Meridional distributions of NO(X), NO(Y), and other species in the lower statosphere and upper troposphere during AASE 2

Details Meridional distributions of NO(X), NO(Y), and other species in the lower statosphere and upper troposphere during AASE 2 Meridional distributions of NO(X), NO(Y), and other species in the lower statosphere and upper troposphere during AASE 2

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.2583w&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 23, p. 2583-2586

Physics

36

Air Pollution, Air Sampling, Atmospheric Chemistry, Atmospheric Circulation, Meridional Flow, Nitrogen Oxides, Ozone, Ozone Depletion, Stratosphere, Troposphere, Carbon Monoxide, Dc 8 Aircraft, Histograms, Methane, Pollution Monitoring, Vertical Distribution

Scientific paper

The meridional distribution of NO(x) in the lower stratosphere and upper troposphere is inferred form 10 flights of the NASA DC-8 in the northern winter of 1992 along with like distributions of NO(y), NO(x)/NO(y), CO, and C2Cl4. In the lowest few km of the stratosphere there is little vertical gradient in NO(x) over the range of latitiudes measured (40 deg-90 deg N). There is a substantial latitudinal gradient, with 50 pptv above the pole and 120 pptv near 40 deg N. In the uppermost few km of the troposphere, background values range from 30 pptv over the pole to 90 pptv near 40 deg N. On two occasions higher values, up to 140 pptv in the mean, were seen 2-3 km below the tropopause in association with frontal systems. The meridional distributions of CO and C2Cl4 show the same feature, suggesting that the source of the elevated NO(x) is near the earth's system.

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