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<front>
<journal-meta>
<journal-id journal-id-type="publisher">ACPD</journal-id>
<journal-title-group>
<journal-title>Atmospheric Chemistry and Physics Discussions</journal-title>
<abbrev-journal-title abbrev-type="publisher">ACPD</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1680-7375</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/acpd-11-4355-2011</article-id>
<title-group>
<article-title>The impact of temperature changes on summer time ozone and its&apos; precursors in the Eastern Mediterranean</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Im</surname>
<given-names>U.</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>Markakis</surname>
<given-names>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>Poupkou</surname>
<given-names>A.</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>Melas</surname>
<given-names>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>Unal</surname>
<given-names>A.</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>Gerasopoulos</surname>
<given-names>E.</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>Daskalakis</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>Kanakidou</surname>
<given-names>M.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Environmental Chemical Processes Laboratory (ECPL), Department of Chemistry, University of Crete, Heraklion, Greece</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Aristotle University of Thessaloniki, Department of Physics, Laboratory of Atmospheric Physics, Thessaloniki, Greece</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, Greece</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Istanbul Technical University, Eurasia Institute of Earth Sciences, Istanbul, Turkey</addr-line>
</aff>
<pub-date pub-type="epub">
<day>07</day>
<month>02</month>
<year>2011</year>
</pub-date>
<volume>11</volume>
<issue>2</issue>
<fpage>4355</fpage>
<lpage>4398</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-discuss.net/11/4355/2011/acpd-11-4355-2011.html">This article is available from http://www.atmos-chem-phys-discuss.net/11/4355/2011/acpd-11-4355-2011.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys-discuss.net/11/4355/2011/acpd-11-4355-2011.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys-discuss.net/11/4355/2011/acpd-11-4355-2011.pdf</self-uri>
<abstract>
<p>Changes in temperature due to variability in meteorology and climate change
are expected to significantly impact atmospheric composition. The
Mediterranean is a climate sensitive region and includes megacities like
Istanbul and large urban agglomerations such as Athens. The effect of
temperature changes on gaseous air pollutant levels and the atmospheric
processes that are controlling them in the Eastern Mediterranean are here
investigated. The WRF/CMAQ mesoscale modeling system is used, coupled with
the MEGAN model for the processing of biogenic volatile organic compound
emissions. A set of temperature perturbations (spanning from 1 to 5 K) is
applied on a base case simulation corresponding to July 2004. The results
indicate that the Eastern Mediterranean basin acts as a reservoir of
pollutants and their precursor emissions from large urban agglomerations.
During summer, chemistry is a major sink at these urban areas near the
surface, and a minor contributor at downwind areas. On average, the
atmospheric processes are more effective within the first 1000 m. The
response rate of biogenic emissions to temperature changes is calculated to
be 9&amp;plusmn;3% K&lt;sup&gt;−1&lt;/sup&gt;. Ozone concentrations respond almost linearly to
the changes in the ambient temperature with rates of 1&amp;plusmn;0.1 ppb O&lt;sub&gt;3&lt;/sub&gt;
K&lt;sup&gt;−1&lt;/sup&gt; for all studied urban and receptor stations except for Istanbul,
where a 0.4&amp;plusmn;0.1 ppb O&lt;sub&gt;3&lt;/sub&gt; K&lt;sup&gt;−1&lt;/sup&gt; change rate is calculated, which is
almost half of the domain-averaged increase of 0.9&amp;plusmn;0.1 ppb O&lt;sub&gt;3&lt;/sub&gt;
K&lt;sup&gt;−1&lt;/sup&gt;. The computed changes in atmospheric processes are also linearly
related with temperature changes.</p>
</abstract>
<counts><page-count count="44"/></counts>
</article-meta>
</front>
<body/>
<back>
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