Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic

H. Singh, Y. Chen, A. Tabazadeh, Y. Fukui, I. Bey, R. Yantosca, D. Jacob, F. Arnold, K. Wohlfrom, Elliot L Atlas, F. Flocke, D. Blake, N. Blake, B. Heikes, J. Snow, R. Talbot, G. Gregory, G. Sachse, S. Vay, Y. Kondo

Research output: Contribution to journalArticle

222 Citations (Scopus)

Abstract

A large number of oxygenated organic chemicals (peroxyacyl nitrates, alkyl nitrates, acetone, formaldehyde, methanol, methylhydroperoxide, acetic acid and formic acid) were measured during the 1997 Subsonic Assessment (SASS) Ozone and Nitrogen Oxide Experiment (SONEX) airborne field campaign over the Atlantic. In this paper, we present a first picture of the distribution of these oxygenated organic chemicals (Ox-organic) in the troposphere and the lower stratosphere, and assess their source and sink relationships. In both the troposphere and the lower stratosphere, the total atmospheric abundance of these oxygenated species (ΣOx-organic) nearly equals that of total nonmethane hydrocarbons (ΣNMHC), which have been traditionally measured. A sizable fraction of the reactive nitrogen (10-30%) is present in its oxygenated organic form. The organic reactive nitrogen fraction is dominated by peroxyacetyl nitrate (PAN), with alkyl nitrates and peroxypropionyl nitrate (PPN) accounting for <5% of total NOy. Comparison of observations with the predictions of the Harvard three-dimensional global model suggests that in many key areas (e.g., formaldehyde and peroxides) substantial differences between measurements and theory are present and must be resolved. In the case of CH3OH, there appears to be a large mismatch between atmospheric concentrations and estimated sources, indicating the presence of major unknown removal processes. Instrument intercomparisons as well as disagreements between observations and model predictions are used to identify needed improvements in key areas. The atmospheric chemistry and sources of this group of chemicals is poorly understood even though their fate is intricately linked with upper tropospheric NOx and HOx cycles.

Original languageEnglish (US)
Article number1999JD900779
Pages (from-to)3795-3805
Number of pages11
JournalJournal of Geophysical Research C: Oceans
Volume105
Issue numberD3
StatePublished - Feb 16 2000
Externally publishedYes

Fingerprint

Organic Chemicals
Upper atmosphere
Troposphere
stratosphere
troposphere
nitrates
formic acid
nitrate
Nitrates
Formaldehyde
Nitrogen
formaldehyde
Atmospheric chemistry
Ozone
Peroxides
peroxyacetyl nitrate
Hydrocarbons
Acetone
Acetic Acid
nonmethane hydrocarbon

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Atmospheric Science
  • Astronomy and Astrophysics
  • Oceanography

Cite this

Singh, H., Chen, Y., Tabazadeh, A., Fukui, Y., Bey, I., Yantosca, R., ... Kondo, Y. (2000). Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic. Journal of Geophysical Research C: Oceans, 105(D3), 3795-3805. [1999JD900779].

Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic. / Singh, H.; Chen, Y.; Tabazadeh, A.; Fukui, Y.; Bey, I.; Yantosca, R.; Jacob, D.; Arnold, F.; Wohlfrom, K.; Atlas, Elliot L; Flocke, F.; Blake, D.; Blake, N.; Heikes, B.; Snow, J.; Talbot, R.; Gregory, G.; Sachse, G.; Vay, S.; Kondo, Y.

In: Journal of Geophysical Research C: Oceans, Vol. 105, No. D3, 1999JD900779, 16.02.2000, p. 3795-3805.

Research output: Contribution to journalArticle

Singh, H, Chen, Y, Tabazadeh, A, Fukui, Y, Bey, I, Yantosca, R, Jacob, D, Arnold, F, Wohlfrom, K, Atlas, EL, Flocke, F, Blake, D, Blake, N, Heikes, B, Snow, J, Talbot, R, Gregory, G, Sachse, G, Vay, S & Kondo, Y 2000, 'Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic', Journal of Geophysical Research C: Oceans, vol. 105, no. D3, 1999JD900779, pp. 3795-3805.
Singh H, Chen Y, Tabazadeh A, Fukui Y, Bey I, Yantosca R et al. Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic. Journal of Geophysical Research C: Oceans. 2000 Feb 16;105(D3):3795-3805. 1999JD900779.
Singh, H. ; Chen, Y. ; Tabazadeh, A. ; Fukui, Y. ; Bey, I. ; Yantosca, R. ; Jacob, D. ; Arnold, F. ; Wohlfrom, K. ; Atlas, Elliot L ; Flocke, F. ; Blake, D. ; Blake, N. ; Heikes, B. ; Snow, J. ; Talbot, R. ; Gregory, G. ; Sachse, G. ; Vay, S. ; Kondo, Y. / Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic. In: Journal of Geophysical Research C: Oceans. 2000 ; Vol. 105, No. D3. pp. 3795-3805.
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