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<front>
<journal-meta>
<journal-id journal-id-type="publisher">EGUsphere</journal-id>
<journal-title-group>
<journal-title>EGUsphere</journal-title>
<abbrev-journal-title abbrev-type="publisher">EGUsphere</abbrev-journal-title>
<abbrev-journal-title abbrev-type="nlm-ta">EGUsphere</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub"></issn>
<publisher><publisher-name>Copernicus Publications</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/egusphere-2026-1775</article-id>
<title-group>
<article-title>Characterization of Dust Aerosol Source Types and Associated Shortwave Direct Radiative Effects Over Cyprus: A Seven-Year Study</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Charalampous</surname>
<given-names>Georgia</given-names>
<ext-link>https://orcid.org/0009-0004-2161-7197</ext-link>
</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>Fragkos</surname>
<given-names>Konstantinos</given-names>
<ext-link>https://orcid.org/0000-0002-3009-2407</ext-link>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Fountoulakis</surname>
<given-names>Ilias</given-names>
<ext-link>https://orcid.org/0000-0002-1511-0603</ext-link>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Papachristopoulou</surname>
<given-names>Kyriakoula</given-names>
<ext-link>https://orcid.org/0000-0001-8000-5714</ext-link>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Moustaka</surname>
<given-names>Anna</given-names>
<ext-link>https://orcid.org/0009-0007-0492-2247</ext-link>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Marenco</surname>
<given-names>Franco</given-names>
<ext-link>https://orcid.org/0000-0002-1833-1102</ext-link>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Derimian</surname>
<given-names>Yevgeny</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>Nisantzi</surname>
<given-names>Argyro</given-names>
<ext-link>https://orcid.org/0000-0001-8159-248X</ext-link>
</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>Mamouri</surname>
<given-names>Rodanthi-Elisavet</given-names>
<ext-link>https://orcid.org/0000-0003-4836-8560</ext-link>
</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>Hadjimitsis</surname>
<given-names>Diofantos</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Kazadzis</surname>
<given-names>Stelios</given-names>
<ext-link>https://orcid.org/0000-0003-1031-0216</ext-link>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Department of Resilient Society /Department of Environment and Climate Eratosthenes Centre of Excellence, Fragklinou Rousvelt 82, 3012 Limassol, Cyprus</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Department of Civil Engineering &amp; Geomatics, Cyprus University of Technology, 3036 Limassol, Cyprus</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Climate and Atmosphere Research Centre (CARE-C), The Cyprus Institute, Nicosia, 2121, Cyprus</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Research Centre for Atmospheric Physics and Climatology, Academy of Athens, 106 79 Athens, Greece</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>Physikalisch-Meteorologisches Observatorium Davos, World Radiation Center (PMOD/WRC), Davos 7260, Switzerland</addr-line>
</aff>
<aff id="aff6">
<label>6</label>
<addr-line>Univ. Lille, CNRS, UMR 8518 - LOA - Laboratoire d’Optique Atmosphérique, 59000 Lille, France</addr-line>
</aff>
<pub-date pub-type="epub">
<day>02</day>
<month>04</month>
<year>2026</year>
</pub-date>
<volume>2026</volume>
<fpage>1</fpage>
<lpage>46</lpage>
<permissions>
<copyright-statement>Copyright: &#x000a9; 2026 Georgia Charalampous et al.</copyright-statement>
<copyright-year>2026</copyright-year>
<license license-type="open-access">
<license-p>This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit <ext-link ext-link-type="uri"  xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link></license-p>
</license>
</permissions>
<self-uri xlink:href="https://egusphere.copernicus.org/preprints/2026/egusphere-2026-1775/">This article is available from https://egusphere.copernicus.org/preprints/2026/egusphere-2026-1775/</self-uri>
<self-uri xlink:href="https://egusphere.copernicus.org/preprints/2026/egusphere-2026-1775/egusphere-2026-1775.pdf">The full text article is available as a PDF file from https://egusphere.copernicus.org/preprints/2026/egusphere-2026-1775/egusphere-2026-1775.pdf</self-uri>
<abstract>
<p>&lt;span&gt;Atmospheric mineral dust modulates surface solar radiation, with important implications for regional climate and solar energy production. In this study, we investigate dust aerosol typing and associated shortwave (SW) direct radiative effects (DREs) using radiative transfer simulations over Cyprus using a seven-year dataset (2015&amp;ndash;2022) from the Agia Marina Xyliatou station. Dust events were identified using AERONET optical properties, lidar observations, MODIS imagery, and classified by origin (Sahara or Middle East) based on HYSPLIT back-trajectories analysis. Dust accounts for ~28.3 % of aerosol cases during spring (MAM) and ~12.7 % during autumn (SON), with 86 % of events originating from the Sahara and 14% from the Middle East. The mean AOD at 440 nm for the period studied here is 0.33 &amp;plusmn; 0.08 for Saharan events and 0.38 &amp;plusmn; 0.09 for Middle Eastern events, while the SSA at 440 nm remains high for both sources (0.93 &amp;plusmn; 0.04 and 0.94 &amp;plusmn; 0.03, respectively), indicating predominantly scattering aerosols. Radiative transfer estimates of global horizontal irradiance (GHI) agree well with ground-based irradiance measurements, with ~87 % of modelled GHI values within &amp;plusmn;5 % and ~96 % within &amp;plusmn;10 % of observations. The mean surface SW DREs are &amp;minus;84 &amp;plusmn; 49 W m&lt;sup&gt;&amp;minus;2&lt;/sup&gt;&amp;nbsp;for Saharan dust in March and &amp;minus;79 &amp;plusmn; 33 W m&lt;sup&gt;&amp;minus;2&lt;/sup&gt; for Middle Eastern dust in October. At the top of the atmosphere (TOA), the estimated cooling reaches &amp;minus;27 W m&lt;sup&gt;&amp;minus;2&lt;/sup&gt;, while atmospheric heating peaks at +72 &amp;plusmn; 45 W m&lt;sup&gt;&amp;minus;2&lt;/sup&gt;. Although the &amp;Aring;ngstr&amp;ouml;m exponent is slightly higher for Middle Eastern dust (0.36 vs. 0.28), suggesting enhanced fine-mode contribution due to aerosol mixing, radiative forcing efficiencies are comparable, indicating that aerosol loading primarily controls the magnitude of radiative perturbations.&lt;/span&gt;</p>
</abstract>
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