I have a question I appreciate that if someone can help meI have a DEM in arcmap and cross section of a river which flows on the Dem in Hecras.I now the cross sections are more accurate. I want to make a DEM from some of my cross sections and stitch it on my original Dem to analyze 2d flow in the other hydraulic soft ware. my question is that How can I make Dem from cross sections and How can I stitch it?Thanks
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