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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi Walter,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">As an alternative to Wouter’s suggestion, I would recommend VRT’s (<b>Raster</b>
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D;mso-fareast-language:EN-US">è</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">
<b>Miscellaneous</b> </span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D;mso-fareast-language:EN-US">è</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">
<b>Build Virtual Raster</b>) Not alone does it merge/mosaic but it also results in a small file size. It is also very easy to generate convert that VRT to any other format output, using gdal_translate (<b>Raster</b>
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D;mso-fareast-language:EN-US">è</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">
<b>Conversion</b> </span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D;mso-fareast-language:EN-US">è</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">
<b>Translate</b>)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I hope this helps,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Kind Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Richard<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Qgis-user <qgis-user-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Wouter Impens via Qgis-user<br>
<b>Sent:</b> 20 May 2022 11:04<br>
<b>To:</b> qgis-user <qgis-user@lists.osgeo.org><br>
<b>Subject:</b> Re: [Qgis-user] Problem merging 30-m SRTM tiles in QGIS 3.24.3 for MacOS 10.14.6<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Walter, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm having good results using the 'r.patch' tool from GRASS for merging rasters. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hope this helps<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Greetings<o:p></o:p></p>
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<p class="MsoNormal">Wouter<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Op do 19 mei 2022 om 23:31 schreef Walter Alvarez via Qgis-user <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>>:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I’m trying to merge either two or twelve 30-m SRTM tiles using QGIS 3.14.3. In either case (2 or 12) I am stopped by the following problem:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Using Raster > Miscellaneous > Merge…<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I get the “Merge" window. I try to use Input layers > Elements selected > “…"<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That takes me to the "Multiple Selection" window, showing the 2 or 12 files I want to merge (filenames: nXXeXXX_1arc_v3 [EPSG:4326]).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">After selecting all the files, when I click “OK” the "Multiple Selection Window” and the “Merge” window both disappear, and I cannot figure out what to do next, or do differently.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I can’t figure out how to get past this problem and merge my tiles.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks for any help you can offer!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Walter<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:black"><br>
__________<br>
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<br>
Walter Alvarez<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:black">Professor of the Graduate School<br>
Department of Earth and Planetary Science<br>
University of California Berkeley<br>
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<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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