Vertical Merging for DEMs

Question

Hi,

I have a set of two DEMs which were created separately. In 3D they appear offset to each other. The spatial data seems fine and mosaic merging does nothing to change the offset. How can I remove this 'cliff'' and merge the DEMs smoothly together?

danretired · Answer

The difference lies in how they were created, perhaps a projection or coordinate definition issue.

There is no way to resolve it  without going back to the original sources.

A FocalMean run a couple of times would smooth things out but not make it very useful for analysis.

GrahamDriver · Answer

Hi, The datasets are not uniform across their joining axis 😞 Shifting the raster down at a central point creates a elevation difference as you progress towards the edges

GrahamDriver · Answer

Moasic to New Raster does not work. I don't see a blend in values and when placed in elevation surfaces/ground, the raster has the same 'cliff' discontinuity.