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<front>
<journal-meta>
<journal-id journal-id-type="publisher">AMTD</journal-id>
<journal-title-group>
<journal-title>Atmospheric Measurement Techniques Discussions</journal-title>
<abbrev-journal-title abbrev-type="publisher">AMTD</abbrev-journal-title>
<abbrev-journal-title abbrev-type="nlm-ta">Atmos. Meas. Tech. Discuss.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1867-8610</issn>
<publisher><publisher-name></publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/amtd-7-5829-2014</article-id>
<title-group>
<article-title>Relationships between columnar aerosol optical properties and surface particulate matter observations in north-central Spain from long-term records (2003–2011)</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Bennouna</surname>
<given-names>Y. 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>Cachorro</surname>
<given-names>V.</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>Burgos</surname>
<given-names>M. 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>Toledano</surname>
<given-names>C.</given-names>
<ext-link>https://orcid.org/0000-0002-6890-6648</ext-link>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Torres</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>de Frutos</surname>
<given-names>A.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Atmospheric Optics Group (GOA), University of Valladolid (UVA), Valladolid, Spain</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Laboratoire d&apos;Optique Amosphérique (LOA) – UMR8518, Université des Sciences et Technologies de Lille, Villeneuve d&apos;Ascq, France</addr-line>
</aff>
<pub-date pub-type="epub">
<day>11</day>
<month>06</month>
<year>2014</year>
</pub-date>
<volume>7</volume>
<issue>6</issue>
<fpage>5829</fpage>
<lpage>5882</lpage>
<permissions>
<copyright-statement>Copyright: &#x000a9; 2014 Y. S. Bennouna et al.</copyright-statement>
<copyright-year>2014</copyright-year>
<license license-type="open-access">
<license-p>This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit <ext-link ext-link-type="uri"  xlink:href="https://creativecommons.org/licenses/by/3.0/">https://creativecommons.org/licenses/by/3.0/</ext-link></license-p>
</license>
</permissions>
<self-uri xlink:href="https://amt.copernicus.org/preprints/7/5829/2014/amtd-7-5829-2014.html">This article is available from https://amt.copernicus.org/preprints/7/5829/2014/amtd-7-5829-2014.html</self-uri>
<self-uri xlink:href="https://amt.copernicus.org/preprints/7/5829/2014/amtd-7-5829-2014.pdf">The full text article is available as a PDF file from https://amt.copernicus.org/preprints/7/5829/2014/amtd-7-5829-2014.pdf</self-uri>
<abstract>
<p>This work examines the relationships between Aerosol Optical Depth
  (AOD) and Particulate Matter (PM&lt;sub&gt;X&lt;/sub&gt;) parameters, based on
  long records (2003–2011) of two nearby sites from the AERONET and
  EMEP networks in the north-central area of Spain. The climatological
  annual cycle of  PM&lt;sub&gt;10&lt;/sub&gt;  and  PM&lt;sub&gt;2.5&lt;/sub&gt; present
  a bimodality which might be partly due to desert dust intrusions,
  a pattern which does not appear in the annual cycle of the AOD. In
  the case of the AOD, this bimodality is likely to be masked because
  of the poor sampling of sunphotometer data as compared to
  PM&lt;sub&gt;X&lt;/sub&gt; (67% of days against 90%), and this fact
  stresses the necessity of long-term observations. In monthly series,
  significant interannual variations are observed and most extrema
  coincide, however the bimodal shape remains relatively stable for
  PM&lt;sub&gt;X&lt;/sub&gt;. Significant and consistent trends were found for both
  datasets likely associated to a decrease of desert dust
  apportionment until 2009. PM&lt;sub&gt;10&lt;/sub&gt; and AOD daily data are
  moderately correlated (0.56), a correlation improving for monthly
  means (0.70). In the case of strong desert dust events day-to-day
  correlation is not systematic, therefore an extensive analysis on
  PM&lt;sub&gt;X&lt;/sub&gt;, fine-PM ratio, AOD and associated Ångström
  exponent (α) is carried out.</p>
</abstract>
<counts><page-count count="54"/></counts>
</article-meta>
</front>
<body/>
<back>
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