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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>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acp-7-1293-2007</article-id>
<title-group>
<article-title>MAX-DOAS detection of glyoxal during ICARTT 2004</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Sinreich</surname>
<given-names>R.</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>Volkamer</surname>
<given-names>R.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Filsinger</surname>
<given-names>F.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</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>Frieß</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>Kern</surname>
<given-names>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>Platt</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>Sebastián</surname>
<given-names>O.</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>Wagner</surname>
<given-names>T.</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>Institut für Umweltphysik, Universität Heidelberg, Heidelberg, Germany</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Massachusetts Institute of Technology, Cambridge, MA, USA</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>now at: University of California, San Diego, La Jolla, CA, USA</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>now at: Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>now at: Max-Planck Institute for Chemistry, Mainz, Germany</addr-line>
</aff>
<pub-date pub-type="epub">
<day>22</day>
<month>02</month>
<year>2007</year>
</pub-date>
<volume>7</volume>
<issue>5</issue>
<fpage>1293</fpage>
<lpage>1303</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/7/1293/2007/acp-7-1293-2007.html">This article is available from http://www.atmos-chem-phys.net/7/1293/2007/acp-7-1293-2007.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys.net/7/1293/2007/acp-7-1293-2007.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys.net/7/1293/2007/acp-7-1293-2007.pdf</self-uri>
<abstract>
<p>The direct detection of glyoxal (CHOCHO), the smallest &amp;alpha;-dicarbonyl,
in the open atmosphere by active differential optical absorption
spectroscopy (DOAS) has recently been demonstrated (Volkamer et al., 2005a)
and triggered the very recent successful detection of CHOCHO from space
(Kurosu et al., 2005; Wittrock et al., 2006; Beirle et al., 2006). Here we
report the first comprehensive analysis of CHOCHO by passive multi axis
differential optical absorption spectroscopy (MAX-DOAS). CHOCHO and NO&lt;sub&gt;2&lt;/sub&gt;
slant column measurements were conducted at the Massachusetts Institute of
Technology (MIT), Cambridge, USA, and on board the research vessel Ron Brown
in the Gulf of Maine as part of the International Consortium for Atmospheric
Research on Transport and Transformation (ICARTT) 2004 campaign. For a day
with nearly clear sky conditions, radiative transfer modeling was employed
to derive diurnal CHOCHO mixing ratios in the planetary boundary layer (PBL)
for both sites. CHOCHO mixing ratios at MIT varied from 40 to 140 ppt, with
peak values observed around noon. Mixing ratios over the Gulf of Maine were
found to be up to 2.5 times larger than at MIT. The CHOCHO-to-NO&lt;sub&gt;2&lt;/sub&gt; ratio
at MIT was &amp;lt;0.03, and enhancements of this ratio by up to two orders of
magnitude were found over the Gulf of Maine. This paper focuses on the
methodological aspects involved with MAX-DOAS measurements of CHOCHO.</p>
</abstract>
<counts><page-count count="11"/></counts>
</article-meta>
</front>
<body/>
<back>
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