Here is the webpage for the data set I was working on.
I downloaded and imported the DEM geotiff. I did not modify the imported projection information.
Using Manifold System 126.96.36.199 (16-Mar-2023)
I performed a variety of tile transforms on the data set, including slope (grade), slope (aspect), and filter, (variance pop).
I used the same shape (circle), and radius (31) for each of the transforms. For the results I selected output to a new table for each transform.
I chose 31 for the radius, as this distance is half of the elevation variance across the data set.
For all of the transforms, I found that the (approximately) 62 pixels along the right and lower edges of the output images were unusually interpolated.
Any thoughts would be appreciated.