Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations
During April 2008, as part of the International Polar Year (IPY), a number of ground-based and aircraft campaigns were carried out in the North American Arctic region (e.g., ARCTAS, ARCPAC). The widespread presence during this period of biomass burning effluent, both gaseous and particulate, has bee...
Published in: | Atmospheric Environment |
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Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier Ltd.
2010
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-712 https://doi.org/10.1016/j.atmosenv.2010.07.004 |
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ftncar:oai:drupal-site.org:articles_10885 2023-07-30T04:02:06+02:00 Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations Oltmans, S. (author) Lefohn, A. (author) Harris, J. (author) Tarasick, D. (author) Thompson, A. (author) Wernli, H. (author) Johnson, B. (author) Novelli, P. (author) Montzka, S. (author) Ray, J. (author) Patrick, L. (author) Sweeney, C. (author) Jefferson, A. (author) Dann, T. (author) Davies, J. (author) Shapiro, Melvyn (author) Holben, B. (author) 2010-11-01 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-712 https://doi.org/10.1016/j.atmosenv.2010.07.004 en eng Elsevier Ltd. Atmospheric Environment http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-712 doi:10.1016/j.atmosenv.2010.07.004 wos: 000283568300021 ark:/85065/d7j103rj Copyright 2010 Elsevier. Text article 2010 ftncar https://doi.org/10.1016/j.atmosenv.2010.07.004 2023-07-17T18:22:09Z During April 2008, as part of the International Polar Year (IPY), a number of ground-based and aircraft campaigns were carried out in the North American Arctic region (e.g., ARCTAS, ARCPAC). The widespread presence during this period of biomass burning effluent, both gaseous and particulate, has been reported. Unusually high ozone readings for this time of year were recorded at surface ozone monitoring sites from northern Alaska to northern California. At Barrow, Alaska, the northernmost point in the United States, the highest April ozone readings recorded at the surface (hourly average values >55 ppbv) in 37 years of observation were measured on April 19, 2008. At Denali National Park in central Alaska, an hourly average of 79 ppbv was recorded during an 8-h period in which the average was over 75 ppbv, exceeding the ozone ambient air quality standard threshold value in the U.S. Elevated ozone (>60 ppbv) persisted almost continuously from April 19-23 at the monitoring site during this event. At a coastal site in northern California (Trinidad Head), hourly ozone readings were >50 ppbv almost continuously for a 35-h period from April 18-20. At several sites in northern California, located to the east of Trinidad Head, numerous occurrences of ozone readings exceeding 60 ppbv were recorded during April 2008. Ozone profiles from an extensive series of balloon soundings showed lower tropospheric features at ∼1-6 km with enhanced ozone during the times of elevated ozone amounts at surface sites in western Canada and the U.S. Based on extensive trajectory calculations, biomass burning in regions of southern Russia was identified as the likely source of the observed ozone enhancements. Ancillary measurements of atmospheric constituents and optical properties (aerosol optical thickness) supported the presence of a burning plume at several locations. At two coastal sites (Trinidad Head and Vancouver Island), profiles of a large suite of gases were measured from airborne flask samples taken during probable ... Article in Journal/Newspaper Arctic Barrow International Polar Year IPY Alaska OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Canada Trinidad ENVELOPE(-60.734,-60.734,-63.816,-63.816) Atmospheric Environment 44 35 4497 4509 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
During April 2008, as part of the International Polar Year (IPY), a number of ground-based and aircraft campaigns were carried out in the North American Arctic region (e.g., ARCTAS, ARCPAC). The widespread presence during this period of biomass burning effluent, both gaseous and particulate, has been reported. Unusually high ozone readings for this time of year were recorded at surface ozone monitoring sites from northern Alaska to northern California. At Barrow, Alaska, the northernmost point in the United States, the highest April ozone readings recorded at the surface (hourly average values >55 ppbv) in 37 years of observation were measured on April 19, 2008. At Denali National Park in central Alaska, an hourly average of 79 ppbv was recorded during an 8-h period in which the average was over 75 ppbv, exceeding the ozone ambient air quality standard threshold value in the U.S. Elevated ozone (>60 ppbv) persisted almost continuously from April 19-23 at the monitoring site during this event. At a coastal site in northern California (Trinidad Head), hourly ozone readings were >50 ppbv almost continuously for a 35-h period from April 18-20. At several sites in northern California, located to the east of Trinidad Head, numerous occurrences of ozone readings exceeding 60 ppbv were recorded during April 2008. Ozone profiles from an extensive series of balloon soundings showed lower tropospheric features at ∼1-6 km with enhanced ozone during the times of elevated ozone amounts at surface sites in western Canada and the U.S. Based on extensive trajectory calculations, biomass burning in regions of southern Russia was identified as the likely source of the observed ozone enhancements. Ancillary measurements of atmospheric constituents and optical properties (aerosol optical thickness) supported the presence of a burning plume at several locations. At two coastal sites (Trinidad Head and Vancouver Island), profiles of a large suite of gases were measured from airborne flask samples taken during probable ... |
author2 |
Oltmans, S. (author) Lefohn, A. (author) Harris, J. (author) Tarasick, D. (author) Thompson, A. (author) Wernli, H. (author) Johnson, B. (author) Novelli, P. (author) Montzka, S. (author) Ray, J. (author) Patrick, L. (author) Sweeney, C. (author) Jefferson, A. (author) Dann, T. (author) Davies, J. (author) Shapiro, Melvyn (author) Holben, B. (author) |
format |
Article in Journal/Newspaper |
title |
Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations |
spellingShingle |
Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations |
title_short |
Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations |
title_full |
Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations |
title_fullStr |
Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations |
title_full_unstemmed |
Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations |
title_sort |
enhanced ozone over western north america from biomass burning in eurasia during april 2008 as seen in surface and profile observations |
publisher |
Elsevier Ltd. |
publishDate |
2010 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-712 https://doi.org/10.1016/j.atmosenv.2010.07.004 |
long_lat |
ENVELOPE(-60.734,-60.734,-63.816,-63.816) |
geographic |
Arctic Canada Trinidad |
geographic_facet |
Arctic Canada Trinidad |
genre |
Arctic Barrow International Polar Year IPY Alaska |
genre_facet |
Arctic Barrow International Polar Year IPY Alaska |
op_relation |
Atmospheric Environment http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-712 doi:10.1016/j.atmosenv.2010.07.004 wos: 000283568300021 ark:/85065/d7j103rj |
op_rights |
Copyright 2010 Elsevier. |
op_doi |
https://doi.org/10.1016/j.atmosenv.2010.07.004 |
container_title |
Atmospheric Environment |
container_volume |
44 |
container_issue |
35 |
container_start_page |
4497 |
op_container_end_page |
4509 |
_version_ |
1772812826626228224 |