i downloaded Copernicus 30m DEM data from AWS and compared it to SRTM, Lidar and Tandem-x products, all resampled to 10m resolution. It seems as if the height information is shifted compared to these other datasets.
For better visibility, i’ve taken the difference of the DEMs in the following:
The difference for example between TDM and SRTM (right image) in most lightly vegetated areas is very small, and does not show much of a regular pattern.
Both have the same colorscale, the left shows a clear wavepattern, suggesting positional shift of the Copernicus DEM against the other three DEMs.
Is this an error on my side? Thanks for reading!