Transpacific transport of ozone pollution and the effect of recent Asian emission increases on air quality in North America: An integrated analysis using satellite, aircraft, ozonesonde, and surface observations

L. Zhang, D. J. Jacob, K. F. Boersma, D. A. Jaffe, J. R. Olson, K. W. Bowman, J. R. Worden, A. M. Thompson, M. A. Avery, R. C. Cohen, J. E. Dibb, F. M. Flock, H. E. Fuelberg, L. G. Huey, W. W. McMillan, H. B. Singh, A. J. Weinheimer

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Abstract

We use an ensemble of aircraft, satellite, sonde, and surface observations for April-May 2006 (NASA/INTEX-B aircraft campaign) to better understand the mechanisms for transpacific ozone pollution and its implications for North American air quality. The observations are interpreted with a global 3-D chemical transport model (GEOS-Chem). OMI NO2 satellite observations constrain Asian anthropogenic NOx emissions and indicate a factor of 2 increase from 2000 to 2006 in China. Satellite observations of CO from AIRS and TES indicate two major events of Asian transpacific pollution during INTEX-B. Correlation between TES CO and ozone observations shows evidence for transpacific ozone pollution. The semi-permanent Pacific High and Aleutian Low cause splitting of transpacific pollution plumes over the Northeast Pacific. The northern branch circulates around the Aleutian Low and has little impact on North America. The southern branch circulates around the Pacific High and some of that air impacts western North America. Both aircraft measurements and model results show sustained ozone production driven by peroxyacetylnitrate (PAN) decomposition in the southern branch, roughly doubling the transpacific influence from ozone produced in the Asian boundary layer. Model simulation of ozone observations at Mt. Bachelor Observatory in Oregon (2.7km altitude) indicates a mean Asian ozone pollution contribution of 9±3 ppbv to the mean observed concentration of 54 ppbv, reflecting mostly an enhancement in background ozone rather than episodic Asian plumes. Asian pollution enhanced surface ozone concentrations by 5-7 ppbv over western North America in spring 2006. The 2000-2006 rise in Asian anthropogenic emissions increased this influence by 1-2 ppbv.

Original languageEnglish (US)
Pages (from-to)6117-6136
Number of pages20
JournalAtmospheric Chemistry and Physics
Volume8
Issue number20
DOIs
StatePublished - Jan 1 2008

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ozonesonde
air quality
aircraft
ozone
pollution
plume
North America
analysis
effect
AIRS
airborne survey
EOS
observatory
boundary layer
decomposition

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Zhang, L. ; Jacob, D. J. ; Boersma, K. F. ; Jaffe, D. A. ; Olson, J. R. ; Bowman, K. W. ; Worden, J. R. ; Thompson, A. M. ; Avery, M. A. ; Cohen, R. C. ; Dibb, J. E. ; Flock, F. M. ; Fuelberg, H. E. ; Huey, L. G. ; McMillan, W. W. ; Singh, H. B. ; Weinheimer, A. J. / Transpacific transport of ozone pollution and the effect of recent Asian emission increases on air quality in North America : An integrated analysis using satellite, aircraft, ozonesonde, and surface observations. In: Atmospheric Chemistry and Physics. 2008 ; Vol. 8, No. 20. pp. 6117-6136.
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abstract = "We use an ensemble of aircraft, satellite, sonde, and surface observations for April-May 2006 (NASA/INTEX-B aircraft campaign) to better understand the mechanisms for transpacific ozone pollution and its implications for North American air quality. The observations are interpreted with a global 3-D chemical transport model (GEOS-Chem). OMI NO2 satellite observations constrain Asian anthropogenic NOx emissions and indicate a factor of 2 increase from 2000 to 2006 in China. Satellite observations of CO from AIRS and TES indicate two major events of Asian transpacific pollution during INTEX-B. Correlation between TES CO and ozone observations shows evidence for transpacific ozone pollution. The semi-permanent Pacific High and Aleutian Low cause splitting of transpacific pollution plumes over the Northeast Pacific. The northern branch circulates around the Aleutian Low and has little impact on North America. The southern branch circulates around the Pacific High and some of that air impacts western North America. Both aircraft measurements and model results show sustained ozone production driven by peroxyacetylnitrate (PAN) decomposition in the southern branch, roughly doubling the transpacific influence from ozone produced in the Asian boundary layer. Model simulation of ozone observations at Mt. Bachelor Observatory in Oregon (2.7km altitude) indicates a mean Asian ozone pollution contribution of 9±3 ppbv to the mean observed concentration of 54 ppbv, reflecting mostly an enhancement in background ozone rather than episodic Asian plumes. Asian pollution enhanced surface ozone concentrations by 5-7 ppbv over western North America in spring 2006. The 2000-2006 rise in Asian anthropogenic emissions increased this influence by 1-2 ppbv.",
author = "L. Zhang and Jacob, {D. J.} and Boersma, {K. F.} and Jaffe, {D. A.} and Olson, {J. R.} and Bowman, {K. W.} and Worden, {J. R.} and Thompson, {A. M.} and Avery, {M. A.} and Cohen, {R. C.} and Dibb, {J. E.} and Flock, {F. M.} and Fuelberg, {H. E.} and Huey, {L. G.} and McMillan, {W. W.} and Singh, {H. B.} and Weinheimer, {A. J.}",
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Zhang, L, Jacob, DJ, Boersma, KF, Jaffe, DA, Olson, JR, Bowman, KW, Worden, JR, Thompson, AM, Avery, MA, Cohen, RC, Dibb, JE, Flock, FM, Fuelberg, HE, Huey, LG, McMillan, WW, Singh, HB & Weinheimer, AJ 2008, 'Transpacific transport of ozone pollution and the effect of recent Asian emission increases on air quality in North America: An integrated analysis using satellite, aircraft, ozonesonde, and surface observations', Atmospheric Chemistry and Physics, vol. 8, no. 20, pp. 6117-6136. https://doi.org/10.5194/acp-8-6117-2008

