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
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...
Published in: | Atmospheric Chemistry and Physics |
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Language: | English |
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-490 https://doi.org/10.5194/acp-8-6117-2008 |
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ftncar:oai:drupal-site.org:articles_6278 2023-10-01T03:49:59+02:00 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. (author) Jacob, D. (author) Boersma, K. (author) Jaffe, D. (author) Olson, J. (author) Bowman, K. (author) Worden, J. (author) Thompson, A. (author) Avery, M. (author) Cohen, R. (author) Dibb, J. (author) Flocke, Frank (author) Fuelberg, H. (author) Huey, L. (author) McMillan, W. (author) Singh, H. (author) Weinheimer, Andrew (author) 2008-10-22 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-490 https://doi.org/10.5194/acp-8-6117-2008 en eng Copernicus Publications Atmospheric Chemistry and Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-490 doi:10.5194/acp-8-6117-2008 ark:/85065/d77081mt Copyright Authors 2009. This work is distributed under the Creative Commons Attribution 3.0 License Text article 2008 ftncar https://doi.org/10.5194/acp-8-6117-2008 2023-09-04T18:28:02Z 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 (2.7 km 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. Article in Journal/Newspaper aleutian low OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Pacific Atmospheric Chemistry and Physics 8 20 6117 6136 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
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 (2.7 km 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. |
author2 |
Zhang, L. (author) Jacob, D. (author) Boersma, K. (author) Jaffe, D. (author) Olson, J. (author) Bowman, K. (author) Worden, J. (author) Thompson, A. (author) Avery, M. (author) Cohen, R. (author) Dibb, J. (author) Flocke, Frank (author) Fuelberg, H. (author) Huey, L. (author) McMillan, W. (author) Singh, H. (author) Weinheimer, Andrew (author) |
format |
Article in Journal/Newspaper |
title |
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 |
spellingShingle |
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 |
title_short |
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 |
title_full |
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 |
title_fullStr |
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 |
title_full_unstemmed |
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 |
title_sort |
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 |
publisher |
Copernicus Publications |
publishDate |
2008 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-490 https://doi.org/10.5194/acp-8-6117-2008 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
aleutian low |
genre_facet |
aleutian low |
op_relation |
Atmospheric Chemistry and Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-490 doi:10.5194/acp-8-6117-2008 ark:/85065/d77081mt |
op_rights |
Copyright Authors 2009. This work is distributed under the Creative Commons Attribution 3.0 License |
op_doi |
https://doi.org/10.5194/acp-8-6117-2008 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
8 |
container_issue |
20 |
container_start_page |
6117 |
op_container_end_page |
6136 |
_version_ |
1778517944701026304 |