Chemical composition of air masses transported from Asia to the U.S. West coast during ITCT 2K2

Fossil fuel combustion versus biomass-burning signatures

J. A. de Gouw, O. R. Cooper, C. Warneke, P. K. Hudson, F. C. Fehsenfeld, J. S. Holloway, G. Hübler, Jr K. Nicks, J. B. Nowak, D. D. Parrish, T. B. Ryerson, Elliot L Atlas, S. G. Donnelly, S. M. Schauffler, V. Stroud, K. Johnson, G. R. Carmichael, D. G. Streets

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

As part of the Intercontinental Transport and Chemical Transformation experiment in 2002 (ITCT 2K2), a National Oceanic and Atmospheric Administration (NOAA) WP-3D research aircraft was used to study the long-range transport of Asian air masses toward the west coast of North America. During research flights on 5 and 17 May, strong enhancements of carbon monoxide (CO) and other species were observed in air masses that had been transported from Asia. The hydrocarbon composition of the air masses indicated that the highest CO levels were related to fossil fuel use. During the flights on 5 and 17 May and other days, the levels of several biomass-buming indicators increased with altitude. This was true for acetonitrile (CH3CN), methyl chloride (CH3Cl), the ratio of acetylene (C2H2) to propane (C3H8), and, on May 5, the percentage of particles measured by the particle analysis by laser mass spectrometry (PALMS) instrument that were attributed to biomass burning based on their carbon and potassium content. An ensemble of back-trajectories, calculated from the U.S. west coast over a range of latitudes and altitudes for the entire ITCT 2K2 period, showed that air masses from Southeast Asia and China were generally observed at higher altitudes than air from Japan and Korea. Emission inventories estimate the contribution of biomass burning to the total emissions to be low for Japan and Korea, higher for China, and the highest for Southeast Asia. Combined with the origin of the air masses versus altitude, this qualitatively explains the increase with altitude, averaged over the whole ITCT 2K2 period, of the different biomass-burning indicators.

Original languageEnglish (US)
Pages (from-to)1-15
Number of pages15
JournalJournal of Geophysical Research C: Oceans
Volume109
Issue number23
DOIs
StatePublished - Dec 16 2004
Externally publishedYes

Fingerprint

fuel combustion
biomass burning
fossil fuels
air masses
Fossil fuels
coasts
air mass
fossil fuel
Coastal zones
chemical composition
Biomass
combustion
signatures
coast
Southeast Asia
Air
Chemical analysis
Korea
carbon monoxide
Carbon Monoxide

Keywords

  • Biomass burning
  • Fossil-fuel combustion
  • Long-range transport

ASJC Scopus subject areas

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

Cite this

Chemical composition of air masses transported from Asia to the U.S. West coast during ITCT 2K2 : Fossil fuel combustion versus biomass-burning signatures. / de Gouw, J. A.; Cooper, O. R.; Warneke, C.; Hudson, P. K.; Fehsenfeld, F. C.; Holloway, J. S.; Hübler, G.; Nicks, Jr K.; Nowak, J. B.; Parrish, D. D.; Ryerson, T. B.; Atlas, Elliot L; Donnelly, S. G.; Schauffler, S. M.; Stroud, V.; Johnson, K.; Carmichael, G. R.; Streets, D. G.

In: Journal of Geophysical Research C: Oceans, Vol. 109, No. 23, 16.12.2004, p. 1-15.

Research output: Contribution to journalArticle

de Gouw, JA, Cooper, OR, Warneke, C, Hudson, PK, Fehsenfeld, FC, Holloway, JS, Hübler, G, Nicks, JK, Nowak, JB, Parrish, DD, Ryerson, TB, Atlas, EL, Donnelly, SG, Schauffler, SM, Stroud, V, Johnson, K, Carmichael, GR & Streets, DG 2004, 'Chemical composition of air masses transported from Asia to the U.S. West coast during ITCT 2K2: Fossil fuel combustion versus biomass-burning signatures', Journal of Geophysical Research C: Oceans, vol. 109, no. 23, pp. 1-15. https://doi.org/10.1029/2003JD004202
de Gouw, J. A. ; Cooper, O. R. ; Warneke, C. ; Hudson, P. K. ; Fehsenfeld, F. C. ; Holloway, J. S. ; Hübler, G. ; Nicks, Jr K. ; Nowak, J. B. ; Parrish, D. D. ; Ryerson, T. B. ; Atlas, Elliot L ; Donnelly, S. G. ; Schauffler, S. M. ; Stroud, V. ; Johnson, K. ; Carmichael, G. R. ; Streets, D. G. / Chemical composition of air masses transported from Asia to the U.S. West coast during ITCT 2K2 : Fossil fuel combustion versus biomass-burning signatures. In: Journal of Geophysical Research C: Oceans. 2004 ; Vol. 109, No. 23. pp. 1-15.
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