Transpacific transport of ozone pollution and the effect of recent Asian emission increases on air quality in North America : An integrated analysis using satellite, aircraft, ozonesonde, and surface observations. / Zhang, L.; Jacob, D. J.; Boersma, K. F.; Jaffe, D. A.; Olson, J. R.; Bowman, K. W.; Worden, J. R.; Thompson, A. M.; Avery, M. A.; Cohen, R. C.; Dibb, J. E.; Flock, F. M.; Fuelberg, H. E.; Huey, L. G.; McMillan, W. W.; Singh, H. B.; Weinheimer, A. J.

In: Atmospheric Chemistry and Physics, Vol. 8, No. 20, 01.01.2008, p. 6117-6136.

Research output: Contribution to journalArticle

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AU - Zhang, L.

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AU - Boersma, K. F.

AU - Jaffe, D. A.

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AU - Thompson, A. M.

AU - Avery, M. A.

AU - Cohen, R. C.

AU - Dibb, J. E.

AU - Flock, F. M.

AU - Fuelberg, H. E.

AU - Huey, L. G.

AU - McMillan, W. W.

AU - Singh, H. B.

AU - Weinheimer, A. J.

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N2 - We use an ensemble of aircraft, satellite, sonde, and surface observations for April-May 2006 (NASA/INTEX-B aircraft campaign) to better understand the mechanisms for transpacific ozone pollution and its implications for North American air quality. The observations are interpreted with a global 3-D chemical transport model (GEOS-Chem). OMI NO2 satellite observations constrain Asian anthropogenic NOx emissions and indicate a factor of 2 increase from 2000 to 2006 in China. Satellite observations of CO from AIRS and TES indicate two major events of Asian transpacific pollution during INTEX-B. Correlation between TES CO and ozone observations shows evidence for transpacific ozone pollution. The semi-permanent Pacific High and Aleutian Low cause splitting of transpacific pollution plumes over the Northeast Pacific. The northern branch circulates around the Aleutian Low and has little impact on North America. The southern branch circulates around the Pacific High and some of that air impacts western North America. Both aircraft measurements and model results show sustained ozone production driven by peroxyacetylnitrate (PAN) decomposition in the southern branch, roughly doubling the transpacific influence from ozone produced in the Asian boundary layer. Model simulation of ozone observations at Mt. Bachelor Observatory in Oregon (2.7km altitude) indicates a mean Asian ozone pollution contribution of 9±3 ppbv to the mean observed concentration of 54 ppbv, reflecting mostly an enhancement in background ozone rather than episodic Asian plumes. Asian pollution enhanced surface ozone concentrations by 5-7 ppbv over western North America in spring 2006. The 2000-2006 rise in Asian anthropogenic emissions increased this influence by 1-2 ppbv.

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