An assessment of aircraft as a source of particles to the upper troposphere

Details An assessment of aircraft as a source of particles to the upper troposphere An assessment of aircraft as a source of particles to the upper troposphere

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.3069a&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 20, p. 3069-3072

Statistics

16

Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry

Scientific paper

Condensation nuclei measurements are examined in conjunction with measurements of reactive nitrogen species (NOy) to identify aircraft plumes in primary air traffic corridors over the North Atlantic. Several hundred plumes exhibiting >=100 pptv enhancements in NOy mixing ratio were observed. The plumes were typically a few hundred meters wide, exhibited high NO/NOy ratios, and ranged in age from ~10 minutes to ~10 hours. Assuming the sampled aircraft emitted ~12gNOx (as NO2) kg-1 fuel burned and that the loss of NOy to the particle phase was negligible, we calculate median aerosol emission indices in terms of number of particles kg-1 of fuel burned of ~120×1015 for CN>=8nm in size; ~50×1015 for CN>=17nm and ~3×1015 for the nonvolatile CN>=17nm. Using published fuel burn statistics, background aerosol concentrations, and a 10 day particle lifetime, we conclude that present aviation sources enhance global averaged upper-tropospheric fine and nonvolatile aerosol number densities by ~6% and ~3%, respectively.

Affiliated with

Also associated with

No associations

Rating

An assessment of aircraft as a source of particles to the upper troposphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An assessment of aircraft as a source of particles to the upper troposphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An assessment of aircraft as a source of particles to the upper troposphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1085673