Results 31 to 40 of about 1,937 (214)
Northern Hemisphere contrail properties derived from Terra and Aqua MODIS data for 2006 and 2012 [PDF]
Atmospheric Chemistry and Physics, 2019 Linear contrail coverage, optical property, and radiative forcing data over the Northern Hemisphere (NH) are derived from a year (2012) of Terra and Aqua Moderate-resolution Imaging Spectroradiometer (MODIS) imagery and compared with previously published
D. P. Duda +6 more
doaj +1 more source
Radiative forcing by contrails [PDF]
Annales Geophysicae, 1999 Abstract. A parametric study of the instantaneous radiative impact of contrails is presented using three different radiative transfer models for a series of model atmospheres and cloud parameters. Contrails are treated as geometrically and optically thin plane parallel homogeneous cirrus layers in a static atmosphere. The ice water content is varied as
R. Meerkötter +6 more
openaire +6 more sources
Contrail Modeling and Simulation [PDF]
Annual Review of Fluid Mechanics, 2016 There is large uncertainty in the radiative forcing induced by aircraft contrails, particularly after they transform to cirrus. It has recently become possible to simulate contrail evolution for long periods after their formation. We review the main physical processes and simulation efforts in the four phases of contrail evolution, namely the jet ...
Roberto Paoli, Karim Shariff
openaire +1 more source
Meteorologische Zeitschrift, 2005 Estimates of contrail frequency and coverage over the contiguous United States (CONUS) are developed using hourly meteorological analyses from the Rapid Update Cycle (RUC) numerical weather prediction model and commercial air traffic data for 2 months ...
David P. Duda +2 more
doaj +1 more source
Impact of host climate model on contrail cirrus effective radiative forcing estimates [PDF]
Atmospheric Chemistry and PhysicsEstimates of aviation effective radiative forcing (ERF) indicate that contrail cirrus is currently its largest contributor, although with a substantial associated uncertainty of ∼ 70 %.
W. Zhang +16 more
doaj +1 more source
, 2002 A contrail (a term introduced for “condensation trail” in 1942 by British pilots) is a visible cloud forming behind aircraft, mainly due to water vapor emissions from the engines. Contrails were first observed behind propeller-driven aircraft in 1915 but form as well from the exhaust of jet engines in cold ambient air (Schumann 1996a).
openaire +4 more sources
Contrail cirrus radiative forcing for future air traffic [PDF]
Atmospheric Chemistry and Physics, 2019 The climate impact of air traffic is to a large degree caused by changes in cirrus cloudiness resulting from the formation of contrails. Contrail cirrus radiative forcing is expected to increase significantly over time due to the large projected ...
L. Bock, U. Burkhardt
doaj +1 more source
Factors controlling contrail cirrus optical depth
, 2009 Aircraft contrails develop into contrail cirrus by depositional growth and sedimentation of ice particles and horizontal spreading due to wind shear.
Minnis, Pat +7 more
core +1 more source
Simulated radiative forcing from contrails and contrail cirrus [PDF]
Atmospheric Chemistry and Physics, 2013 Abstract. A comprehensive general circulation model including ice supersaturation is used to estimate the climate impact of aviation induced contrails. The model uses a realistic aviation emissions inventory for 2006 to initiate contrails, and allows them to evolve consistently with the model hydrologic cycle.
C.-C. Chen, A. Gettelman
openaire +3 more sources
Contrail: Distributed Application Deployment under SLA in Federated Heterogeneous Clouds
, 2013 International audienceCloud computing market is in rapid expansion due to the opportunities to dynamically allocate a large amount of resources when needed and to pay only for their effective usage.
Lorenzo, Blasi +4 more
core +2 more sources