Results 101 to 110 of about 2,173 (206)
Impact of biofuels on contrail warming
Environmental Research Letters, 2017 Contrails and contrail-cirrus may be the largest source of radiative forcing (RF) attributable to aviation. Biomass-derived alternative jet fuels are a potentially major way to mitigate the climate impacts of aviation by reducing lifecycle CO _2 ...
Fabio Caiazzo +3 more
doaj +1 more source
Contrails, contrail cirrus, and ship tracks
, 2006 The following text is an enlarged version of the conference tutorial lecture on contrails, contrail cirrus, and ship tracks. I start with a general introduction into aerosol effects on clouds. Contrail formation and persistence, aviation’s share to cirrus trends and ship tracks are treated then.
openaire +2 more sources
Is there a trend in cirrus cloud cover due to aircraft traffic? [PDF]
, 2005 Trends in cirrus cloud cover have been estimated based on 16 years of data from ISCCP (International Satellite Cloud Climatology Project). The results have been spatially correlated with aircraft density data to determine the changes in cirrus cloud ...
D. S. Lee +9 more
core
, 2006 International audienceWe 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. Calibrating for
Forster, P., Stuber, N.
core +1 more source
Optical Properties of Ice Particles in Young Contrails [PDF]
The single-scattering properties of four types of ice crystals (pure ice crystals, ice crystals with an internal mixture of ice and black carbon, ice crystals coated with black carbon, and soot coated with ice) in young contrails are investigated at ...
Feng, Qian +5 more
core +1 more source
Feasibility of contrail avoidance in a commercial flight planning system: an operational analysis
Environmental Research: Infrastructure and SustainabilityAircraft condensation trails, also known as contrails, contribute a substantial portion of aviation’s overall climate footprint. Contrail impacts can be reduced through smart flight planning that avoids contrail-forming regions of the atmosphere.
A Martin Frias +5 more
doaj +1 more source
Liquid Hydrogen: A Mirage or Potent Solution for Aviation's Climate Woes? [PDF]
Environ Sci Technol, 2023 Miller TR, Chertow M, Hertwich E.
europepmc +1 more source
Observing, Describing, and Identifying Clouds [PDF]
, 2003 In this activity students observe and sketch clouds, describing their forms. They initially generate descriptions of a personal nature and then move toward building a more scientific vocabulary.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core
Towards a Model Climatology of Relative Humidity in the Upper Troposphere for Estimation of Contrail and Contrail-Induced Cirrus [PDF]
, 2011 The formation of contrails and contrail cirrus is very sensitive to the relative humidity of the upper troposphere. To reduce uncertainty in an estimate of the radiative impact of aviation-induced cirrus, a model must therefore be able to reproduce the ...
Benson, C. +7 more
core +1 more source
Transmission formulation for random stacks of clouds
Meteorologische ZeitschriftWe present a formulation for calculations of photon transmission for random cloud stacks (maximum-random overlap) that can be applied in contrail avoidance experiments, for instance. Other applications are not excluded. In contrail avoidance experiments,
Klaus Gierens
doaj +1 more source