Quantifying the Contribution of Thermally Driven Recirculation to a High-Ozone Event Along the Colorado Front Range Using Lidar
A high-ozone (O3) pollution episode was observed on 22 July 2014 during the concurrent Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) and Front Range Air Pollution and Photochemistry Experiment (FRAPPE) campaigns in n...
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| Veröffentlicht in: | Journal of geophysical research. Atmospheres 2016-09, Vol.121 (17), p.10,377-10,390 |
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| creator | Sullivan, John T. McGee, Thomas J. Langford, Andrew O. Alvarez, Raul J., II Senff, Christoph Reddy, Patrick J. Thompson, Anne M. Twigg, Laurence W. Sumnicht, Grant K. Lee, Pius Weinheimer, Andrew Knote, Christop Long, Russell W. Hoff, Raymond M. |
| description | A high-ozone (O3) pollution episode was observed on 22 July 2014 during the concurrent Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) and Front Range Air Pollution and Photochemistry Experiment (FRAPPE) campaigns in northern Colorado. Surface O3 monitors at three regulatory sites exceeded the Environmental Protection Agency (EPA) 2008 National Ambient Air Quality Standard (NAAQS) daily maximum 8h average (MDA8) of 75ppbv. To further characterize the polluted air mass and assess transport throughout the event, measurements are presented from O3 and wind profilers, O3-sondes, aircraft, and surface-monitoring sites. Observations indicate that thermally driven upslope flow was established throughout the Colorado Front Range during the pollution episode. As the thermally driven flow persisted throughout the day, O3 concentrations increased and affected high-elevation Rocky Mountain sites. These observations, coupled with modeling analyses, demonstrate a westerly return flow of polluted air aloft, indicating that the mountain-plains solenoid circulation was established and impacted surface conditions within the Front Range. |
| doi_str_mv | 10.1002/2016JD025229 |
| format | Article |
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Surface O3 monitors at three regulatory sites exceeded the Environmental Protection Agency (EPA) 2008 National Ambient Air Quality Standard (NAAQS) daily maximum 8h average (MDA8) of 75ppbv. To further characterize the polluted air mass and assess transport throughout the event, measurements are presented from O3 and wind profilers, O3-sondes, aircraft, and surface-monitoring sites. Observations indicate that thermally driven upslope flow was established throughout the Colorado Front Range during the pollution episode. As the thermally driven flow persisted throughout the day, O3 concentrations increased and affected high-elevation Rocky Mountain sites. These observations, coupled with modeling analyses, demonstrate a westerly return flow of polluted air aloft, indicating that the mountain-plains solenoid circulation was established and impacted surface conditions within the Front Range.</description><identifier>ISSN: 2169-897X</identifier><identifier>EISSN: 2169-8996</identifier><identifier>DOI: 10.1002/2016JD025229</identifier><language>eng</language><publisher>Goddard Space Flight Center: American Geophysical Union</publisher><subject>Air masses ; Air pollution ; Air quality ; air quality modeling ; Air quality standards ; Atmospheric circulation ; Circulation ; Environment protection ; Environmental protection ; Geophysics ; Geosciences (General) ; Lidar ; Meteorology ; Mountains ; Outdoor air quality ; Ozone ; Photochemistry ; Pollution abatement ; Pollution dispersion ; remote sensing ; Return flow ; TOLNet ; Transport</subject><ispartof>Journal of geophysical research. Atmospheres, 2016-09, Vol.121 (17), p.10,377-10,390</ispartof><rights>2016. American Geophysical Union. 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Atmospheres</title><description>A high-ozone (O3) pollution episode was observed on 22 July 2014 during the concurrent Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) and Front Range Air Pollution and Photochemistry Experiment (FRAPPE) campaigns in northern Colorado. Surface O3 monitors at three regulatory sites exceeded the Environmental Protection Agency (EPA) 2008 National Ambient Air Quality Standard (NAAQS) daily maximum 8h average (MDA8) of 75ppbv. To further characterize the polluted air mass and assess transport throughout the event, measurements are presented from O3 and wind profilers, O3-sondes, aircraft, and surface-monitoring sites. Observations indicate that thermally driven upslope flow was established throughout the Colorado Front Range during the pollution episode. As the thermally driven flow persisted throughout the day, O3 concentrations increased and affected high-elevation Rocky Mountain sites. 