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<front>
<journal-meta>
<journal-id journal-id-type="publisher">ACP</journal-id>
<journal-title-group>
<journal-title>Atmospheric Chemistry and Physics</journal-title>
<abbrev-journal-title abbrev-type="publisher">ACP</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1680-7324</issn>
<publisher><publisher-name>Copernicus GmbH</publisher-name>
<publisher-loc>GÃ¶ttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acp-12-2077-2012</article-id>
<title-group>
<article-title>The influence of boreal biomass burning emissions on the distribution of tropospheric ozone over North America and the North Atlantic during 2010</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Parrington</surname>
<given-names>M.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Palmer</surname>
<given-names>P. I.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Henze</surname>
<given-names>D. K.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Tarasick</surname>
<given-names>D. W.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Hyer</surname>
<given-names>E. J.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Owen</surname>
<given-names>R. C.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Helmig</surname>
<given-names>D.</given-names>
</name>
<xref ref-type="aff" rid="aff6">
<sup>6</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Clerbaux</surname>
<given-names>C.</given-names>
</name>
<xref ref-type="aff" rid="aff7">
<sup>7</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Bowman</surname>
<given-names>K. W.</given-names>
</name>
<xref ref-type="aff" rid="aff8">
<sup>8</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Deeter</surname>
<given-names>M. N.</given-names>
</name>
<xref ref-type="aff" rid="aff9">
<sup>9</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Barratt</surname>
<given-names>E. M.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Coheur</surname>
<given-names>P.-F.</given-names>
</name>
<xref ref-type="aff" rid="aff10">
<sup>10</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Hurtmans</surname>
<given-names>D.</given-names>
</name>
<xref ref-type="aff" rid="aff10">
<sup>10</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Jiang</surname>
<given-names>Z.</given-names>
</name>
<xref ref-type="aff" rid="aff11">
<sup>11</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>George</surname>
<given-names>M.</given-names>
</name>
<xref ref-type="aff" rid="aff7">
<sup>7</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Worden</surname>
<given-names>J. R.</given-names>
</name>
<xref ref-type="aff" rid="aff8">
<sup>8</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>School of GeoSciences, The University of Edinburgh, Edinburgh, UK</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Department of Mechanical Engineering, University of Colorado, Boulder, Colorado, USA</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Air Quality Research Division, Environment Canada, Downsview, Ontario, Canada</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Marine Meteorology Division, Naval Research Laboratory, Monterey, California, USA</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, Michigan, USA</addr-line>
</aff>
<aff id="aff6">
<label>6</label>
<addr-line>Institute of Arctic and Alpine Research, University of Colorado, Boulder, Colorado, USA</addr-line>
</aff>
<aff id="aff7">
<label>7</label>
<addr-line>UPMC Univ. Paris 06; UniversitÃ© Versailles St.-Quentin; CNRS/INSU, LATMOS-IPSL, Paris, France</addr-line>
</aff>
<aff id="aff8">
<label>8</label>
<addr-line>Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA</addr-line>
</aff>
<aff id="aff9">
<label>9</label>
<addr-line>Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, Colorado, USA</addr-line>
</aff>
<aff id="aff10">
<label>10</label>
<addr-line>Spectroscopie de l&apos;AtmosphÃ¨re, Service de Chimie Quantique et Photophysique, UniversitÃ© Libre de Bruxelles (ULB), Brussels, Belgium</addr-line>
</aff>
<aff id="aff11">
<label>11</label>
<addr-line>Department of Physics, University of Toronto, Toronto, Ontario, Canada</addr-line>
</aff>
<pub-date pub-type="epub">
<day>21</day>
<month>02</month>
<year>2012</year>
</pub-date>
<volume>12</volume>
<issue>4</issue>
<fpage>2077</fpage>
<lpage>2098</lpage>
<permissions>
<license xlink:type="simple">
<license-p>This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.atmos-chem-phys.net/12/2077/2012/acp-12-2077-2012.html">This article is available from http://www.atmos-chem-phys.net/12/2077/2012/acp-12-2077-2012.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys.net/12/2077/2012/acp-12-2077-2012.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys.net/12/2077/2012/acp-12-2077-2012.pdf</self-uri>
<abstract>
<p>We have analysed the sensitivity of the tropospheric ozone distribution over
North America and the North Atlantic to boreal biomass burning emissions
during the summer of 2010 using the GEOS-Chem 3-D global tropospheric
chemical transport model and observations from in situ and satellite
instruments. We show that the model ozone distribution is consistent with
observations from the Pico Mountain Observatory in the Azores, ozonesondes
across Canada, and the Tropospheric Emission Spectrometer (TES) and Infrared
Atmospheric Sounding Instrument (IASI) satellite instruments. Mean biases
between the model and observed ozone mixing ratio in the free troposphere
were less than 10 ppbv. We used the adjoint of GEOS-Chem to show the model
ozone distribution in the free troposphere over Maritime Canada is largely
sensitive to NO&lt;sub&gt;x&lt;/sub&gt; emissions from biomass burning sources in Central
Canada, lightning sources in the central US, and anthropogenic sources in the
eastern US and south-eastern Canada. We also used the adjoint of GEOS-Chem to
evaluate the Fire Locating And Monitoring of Burning Emissions (FLAMBE)
inventory through assimilation of CO observations from the Measurements Of
Pollution In The Troposphere (MOPITT) satellite instrument. The CO inversion
showed that, on average, the FLAMBE emissions needed to be reduced to 89%
of their original values, with scaling factors ranging from 12% to
102%, to fit the MOPITT observations in the boreal regions. Applying the
CO scaling factors to all species emitted from boreal biomass burning sources
led to a decrease of the model tropospheric distributions of CO, PAN, and
NO&lt;sub&gt;x&lt;/sub&gt; by as much as âˆ’20 ppbv, âˆ’50 pptv, and âˆ’20 pptv
respectively. The modification of the biomass burning emission estimates
reduced the model ozone distribution by approximately âˆ’3 ppbv (âˆ’8%)
and on average improved the agreement of the model ozone distribution
compared to the observations throughout the free troposphere, reducing the
mean model bias from 5.5 to 4.0 ppbv for the Pico Mountain Observatory, 3.0
to 0.9 ppbv for ozonesondes, 2.0 to 0.9 ppbv for TES, and 2.8 to 1.4 ppbv
for IASI.</p>
</abstract>
<counts><page-count count="22"/></counts>
</article-meta>
</front>
<body/>
<back>
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