<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xhtml="http://www.w3.org/1999/xhtml"
        xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
  <!-- Homepage -->
  <url>
    <loc>https://aquaterra.gr/</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/" />
    <image:image>
      <image:loc>https://aquaterra.gr/og-preview.png</image:loc>
      <image:title>AquaTerra — Coastal Erosion Protection, Coastal Vulnerability &amp; Earth Science Platform</image:title>
      <image:caption>Coastal erosion protection, coastal vulnerability assessment, erosion control, beach nourishment, soft shore protection, coastal management, coastal protection works — Mediterranean coastal engineering by AquaTerra</image:caption>
    </image:image>
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/" />
    <image:image>
      <image:loc>https://aquaterra.gr/og-preview.png</image:loc>
      <image:title>AquaTerra — Παράκτια Έργα Προστασίας &amp; Διαχείριση Παράκτιας Ζώνης | Παράκτια Τρωτότητα &amp; Διάβρωση</image:title>
      <image:caption>Παράκτια έργα προστασίας, παράκτια τρωτότητα, έλεγχος διάβρωσης, παράκτια διαχείριση, παράκτια έργα, τεχνητοί ύφαλοι, αναπλήρωση παραλίας, ήπια έργα προστασίας — προστασία ακτών από τη διάβρωση στη Μεσόγειο</image:caption>
    </image:image>
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>

  <!-- Earth Science Dashboard -->
  <url>
    <loc>https://aquaterra.gr/earth-science</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science" />
    <image:image>
      <image:loc>https://aquaterra.gr/og-preview.png</image:loc>
      <image:title>Πίνακας Γεωεπιστημών — Διάβρωση Ακτών &amp; Παράκτια Μηχανική</image:title>
    </image:image>
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- Phase 1 — Core Oceanographic Data -->
  <url>
    <loc>https://aquaterra.gr/earth-science/phase-1</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-1" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-1" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-1" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science/phase-1</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-1" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-1" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-1" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Phase 2 — Coastal Modeling -->
  <url>
    <loc>https://aquaterra.gr/earth-science/phase-2</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-2" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-2" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-2" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science/phase-2</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-2" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-2" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-2" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Phase 3 — Environmental Quality -->
  <url>
    <loc>https://aquaterra.gr/earth-science/phase-3</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-3" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-3" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-3" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science/phase-3</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-3" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-3" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-3" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Phase 4 — Climate Crisis -->
  <url>
    <loc>https://aquaterra.gr/earth-science/phase-4</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-4" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-4" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-4" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science/phase-4</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-4" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-4" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-4" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Phase 5 — Coastal Management -->
  <url>
    <loc>https://aquaterra.gr/earth-science/phase-5</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-5" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-5" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-5" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science/phase-5</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-5" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-5" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-5" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Phase 6 — Interactive Tools -->
  <url>
    <loc>https://aquaterra.gr/earth-science/phase-6</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-6" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-6" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-6" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/earth-science/phase-6</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/earth-science/phase-6" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/earth-science/phase-6" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/earth-science/phase-6" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Coastal Erosion — Dedicated landing page -->
  <url>
    <loc>https://aquaterra.gr/coastal-erosion</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/coastal-erosion" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/coastal-erosion" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/coastal-erosion" />
    <image:image>
      <image:loc>https://aquaterra.gr/og-preview.png</image:loc>
      <image:title>Coastal Erosion Protection — Beach Erosion, Coastal Vulnerability &amp; Soft Shore Solutions</image:title>
      <image:caption>Coastal erosion, coastal vulnerability, erosion control, coastal protection works, coastal management, beach nourishment, soft shore protection, beach restoration, coastal zone — AquaTerra patented artificial reefs</image:caption>
    </image:image>
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/coastal-erosion</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/coastal-erosion" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/coastal-erosion" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/coastal-erosion" />
    <image:image>
      <image:loc>https://aquaterra.gr/og-preview.png</image:loc>
      <image:title>Διάβρωση Ακτών &amp; Παράκτια Τρωτότητα — Παράκτια Έργα Προστασίας Παράκτιας Ζώνης</image:title>
      <image:caption>Παράκτια έργα, παράκτια τρωτότητα, έλεγχος διάβρωσης, παράκτια διαχείριση, παράκτια έργα προστασίας, παράκτια διάβρωση, ήπια έργα προστασίας, αναπλήρωση παραλίας, αποκατάσταση ακτογραμμής — AquaTerra τεχνητοί ύφαλοι</image:caption>
    </image:image>
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- Articles -->
  <url>
    <loc>https://aquaterra.gr/articles</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles" />
    <image:image>
      <image:loc>https://aquaterra.gr/og-preview.png</image:loc>
      <image:title>Άρθρα — Διάβρωση Ακτών, Παράκτια Μηχανική &amp; Κλιματική Έρευνα</image:title>
    </image:image>
    <lastmod>2026-04-01</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- Privacy Policy -->
  <url>
    <loc>https://aquaterra.gr/privacy-policy</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/privacy-policy" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/privacy-policy" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/privacy-policy" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/privacy-policy</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/privacy-policy" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/privacy-policy" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/privacy-policy" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>

  <!-- Articles — Individual pages (sample scientific articles) -->

  <!-- Articles — Case Study articles -->
  <url>
    <loc>https://aquaterra.gr/articles/cs-sand-motor</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-sand-motor" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-sand-motor" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-sand-motor" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-sand-motor</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-sand-motor" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-sand-motor" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-sand-motor" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-hondsbossche</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-hondsbossche" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-hondsbossche" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-hondsbossche" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-hondsbossche</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-hondsbossche" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-hondsbossche" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-hondsbossche" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-oitylo</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-oitylo" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-oitylo" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-oitylo" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-oitylo</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-oitylo" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-oitylo" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-oitylo" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-ebro-delta</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-ebro-delta" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-ebro-delta" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-ebro-delta" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-ebro-delta</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