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<idPurp>This product is a 15 m resolution median coherence mosaic generated from Sentinel-1 SLC scenes (June–August 2021). It highlights dune activity, vegetation, and other surface changes, and is used to support the dune distribution map.</idPurp>
<idAbs>&lt;DIV STYLE="text-align:Left;"&gt;&lt;DIV&gt;&lt;DIV&gt;&lt;P&gt;&lt;SPAN&gt;This product is a 15 m resolution median coherence mosaic generated from Sentinel-1 SLC scenes (June–August 2021). It highlights dune activity, vegetation, and other surface changes, and is used to support the dune distribution map. &amp;amp;&amp;amp; &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;To improve the resolution of the previous Sentinel-1 coherence mosaic product, we have generated our own a 15 m resolution mosaic of Sentinel-1 12-daily median coherence mosaic from original the Sentinel-1 SLC scenes collected in the summer of 2021. The product was generated by calculating per pixel median of all 12-daily Sentinel-1 coherence image pairs acquired over the study area in the summer (June-August) of 2021. Radar coherence is a measure that is sensitive to surface changes (dunes activity, vegetation, construction). The dunes have low coherence values and appear in dark shades in the provided coherence image mosaic. This product is used to drive the dune distribution map.&lt;/SPAN&gt;&lt;/P&gt;&lt;/DIV&gt;&lt;/DIV&gt;&lt;/DIV&gt;</idAbs>
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