Results 91 to 100 of about 7,293 (255)
First simulations of cryoplane contrails [PDF]
In this paper the first numerical simulations of condensation trails (contrails) from liquid hydrogen (LH2) fueled aircraft are presented. Such aircraft produces 2.6 times more exhaust water vapor than equivalent aircraft fueled by kerosene; however, combustion of LH2 produces no aerosol particles.
Ström, L., Gierens, K.
openaire +2 more sources
Effect of contrail overlap on radiative impact attributable to aviation contrails
. Condensation trails (“contrails”) which form behind aircraft are estimated to cause on the order of 50 % of the total climate impact of aviation, matching the total impact of all accumulated aviation-attributable CO2.
Inés Sanz-Morère +4 more
semanticscholar +1 more source
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 +7 more
wiley +1 more source
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 +4 more
wiley +1 more source
Sensitivity of radiative properties of persistent contrails to the ice water path [PDF]
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 +3 more
doaj +1 more source
Aircraft Trajectory Optimization and Contrails Avoidance in the Presence of Winds [PDF]
There are indications that persistent contrails can lead to adverse climate change, although the complete effect on climate forcing is still uncertain. A flight trajectory optimization algorithm with fuel and contrails models, which develops alternative ...
Chen, Neil Y., Ng, Hok K.
core +1 more source
The role of air transportation in emissions through energy usage: Evidence from global data
Abstract Investigating the role that air transportation plays in regard to carbon emissions offers several valuable insights and contributions that are critical for addressing climate change and promoting sustainable development as far as climate mitigation, policy development and evaluation, technological innovation, public awareness engagement ...
Setareh Katircioglu
wiley +1 more source
EOS Science Poster Series: AIR-Our Outer Atmosphere [PDF]
This poster depicts how NASA scientists are working to understand the outer atmosphere (air). Satellite images, graphs, and pictures complement the fact-filled information.
core
The impact of diurnal variations of air traffic on contrail radiative forcing [PDF]
We combined high resolution aircraft flight data from the EU Fifth Framework Programme project AERO2k with analysis data from the ECMWF's integrated forecast system to calculate diurnally resolved 3-D contrail cover.
Forster, P.M. de F., Stuber, Nicola
core +3 more sources
This paper studies the impacts on flight trajectories, such as lateral and vertical changes, when avoiding the formation of persistent contrails for transatlantic flights.
F. Yin +3 more
semanticscholar +1 more source

