and radiative irradiance values derived from Meteosat data.
Schumann, Ulrich +4 more
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An automatic contrail tracking algorithm [PDF]
Atmospheric Measurement Techniques, 2010 A method designed to track the life cycle of contrail-cirrus using satellite data with high temporal and spatial resolution, from its formation to the final dissolution of the aviation-induced cirrus cloud is presented.
M. Vazquez-Navarro +2 more
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Revisiting the Link Between Thunderstorms and Upper Tropospheric Water Vapor
Journal of Geophysical Research: Atmospheres, Volume 128, Issue 24, 27 December 2023., 2023 Abstract As the Earth's temperatures continue to rise due to increasing greenhouse gases in the atmosphere, a large portion of the warming is due to positive feedbacks from increasing atmospheric water vapor or specific humidity (SH). Some of this water vapor in the boundary layer is transported via deep convection to the upper troposphere (as droplets
Colin Price +3 more
wiley +1 more source
Journal of Geophysical Research: Atmospheres, Volume 128, Issue 22, 27 November 2023., 2023 Abstract Aircraft measurements reveal ice supersaturation statistics in cirrus (ISSs) with broad maxima around ice saturation and pronounced variance. In this study, processes shaping ISSs in midlatitude and tropical upper tropospheric conditions are systematically investigated.
B. Kärcher +3 more
wiley +1 more source
Global Modeling of the Contrail and Contrail Cirrus Climate Impact [PDF]
Bulletin of the American Meteorological Society, 2010 Despite considerable technological advances, aviation impacts on global climate are significant and may constitute a future constraint on the continued growth of air travel. The most important but least understood component in aviation climate impact assessments are contrails, which form as line-shaped ice clouds (linear contrails) and transform into ...
Burkhardt, Ulrike +2 more
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A “greenhouse gas balance” for aviation in line with the Paris Agreement
WIREs Climate Change, Volume 14, Issue 5, September/October 2023., 2023 CO2‐equivalent emissions from aviation in 2050 calculated with different emissions metrics and the corresponding amounts of CO2 removal for achieving net zero greenhouse gas emissions (“balance”). Abstract The effects of aviation on climate pose unique policy challenges.
Jan Fuglestvedt +4 more
wiley +1 more source
Potential Impacts on Ozone and Climate From a Proposed Fleet of Supersonic Aircraft
Earth's Future, Volume 11, Issue 4, April 2023., 2023 Abstract There has been renewed interest in developing commercial supersonic transport aircraft due to the increased overall demands by the public for air travel, the aspiration for more intercontinental travel, and the desire for shorter flight times.
Jun Zhang +4 more
wiley +1 more source