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Interactions between sulfur and soot emissions from aircraft and their role in contrail formation - 2. Development

Publication ,  Journal Article
Andronache, C; Chameides, WL
Published in: Journal of Geophysical Research D: Atmospheres
1998

A numerical box model of the time evolution of key gaseous and aerosol species in an expanding plume of a subsonic aircraft is developed to investigate the effects of aircraft emissions on the characteristics of contrails. The model simulates the formation and growth of new particles from H 2SO 4 and II 2O and the growth of activated soot particles. Coagulation, dilution, and interaction with gaseous species are included. The evidence of contrail formation is determined by the condensed water concentration, using a visibility threshold of 10 -5 kg m -3. The model simulates formation of large concentrations of H 2SO 4-H 2O particles with radii in the range ∼1-10 nm. The number concentration and the rate of growth of these particles is dependent on the sulfur emissions. We find that for a given initial concentration of soot particles and ambient conditions the sensitivity of contrail properties to fuel sulfur content is small for typical emission indices (0.1-1 g kg -1). For larger sulfur emissions and favorable conversion of sulfur into H 2SO 4 the calculations show a slight impact of sulfur on contrail properties, such as lifetime, onset, and threshold temperature. The magnitude of this influence is generally smaller than the variations caused by uncertainties in the mass accommodation coefficient of sulfur species on soot surface, entrainment rate of ambient air into the plume, soot emissions, and atmosphere parameters at flight altitude. Copyright 1998 by the American Geophysical Union.

Duke Scholars

Published In

Journal of Geophysical Research D: Atmospheres

ISSN

0148-0227

Publication Date

1998

Volume

103

Issue

3339

Start / End Page

10787 / 10802

Related Subject Headings

  • Meteorology & Atmospheric Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Andronache, C., & Chameides, W. L. (1998). Interactions between sulfur and soot emissions from aircraft and their role in contrail formation - 2. Development. Journal of Geophysical Research D: Atmospheres, 103(3339), 10787–10802.
Andronache, C., and W. L. Chameides. “Interactions between sulfur and soot emissions from aircraft and their role in contrail formation - 2. Development.” Journal of Geophysical Research D: Atmospheres 103, no. 3339 (1998): 10787–802.
Andronache C, Chameides WL. Interactions between sulfur and soot emissions from aircraft and their role in contrail formation - 2. Development. Journal of Geophysical Research D: Atmospheres. 1998;103(3339):10787–802.
Andronache, C., and W. L. Chameides. “Interactions between sulfur and soot emissions from aircraft and their role in contrail formation - 2. Development.” Journal of Geophysical Research D: Atmospheres, vol. 103, no. 3339, 1998, pp. 10787–802.
Andronache C, Chameides WL. Interactions between sulfur and soot emissions from aircraft and their role in contrail formation - 2. Development. Journal of Geophysical Research D: Atmospheres. 1998;103(3339):10787–10802.

Published In

Journal of Geophysical Research D: Atmospheres

ISSN

0148-0227

Publication Date

1998

Volume

103

Issue

3339

Start / End Page

10787 / 10802

Related Subject Headings

  • Meteorology & Atmospheric Sciences