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McGee, Thomas J. ; Langford, Andrew O. ; Alvarez, Raul J., II ; Senff, Christoph ; Reddy, Patrick J. ; Thompson, Anne M. ; Twigg, Laurence W. ; Sumnicht, Grant K. ; Lee, Pius ; Weinheimer, Andrew ; Knote, Christop ; Long, Russell W. ; Hoff, Raymond M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3953-cc8c8f29837cbe3f10d128fc42a7b2a80049e9d8b0a7693ec72ef7667030cd7c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Air masses</topic><topic>Air pollution</topic><topic>Air quality</topic><topic>air quality modeling</topic><topic>Air quality standards</topic><topic>Atmospheric circulation</topic><topic>Circulation</topic><topic>Environment protection</topic><topic>Environmental protection</topic><topic>Geophysics</topic><topic>Geosciences (General)</topic><topic>Lidar</topic><topic>Meteorology</topic><topic>Mountains</topic><topic>Outdoor air quality</topic><topic>Ozone</topic><topic>Photochemistry</topic><topic>Pollution abatement</topic><topic>Pollution dispersion</topic><topic>remote sensing</topic><topic>Return flow</topic><topic>TOLNet</topic><topic>Transport</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sullivan, John T.</creatorcontrib><creatorcontrib>McGee, Thomas J.</creatorcontrib><creatorcontrib>Langford, Andrew O.</creatorcontrib><creatorcontrib>Alvarez, Raul J., II</creatorcontrib><creatorcontrib>Senff, Christoph</creatorcontrib><creatorcontrib>Reddy, Patrick J.</creatorcontrib><creatorcontrib>Thompson, Anne M.</creatorcontrib><creatorcontrib>Twigg, Laurence W.</creatorcontrib><creatorcontrib>Sumnicht, Grant K.</creatorcontrib><creatorcontrib>Lee, Pius</creatorcontrib><creatorcontrib>Weinheimer, Andrew</creatorcontrib><creatorcontrib>Knote, Christop</creatorcontrib><creatorcontrib>Long, Russell W.</creatorcontrib><creatorcontrib>Hoff, Raymond M.</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Pollution Abstracts</collection><jtitle>Journal of geophysical research. Atmospheres</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sullivan, John T.</au><au>McGee, Thomas J.</au><au>Langford, Andrew O.</au><au>Alvarez, Raul J., II</au><au>Senff, Christoph</au><au>Reddy, Patrick J.</au><au>Thompson, Anne M.</au><au>Twigg, Laurence W.</au><au>Sumnicht, Grant K.</au><au>Lee, Pius</au><au>Weinheimer, Andrew</au><au>Knote, Christop</au><au>Long, Russell W.</au><au>Hoff, Raymond M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantifying the Contribution of Thermally Driven Recirculation to a High-Ozone Event Along the Colorado Front Range Using Lidar</atitle><jtitle>Journal of geophysical research. Atmospheres</jtitle><date>2016-09-01</date><risdate>2016</risdate><volume>121</volume><issue>17</issue><spage>10,377</spage><epage>10,390</epage><pages>10,377-10,390</pages><issn>2169-897X</issn><eissn>2169-8996</eissn><abstract>A high-ozone (O3) pollution episode was observed on 22 July 2014 during the concurrent Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) and Front Range Air Pollution and Photochemistry Experiment (FRAPPE) campaigns in northern Colorado. Surface O3 monitors at three regulatory sites exceeded the Environmental Protection Agency (EPA) 2008 National Ambient Air Quality Standard (NAAQS) daily maximum 8h average (MDA8) of 75ppbv. To further characterize the polluted air mass and assess transport throughout the event, measurements are presented from O3 and wind profilers, O3-sondes, aircraft, and surface-monitoring sites. Observations indicate that thermally driven upslope flow was established throughout the Colorado Front Range during the pollution episode. As the thermally driven flow persisted throughout the day, O3 concentrations increased and affected high-elevation Rocky Mountain sites. These observations, coupled with modeling analyses, demonstrate a westerly return flow of polluted air aloft, indicating that the mountain-plains solenoid circulation was established and impacted surface conditions within the Front Range.</abstract><cop>Goddard Space Flight Center</cop><pub>American Geophysical Union</pub><doi>10.1002/2016JD025229</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-2932-7061</orcidid><oa>free_for_read</oa></addata></record> |
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| issn | 2169-897X 2169-8996 |
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| source | Wiley Free Content; Wiley Online Library Journals Frontfile Complete; NASA Technical Reports Server; Alma/SFX Local Collection |
| subjects | Air masses Air pollution Air quality air quality modeling Air quality standards Atmospheric circulation Circulation Environment protection Environmental protection Geophysics Geosciences (General) Lidar Meteorology Mountains Outdoor air quality Ozone Photochemistry Pollution abatement Pollution dispersion remote sensing Return flow TOLNet Transport |
| title | Quantifying the Contribution of Thermally Driven Recirculation to a High-Ozone Event Along the Colorado Front Range Using Lidar |
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