-ebro-delta" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-ebro-delta" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-ebro-delta" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-lido-di-dante</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-lido-di-dante" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-lido-di-dante" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-lido-di-dante" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-lido-di-dante</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-lido-di-dante" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-lido-di-dante" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-lido-di-dante" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-medmerry</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-medmerry" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-medmerry" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-medmerry" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-medmerry</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-medmerry" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-medmerry" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-medmerry" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-kalamaki-life-ip</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-kalamaki-life-ip" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-kalamaki-life-ip" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-kalamaki-life-ip" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-kalamaki-life-ip</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-kalamaki-life-ip" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-kalamaki-life-ip" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-kalamaki-life-ip" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-heraklion-crete</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-heraklion-crete" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-heraklion-crete" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-heraklion-crete" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-heraklion-crete</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-heraklion-crete" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-heraklion-crete" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-heraklion-crete" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-axios-delta</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-axios-delta" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-axios-delta" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-axios-delta" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-axios-delta</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-axios-delta" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-axios-delta" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-axios-delta" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-porto-katsiki-lefkada</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-porto-katsiki-lefkada" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-porto-katsiki-lefkada" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-porto-katsiki-lefkada" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-porto-katsiki-lefkada</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-porto-katsiki-lefkada" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-porto-katsiki-lefkada" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-porto-katsiki-lefkada" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/cs-faliraki-rhodes</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-faliraki-rhodes" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-faliraki-rhodes" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-faliraki-rhodes" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-faliraki-rhodes</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-faliraki-rhodes" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-faliraki-rhodes" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-faliraki-rhodes" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>

  <!-- Articles — Methodology articles -->
  <url>
    <loc>https://aquaterra.gr/articles/meth-storm-surge</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-storm-surge" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-storm-surge" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-storm-surge" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-storm-surge</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-storm-surge" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-storm-surge" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-storm-surge" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-wave-climate</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-wave-climate" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-wave-climate" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-wave-climate" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-wave-climate</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-wave-climate" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-wave-climate" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-wave-climate" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-sediment-transport</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-sediment-transport" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-sediment-transport" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-sediment-transport" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-sediment-transport</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-sediment-transport" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-sediment-transport" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-sediment-transport" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-coastal-defense</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-coastal-defense" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-coastal-defense" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-coastal-defense" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-coastal-defense</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-coastal-defense" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-coastal-defense" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-coastal-defense" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-nbs</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-nbs" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-nbs" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-nbs" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-nbs</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-nbs" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-nbs" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-nbs" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-seagrass</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-seagrass" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-seagrass" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-seagrass" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-seagrass</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-seagrass" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-seagrass" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-seagrass" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-sea-level</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-sea-level" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-sea-level" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-sea-level" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-sea-level</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-sea-level" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-sea-level" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-sea-level" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-protected-areas</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-protected-areas" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-protected-areas" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-protected-areas" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-protected-areas</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-protected-areas" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-protected-areas" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-protected-areas" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-scenario-modeling</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-scenario-modeling" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-scenario-modeling" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-scenario-modeling" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-scenario-modeling</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-scenario-modeling" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-scenario-modeling" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-scenario-modeling" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-bathymetry</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-bathymetry" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-bathymetry" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-bathymetry" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-bathymetry</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-bathymetry" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-bathymetry" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-bathymetry" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-slope-stability</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-slope-stability" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-slope-stability" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-slope-stability" