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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-7-257-2007</article-id>
<title-group>
<article-title>Validation of MIPAS ClONO&lt;sub&gt;2&lt;/sub&gt; measurements</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Höpfner</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>von Clarmann</surname>
<given-names>T.</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>Fischer</surname>
<given-names>H.</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>Funke</surname>
<given-names>B.</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>Glatthor</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>Grabowski</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>Kellmann</surname>
<given-names>S.</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>Kiefer</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>Linden</surname>
<given-names>A.</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>Milz</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>Steck</surname>
<given-names>T.</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>Stiller</surname>
<given-names>G. P.</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>Bernath</surname>
<given-names>P.</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>Blom</surname>
<given-names>C. E.</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>Blumenstock</surname>
<given-names>Th.</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>Boone</surname>
<given-names>C.</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>Chance</surname>
<given-names>K.</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>Coffey</surname>
<given-names>M. T.</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>Friedl-Vallon</surname>
<given-names>F.</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>Griffith</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>Hannigan</surname>
<given-names>J. W.</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>Hase</surname>
<given-names>F.</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>Jones</surname>
<given-names>N.</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>Jucks</surname>
<given-names>K. W.</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>Keim</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>Kleinert</surname>
<given-names>A.</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>Kouker</surname>
<given-names>W.</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>Liu</surname>
<given-names>G. Y.</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>Mahieu</surname>
<given-names>E.</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>Mellqvist</surname>
<given-names>J.</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>Mikuteit</surname>
<given-names>S.</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>Notholt</surname>
<given-names>J.</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>Oelhaf</surname>
<given-names>H.</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>Piesch</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>Reddmann</surname>
<given-names>T.</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>Ruhnke</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>Schneider</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>Strandberg</surname>
<given-names>A.</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>Toon</surname>
<given-names>G.</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>Walker</surname>
<given-names>K. A.</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>Warneke</surname>
<given-names>T.</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>Wetzel</surname>
<given-names>G.</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>Wood</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="aff12">
<sup>12</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Zander</surname>
<given-names>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>Institut für Meteorologie und Klimaforschung, Forschungszentrum Karlsruhe, Germany</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Instituto de Astrof{í}sica de Andaluc{í}a, Granada, Spain</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Department of Chemistry, University of Waterloo, Ontario, Canada</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Harvard-Smithsonian Center for Astrophysics, Atomic and Molecular Physics Division, Cambridge, MA, USA</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO, USA</addr-line>
</aff>
<aff id="aff6">
<label>6</label>
<addr-line>Department of Chemistry, University of Wollongong, Australia</addr-line>
</aff>
<aff id="aff7">
<label>7</label>
<addr-line>Harvard-Smithsonian Center for Astrophysics, Optical and Infrared Astronomy Division, Cambridge, MA, USA</addr-line>
</aff>
<aff id="aff8">
<label>8</label>
<addr-line>Institut d&apos;Astrophysique et de Géophysique, Université de Liège, Belgium</addr-line>
</aff>
<aff id="aff9">
<label>9</label>
<addr-line>Department of Radio and Space Science, Chalmers University of Technology, Göteborg, Sweden</addr-line>
</aff>
<aff id="aff10">
<label>10</label>
<addr-line>Institut für Umweltphysik, Universität Bremen, Germany</addr-line>
</aff>
<aff id="aff11">
<label>11</label>
<addr-line>Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA</addr-line>
</aff>
<aff id="aff12">
<label>12</label>
<addr-line>National Institute of Water and Atmospheric Research, Lauder, New-Zealand</addr-line>
</aff>
<pub-date pub-type="epub">
<day>18</day>
<month>01</month>
<year>2007</year>
</pub-date>
<volume>7</volume>
<issue>1</issue>
<fpage>257</fpage>
<lpage>281</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/7/257/2007/acp-7-257-2007.html">This article is available from http://www.atmos-chem-phys.net/7/257/2007/acp-7-257-2007.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys.net/7/257/2007/acp-7-257-2007.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys.net/7/257/2007/acp-7-257-2007.pdf</self-uri>
<abstract>
<p>Altitude profiles of ClONO&lt;sub&gt;2&lt;/sub&gt; retrieved with the IMK (Institut für
Meteorologie und Klimaforschung) science-oriented data processor from
MIPAS/Envisat (Michelson Interferometer for Passive Atmospheric Sounding on
Envisat) mid-infrared limb emission measurements between July 2002 and March
2004 have been validated by comparison with balloon-borne (Mark IV, FIRS2,
MIPAS-B), airborne (MIPAS-STR), ground-based (Spitsbergen, Thule, Kiruna,
Harestua, Jungfraujoch, Iza&amp;ntilde;a, Wollongong, Lauder), and spaceborne
(ACE-FTS) observations. With few exceptions we found very good agreement
between these instruments and MIPAS with no evidence for any bias in most
cases and altitude regions. For balloon-borne measurements typical absolute
mean differences are below 0.05 ppbv over the whole altitude range from 10 to
39 km. In case of ACE-FTS observations mean differences are below 0.03 ppbv
for observations below 26 km. Above this altitude the comparison with ACE-FTS
is affected by the photochemically induced diurnal variation of ClONO&lt;sub&gt;2&lt;/sub&gt;.
Correction for this by use of a chemical transport model led to an
overcompensation of the photochemical effect by up to 0.1 ppbv at altitudes
of 30&amp;ndash;35 km in case of MIPAS-ACE-FTS comparisons while for the balloon-borne
observations no such inconsistency has been detected. The comparison of MIPAS
derived total column amounts with ground-based observations revealed no
significant bias in the MIPAS data. Mean differences between MIPAS and FTIR
column abundances are 0.11&amp;plusmn;0.12&amp;times;10&lt;sup&gt;14&lt;/sup&gt; cm&lt;sup&gt;&amp;minus;2&lt;/sup&gt; (1.0&amp;plusmn;1.1%)
and &amp;minus;0.09&amp;plusmn;0.19&amp;times;10&lt;sup&gt;14&lt;/sup&gt; cm&lt;sup&gt;&amp;minus;2&lt;/sup&gt; (&amp;minus;0.8&amp;plusmn;1.7%), depending on
the coincidence criterion applied. &amp;chi;&lt;sup&gt;2&lt;/sup&gt; tests have been performed to
assess the combined precision estimates of MIPAS and the related instruments.
When no exact coincidences were available as in case of MIPAS &amp;ndash; FTIR or MIPAS
&amp;ndash; ACE-FTS comparisons it has been necessary to take into consideration a
coincidence error term to account for &amp;chi;&lt;sup&gt;2&lt;/sup&gt; deviations. From the resulting
&amp;chi;&lt;sup&gt;2&lt;/sup&gt; profiles there is no evidence for a systematic over/underestimation
of the MIPAS random error analysis.</p>
</abstract>
<counts><page-count count="25"/></counts>
</article-meta>
</front>
<body/>
<back>
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