I have 2 separate DEMs which i wish to combine. One is the current DEM and the others are satellite pit designs. I am trying to add the pit designs into the current DEM so that it will represent the future DEM. Both are currently in dxf format. I have tried creating surfaces for both then using the Mosaic to new raster to join the two (selecting the pit surfaces to define the overlapping areas). The problem with this method is that it tends to lose the detail of the pit slopes.
is there any other method that can be used to combine the two?
Is there a workflow using TINs that will work?