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-slope-stability</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-slope-stability" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-slope-stability" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-slope-stability" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-water-quality</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-water-quality" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-water-quality" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-water-quality" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-water-quality</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-water-quality" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-water-quality" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-water-quality" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-current-fields</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-current-fields" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-current-fields" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-current-fields" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-current-fields</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-current-fields" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-current-fields" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-current-fields" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/meth-climate-hazards</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-climate-hazards" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-climate-hazards" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-climate-hazards" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-climate-hazards</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-climate-hazards" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-climate-hazards" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-climate-hazards" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>

  <!-- Articles — Enriched research articles -->
  <url>
    <loc>https://aquaterra.gr/articles/enr-why-not-hard-structures</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-why-not-hard-structures" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-why-not-hard-structures" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-why-not-hard-structures" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-why-not-hard-structures</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-why-not-hard-structures" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-why-not-hard-structures" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-why-not-hard-structures" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/enr-eu-coastal-policy</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-eu-coastal-policy" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-eu-coastal-policy" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-eu-coastal-policy" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-eu-coastal-policy</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-eu-coastal-policy" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-eu-coastal-policy" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-eu-coastal-policy" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/enr-international-coastal-texts</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-international-coastal-texts" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-international-coastal-texts" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-international-coastal-texts" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-international-coastal-texts</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-international-coastal-texts" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-international-coastal-texts" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-international-coastal-texts" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/enr-soft-protection-method</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-soft-protection-method" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-soft-protection-method" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-soft-protection-method" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-soft-protection-method</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-soft-protection-method" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-soft-protection-method" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-soft-protection-method" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/enr-climate-med-adaptation</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-climate-med-adaptation" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-climate-med-adaptation" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-climate-med-adaptation" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-climate-med-adaptation</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-climate-med-adaptation" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-climate-med-adaptation" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-climate-med-adaptation" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>

  <!-- Articles — Research papers -->
  <url>
    <loc>https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/paper-rhodes-gravel-trajectory-2026" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/paper-rhodes-gravel-trajectory-2026</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/paper-rhodes-gravel-trajectory-2026" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/paper-kalamaki-long-horizon-2026" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/paper-kalamaki-long-horizon-2026</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/paper-kalamaki-long-horizon-2026" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026" />
    <lastmod>2026-04-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/storm-surge-gev-mediterranean</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/storm-surge-gev-mediterranean" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/storm-surge-gev-mediterranean-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/storm-surge-gev-mediterranean" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/seagrass-coastal-erosion-breakwaters</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/seagrass-coastal-erosion-breakwaters" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/seagrass-coastal-erosion-breakwaters-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/seagrass-coastal-erosion-breakwaters" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/sea-level-rise-greek-coastlines-ipcc</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/sea-level-rise-greek-coastlines-ipcc" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/sea-level-rise-greek-coastlines-ipcc-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/sea-level-rise-greek-coastlines-ipcc" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/real-time-coastal-monitoring-era5</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/real-time-coastal-monitoring-era5" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/real-time-coastal-monitoring-era5-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/real-time-coastal-monitoring-era5" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/sediment-transport-cerc-kamphuis</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/sediment-transport-cerc-kamphuis" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/sediment-transport-cerc-kamphuis-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/sediment-transport-cerc-kamphuis" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/articles/climate-hazard-coastal-infrastructure</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/climate-hazard-coastal-infrastructure" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/climate-hazard-coastal-infrastructure-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/climate-hazard-coastal-infrastructure" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-sand-motor-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-sand-motor" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-sand-motor-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-sand-motor" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-hondsbossche-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-hondsbossche" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-hondsbossche-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-hondsbossche" />
    <lastmod>2025-04-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-oitylo-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-oitylo" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-oitylo-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-oitylo" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-ebro-delta-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-ebro-delta" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-ebro-delta-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-ebro-delta" />
    <lastmod>2025-01-28</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-lido-di-dante-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-lido-di-dante" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-lido-di-dante-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-lido-di-dante" />
    <lastmod>2024-11-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-medmerry-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-medmerry" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-medmerry-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-medmerry" />
