DOI: 10.1029/96gl02474. HNO3/NOx ratio in the remote troposphere During MLOPEX 2: Evidence for nitric acid reduction on carbonaceous aerosols?

HNO3/NOx ratio in the remote troposphere During MLOPEX 2: Evidence for nitric acid reduction on carbonaceous aerosols?

10.1029/96gl02474

Crossref journal-article

American Geophysical Union (AGU)

Geophysical Research Letters (13)

Abstract

The [HNO3]/[NOx] ratio is generally overestimated by a factor of 5–10 in photochemical models in comparison to tropospheric measurements. In this study, the heterogeneous reduction of HNO3 into NO on carbonaceous aerosols [Lary et al., 1996] has been introduced in a photochemical box‐model on the basis of black carbon mass densities measured during MLOPEX 2. This recycling to NOx decreases the [HNO3]/[NOx] ratio close to observed values. The concomitant increase in modeled NOx concentration is also in better agreement with the observations, and has substantial implications for the ozone budget in the remote atmosphere. Large uncertainties in the estimate of black carbon surface area and of accomodation coefficients preclude definitive conclusions until more detailed measurements are carried out.

Bibliography

Hauglustaine, D. A., Ridley, B. A., Solomon, S., Hess, P. G., & Madronich, S. (1996). HNO3/NOx ratio in the remote troposphere During MLOPEX 2: Evidence for nitric acid reduction on carbonaceous aerosols? Geophysical Research Letters, 23(19), 2609â2612. Portico.

Authors 5

D. A. Hauglustaine (first)
B. A. Ridley (additional)
S. Solomon (additional)
P. G. Hess (additional)
S. Madronich (additional)

References 12 Referenced 107

10.1029/96JD01203
10.1029/94JD03118
10.1029/95JD02045
10.1029/94GL02659
10.1029/94JD01122
10.1029/95JD03612
{'key': 'e_1_2_1_8_1', 'article-title': 'Carbon aerosols and atmospheric photochemistry', 'author': 'Lary D. J.', 'year': '1996', 'journal-title': 'J. Geophys. Res.'} / J. Geophys. Res. / Carbon aerosols and atmospheric photochemistry by Lary D. J. (1996)
10.1029/91JD02298
Madronich S.J. G.Calvert The NCAR master mechanism of the gas phase chemistry‐Version 2.0 Rep. NCAR/TN‐333+STRNational Center for Atmospheric Research Boulder CO 1989
Rogaski C.D. M.GoldenL.Williams Reaction of HNO3 and other species on soot surfaces 13th Informal Symposium on Kinetics and Photochemical Processes in the Atmosphere Calif. Inst. of Tech. Jan. 16 1996
10.1029/95JD01029
{'key': 'e_1_2_1_13_1', 'volume-title': 'Impact of emissions from aircraft and spacecraft upon the atmosphere', 'author': 'Thlibi J.', 'year': '1994'} / Impact of emissions from aircraft and spacecraft upon the atmosphere by Thlibi J. (1994)

Dates

Type	When
Created	21 years, 7 months ago (Feb. 3, 2004, 11:36 p.m.)
Deposited	1 year, 9 months ago (Nov. 22, 2023, 11:02 a.m.)
Indexed	2 months, 1 week ago (June 27, 2025, 9:45 a.m.)
Issued	28 years, 11 months ago (Sept. 15, 1996)
Published	28 years, 11 months ago (Sept. 15, 1996)
Published Online	28 years, 11 months ago (Sept. 15, 1996)
Published Print	28 years, 11 months ago (Sept. 15, 1996)

Funders 0

None

BibTeX

@article{Hauglustaine_1996, title={HNO3/NOx ratio in the remote troposphere During MLOPEX 2: Evidence for nitric acid reduction on carbonaceous aerosols?}, volume={23}, ISSN={1944-8007}, url={http://dx.doi.org/10.1029/96gl02474}, DOI={10.1029/96gl02474}, number={19}, journal={Geophysical Research Letters}, publisher={American Geophysical Union (AGU)}, author={Hauglustaine, D. A. and Ridley, B. A. and Solomon, S. and Hess, P. G. and Madronich, S.}, year={1996}, month=sep, pages={2609–2612} }

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