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Brune et al. 1999

Brune, W.H., Tan, D., Faloona, I.F., Jaeglé, L., Jacob, D.J., Heikes, B.G., Snow, J., Kondo, Y., Shetter, R., Sachse, G.W., Anderson, B., Gregory, G.L., Vay, S., Singh, H.B., Davis, D.D., Crawford, J.H. and Blake, D.R. (1999). OH and HO₂ chemistry in the North Atlantic free troposphere. Geophysical Research Letters 26: doi: 10.1029/1999GL900549. issn: 0094-8276.

Interactions between atmospheric hydrogen oxides and aircraft nitrogen oxides determine the impact of aircraft exhaust on atmospheric chemistry. To study these interactions, the Subsonic Assessment: Ozone and Nitrogen Oxide Experiment (SONEX) assembled the most complete measurement complement to date for studying HOx (OH and HO2) chemistry in the free troposphere. Observed and modeled HOx agree on average to within experimental uncertainties (¿40%). However, significant discrepancies occur as a function of NO and at solar zenith angles >70¿. Some discrepancies appear to be removed by model adjustments to HOx-NOx chemistry, particularly by reducing HO2NO2 (PNA) and by including heterogeneous reactions on aerosols and cirrus clouds. ¿ 1999 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Atmospheric Composition and Structure, Troposphere—composition and chemistry

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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