Physics
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.3119m&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 16, p. 3119-3122
Physics
32
Atmospheric Composition And Structure: Cloud Physics And Chemistry, Atmospheric Composition And Structure: Transmission And Scattering Of Radiation, Global Change: Atmosphere, Meteorology And Atmospheric Dynamics: Radiative Processes
Scientific paper
Global calculations of the radiative forcing due to contrails from aircraft are performed. A contrail distribution computed based on aviation fuel consumption and radiative transfer models for solar and thermal infrared radiation have been used. A substantially smaller net radiative forcing due to contrails (about 0.01 Wm-2) is estimated in comparison to former studies, emphasizing the strong sensitivity of this value to uncertainties in the longwave and shortwave contribution. The solar forcing is negative and the magnitude maximizes for high solar zenith angles. Altering the time for aircraft traffic has the potential for reducing the radiative forcing due to contrails, and under certain assumptions made in this paper giving a net zero forcing.
Myhre Gunnar
Stordal Frode
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