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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article" dtd-version="3.0" xml:lang="en">
<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>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acp-10-10607-2010</article-id>
<title-group>
<article-title>NO&lt;sub&gt;x&lt;/sub&gt; and O&lt;sub&gt;3&lt;/sub&gt; above a tropical rainforest: an analysis with a global and box model</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Pike</surname>
<given-names>R. C.</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>Lee</surname>
<given-names>J. D.</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>Young</surname>
<given-names>P. J.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Carver</surname>
<given-names>G. D.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Yang</surname>
<given-names>X.</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>Warwick</surname>
<given-names>N.</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>Moller</surname>
<given-names>S.</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>Misztal</surname>
<given-names>P.</given-names>
</name>
<xref ref-type="aff" rid="aff7">
<sup>7</sup>
</xref>
<xref ref-type="aff" rid="aff8">
<sup>8</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Langford</surname>
<given-names>B.</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>Stewart</surname>
<given-names>D.</given-names>
</name>
<xref ref-type="aff" rid="aff10">
<sup>10</sup>
</xref>
<xref ref-type="aff" rid="aff11">
<sup>11</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Reeves</surname>
<given-names>C. E.</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>Hewitt</surname>
<given-names>C. 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>Pyle</surname>
<given-names>J. A.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Centre for Atmospheric Science, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>National Centre for Atmospheric Science (NCAS), University of York, Heslington, York, YO10 5DD, UK</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Cooperative Institute for Research in the Environmental Sciences, University of Colorado, Boulder, CO, USA</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>NOAA Earth System Research Laboratory, Boulder, CO, USA</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>National Centre for Atmospheric Science - Climate, University of Cambridge, USA</addr-line>
</aff>
<aff id="aff6">
<label>6</label>
<addr-line>Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK</addr-line>
</aff>
<aff id="aff7">
<label>7</label>
<addr-line>Centre for Ecology and Hydrology Edinburgh, Bush Estate, Penicuik, Midlothian, EH26 0QB, UK</addr-line>
</aff>
<aff id="aff8">
<label>8</label>
<addr-line>The University of Edinburgh, School of Chemistry, Joseph Black Building, West Mains Road, Edinburgh, EH9 3JJ, UK</addr-line>
</aff>
<aff id="aff9">
<label>9</label>
<addr-line>Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK</addr-line>
</aff>
<aff id="aff10">
<label>10</label>
<addr-line>School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK</addr-line>
</aff>
<aff id="aff11">
<label>11</label>
<addr-line>now at: Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AH, UK</addr-line>
</aff>
<pub-date pub-type="epub">
<day>11</day>
<month>11</month>
<year>2010</year>
</pub-date>
<volume>10</volume>
<issue>21</issue>
<fpage>10607</fpage>
<lpage>10620</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/10/10607/2010/acp-10-10607-2010.html">This article is available from http://www.atmos-chem-phys.net/10/10607/2010/acp-10-10607-2010.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys.net/10/10607/2010/acp-10-10607-2010.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys.net/10/10607/2010/acp-10-10607-2010.pdf</self-uri>
<abstract>
<p>A cross-platform field campaign, OP3, was conducted in the state of Sabah in
Malaysian Borneo between April and July of 2008. Among the suite of
observations recorded, the campaign included measurements of NO&lt;sub&gt;x&lt;/sub&gt; and
O&lt;sub&gt;3&lt;/sub&gt; – crucial outputs of any model chemistry mechanism. We describe the
measurements of these species made from both the ground site and aircraft. We
then use the output from two resolutions of the chemistry transport model
p-TOMCAT to illustrate the ability of a global model chemical mechanism to
capture the chemistry at the rainforest site. The basic model performance is
good for NO&lt;sub&gt;x&lt;/sub&gt; and poor for ozone. A box model containing the same chemical
mechanism is used to explore the results of the global model in more depth
and make comparisons between the two. Without some parameterization of the
nighttime boundary layer – free troposphere mixing (i.e. the use of a dilution
parameter), the box model does not reproduce the observations, pointing to
the importance of adequately representing physical processes for comparisons
with surface measurements. We conclude with a discussion of box model budget
calculations of chemical reaction fluxes, deposition and mixing, and compare
these results to output from p-TOMCAT. These show the same chemical mechanism
behaves similarly in both models, but that emissions and advection play
particularly strong roles in influencing the comparison to surface
measurements.</p>
</abstract>
<counts><page-count count="14"/></counts>
</article-meta>
</front>
<body/>
<back>
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