    <lastmod>2025-02-28</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-kalamaki-life-ip-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-kalamaki-life-ip" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-kalamaki-life-ip-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-kalamaki-life-ip" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-heraklion-crete-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-heraklion-crete" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-heraklion-crete-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-heraklion-crete" />
    <lastmod>2025-06-08</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-axios-delta-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-axios-delta" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-axios-delta-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-axios-delta" />
    <lastmod>2025-06-10</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-porto-katsiki-lefkada-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-porto-katsiki-lefkada" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-porto-katsiki-lefkada-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-porto-katsiki-lefkada" />
    <lastmod>2025-06-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/cs-faliraki-rhodes-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/cs-faliraki-rhodes" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/cs-faliraki-rhodes-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/cs-faliraki-rhodes" />
    <lastmod>2025-06-14</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-storm-surge-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-storm-surge" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-storm-surge-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-storm-surge" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-wave-climate-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-wave-climate" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-wave-climate-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-wave-climate" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-sediment-transport-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-sediment-transport" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-sediment-transport-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-sediment-transport" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-coastal-defense-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-coastal-defense" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-coastal-defense-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-coastal-defense" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-nbs-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-nbs" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-nbs-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-nbs" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-seagrass-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-seagrass" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-seagrass-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-seagrass" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-sea-level-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-sea-level" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-sea-level-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-sea-level" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-protected-areas-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-protected-areas" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-protected-areas-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-protected-areas" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-scenario-modeling-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-scenario-modeling" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-scenario-modeling-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-scenario-modeling" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-bathymetry-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-bathymetry" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-bathymetry-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-bathymetry" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-slope-stability-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-slope-stability" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-slope-stability-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-slope-stability" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-water-quality-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-water-quality" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-water-quality-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-water-quality" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-current-fields-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-current-fields" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-current-fields-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-current-fields" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/meth-climate-hazards-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/meth-climate-hazards" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/meth-climate-hazards-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/meth-climate-hazards" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-why-not-hard-structures-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-why-not-hard-structures" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-why-not-hard-structures-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-why-not-hard-structures" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-eu-coastal-policy-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-eu-coastal-policy" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-eu-coastal-policy-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-eu-coastal-policy" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-international-coastal-texts-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-international-coastal-texts" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-international-coastal-texts-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-international-coastal-texts" />
    <lastmod>2025-07-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-soft-protection-method-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-soft-protection-method" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-soft-protection-method-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-soft-protection-method" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/enr-climate-med-adaptation-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/enr-climate-med-adaptation" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/enr-climate-med-adaptation-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/enr-climate-med-adaptation" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/paper-rhodes-gravel-trajectory-2026-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/paper-rhodes-gravel-trajectory-2026-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/paper-rhodes-gravel-trajectory-2026" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/paper-kalamaki-long-horizon-2026-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/paper-kalamaki-long-horizon-2026-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/paper-kalamaki-long-horizon-2026" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/storm-surge-gev-mediterranean-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/storm-surge-gev-mediterranean" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/storm-surge-gev-mediterranean-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/storm-surge-gev-mediterranean" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/seagrass-coastal-erosion-breakwaters-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/seagrass-coastal-erosion-breakwaters" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/seagrass-coastal-erosion-breakwaters-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/seagrass-coastal-erosion-breakwaters" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/sea-level-rise-greek-coastlines-ipcc-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/sea-level-rise-greek-coastlines-ipcc" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/sea-level-rise-greek-coastlines-ipcc-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/sea-level-rise-greek-coastlines-ipcc" />
    <lastmod>2025-07-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/real-time-coastal-monitoring-era5-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/real-time-coastal-monitoring-era5" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/real-time-coastal-monitoring-era5-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/real-time-coastal-monitoring-era5" />
    <lastmod>2025-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/sediment-transport-cerc-kamphuis-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/sediment-transport-cerc-kamphuis" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/sediment-transport-cerc-kamphuis-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/sediment-transport-cerc-kamphuis" />
    <lastmod>2025-09-18</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://aquaterra.gr/el/articles/climate-hazard-coastal-infrastructure-el</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://aquaterra.gr/articles/climate-hazard-coastal-infrastructure" />
    <xhtml:link rel="alternate" hreflang="el" href="https://aquaterra.gr/el/articles/climate-hazard-coastal-infrastructure-el" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://aquaterra.gr/articles/climate-hazard-coastal-infrastructure" />
    <lastmod>2025-08-30</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
</urlset>

