Results 41 to 50 of about 7,293 (255)
Aerospace, 2020 Formation flight is one potential measure to increase the efficiency of aviation. Flying in the upwash region of an aircraft’s wake vortex field is aerodynamically advantageous. It saves fuel and concomitantly reduces the carbon foot print.
Simon Unterstrasser
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Contrail microphysics in the near wake of a realistic wing through RANS simulations [PDF]
, 2012 This paper focuses on Steady Reynolds Average Navier Stokes simulations (RANS) of ice particles growth in the near field of a wing-injector configuration.
Guignery, Florent +3 more
core +3 more sources
Statistical analysis of contrail lifetimes from a satellite perspective
Meteorologische Zeitschrift, 2018 The study of the lifetimes of contrails from a satellite perspective benefits from the extended coverage and close temporal monitoring. However, the initial stages of the contrail development are not observed from a satellite platform due to the sub ...
Klaus Gierens +1 more
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Star-forming Galactic Contrails at z=3.2 as a Source of Metal Enrichment and Ionizing Radiation [PDF]
, 2013 A spectroscopically detected Lyman alpha emitting halo at redshift 3.216 in the GOODS-N field is found to reside at the convergence of several Lyman alpha filaments. HST images show that some of the filaments are inhabited by galaxies.
Becker, George D. +3 more
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Reanalysis-driven simulations may overestimate persistent contrail formation by 100%–250%
Environmental Research Letters, 2022 Model-based estimates of aviation’s climate impacts have found that contrails contribute 36%–81% of aviation’s instantaneous radiative forcing. These estimates depend on the accuracy of meteorological data provided by reanalyses like ECMWF Reanalysis 5th
Akshat Agarwal +4 more
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Climates of suspicion: 'chemtrail' conspiracy narratives and the international politics of geoengineering [PDF]
, 2014 Concurrent with growing academic and policy interest in ‘geoengineering’ the global climate in response to climate change, a more marginal discourse postulating the existence of a climate control conspiracy is also proliferating on the Internet.
Cairns, Rose
core +1 more source
Properties of In-cirrus Contrails from Airborne Remote-sensing Data [PDF]
EPJ Web of ConferencesAviation impacts the Earth's energy balance through non-CO2 effects and emissions of exhaust gases and soot. Planes flying through cirrus clouds can create contrails that might affect the climate effect of these clouds.
Soleimanpour Mahshad +2 more
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A contrail cirrus prediction model [PDF]
Geoscientific Model Development, 2012 A new model to simulate and predict the properties of a large ensemble of contrails as a function of given air traffic and meteorology is described.
U. Schumann
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Monte Carlo Simulations in Aviation Contrail Study: A Review
Applied Sciences, 2022 This article provides a review of the role of stochastic approaches, in particular Monte Carlo calculations, in the study of aviation-induced contrails at different characteristic lengths, ranging from micrometers to the planetary scale. Pioneered in the
Davide Bianco +5 more
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On contrail climate sensitivity [PDF]
Geophysical Research Letters, 2005 In equilibrium climate change simulations with a global climate model we estimate the climate sensitivity parameter to contrail cirrus to be 0.43 K/(Wm−2), only about 60% of the corresponding value for a CO2 forcing. The spatial pattern of the surface temperature response is much smoother than the forcing pattern of contrails with little correlation ...
Ponater, M. +3 more
openaire +2 more sources