DEM Review, request for contribution

[Markus Neteler]

> I'm currently in the process of reviewing the quality of 
> DEMs created by most major GIS packages. I had been hoping
[...]
> Is there someone here who is knowledgeable about creating
> GRASS dems who is willing to generate a dem or 3 from our
> test dataset for this experiment?
If you want to generate a synthetical DEM, you
can use 

r.surf.fractal

http://www.geog.uni-hannover.de/grass/grass5/html_grass5/html/r.surf.fractal.html

It generates DEMs from given fractal dimension.
Yesterday I updated the module to GRASS 5 with FP support,
I put it on the hannover server into
 GRASS 5 -> source -> experimental (GRASS 5 beta5i).

Best regards

 Markus Neteler