OH and HO2 chemistry in the North Atlantic free troposphere

William Henry Brune, D. Tan, I. F. Faloona, L. Jaeglé, D. J. Jacob, B. G. Heikes, J. Snow, Y. Kondo, R. Shetter, G. W. Sachse, B. Anderson, G. L. Gregory, S. Vay, H. B. Singh, D. D. Davis, J. H. Crawford, D. R. Blake

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

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 HO(x) (OH and HO2) chemistry in the free troposphere. Observed and modeled HO(x) 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 HO(x)-NO(x) chemistry, particularly by reducing HO2NO2 (PNA) and by including heterogeneous reactions on aerosols and cirrus clouds.

Original languageEnglish (US)
Pages (from-to)3077-3080
Number of pages4
JournalGeophysical Research Letters
Volume26
Issue number20
DOIs
StatePublished - Oct 15 1999

Fingerprint

nitrogen oxides
troposphere
aircraft
chemistry
cirrus clouds
atmospheric chemistry
oxides
zenith angle
zenith
cirrus
complement
ozone
aerosols
adjusting
oxide
interactions
hydrogen
aerosol
experiment

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

Brune, W. H., Tan, D., Faloona, I. F., Jaeglé, L., Jacob, D. J., Heikes, B. G., ... Blake, D. R. (1999). OH and HO2 chemistry in the North Atlantic free troposphere. Geophysical Research Letters, 26(20), 3077-3080. https://doi.org/10.1029/1999GL900549
Brune, William Henry ; 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. ; Blake, D. R. / OH and HO2 chemistry in the North Atlantic free troposphere. In: Geophysical Research Letters. 1999 ; Vol. 26, No. 20. pp. 3077-3080.
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Brune, WH, Tan, D, Faloona, IF, Jaeglé, L, Jacob, DJ, Heikes, BG, Snow, J, Kondo, Y, Shetter, R, Sachse, GW, Anderson, B, Gregory, GL, Vay, S, Singh, HB, Davis, DD, Crawford, JH & Blake, DR 1999, 'OH and HO2 chemistry in the North Atlantic free troposphere', Geophysical Research Letters, vol. 26, no. 20, pp. 3077-3080. https://doi.org/10.1029/1999GL900549

OH and HO2 chemistry in the North Atlantic free troposphere. / Brune, William Henry; 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.; Blake, D. R.

In: Geophysical Research Letters, Vol. 26, No. 20, 15.10.1999, p. 3077-3080.

Research output: Contribution to journalArticle

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AU - Brune, William Henry

AU - Tan, D.

AU - Faloona, I. F.

AU - Jaeglé, L.

AU - Jacob, D. J.

AU - Heikes, B. G.

AU - Snow, J.

AU - Kondo, Y.

AU - Shetter, R.

AU - Sachse, G. W.

AU - Anderson, B.

AU - Gregory, G. L.

AU - Vay, S.

AU - Singh, H. B.

AU - Davis, D. D.

AU - Crawford, J. H.

AU - Blake, D. R.

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Brune WH, Tan D, Faloona IF, Jaeglé L, Jacob DJ, Heikes BG et al. OH and HO2 chemistry in the North Atlantic free troposphere. Geophysical Research Letters. 1999 Oct 15;26(20):3077-3080. https://doi.org/10.1029/1999GL900549