[GRASS-user] r.shade.relief: Results Not As Expected

[Rich Shepard]

On Tue, 5 Jan 2010, Glynn Clements wrote:

> Run r.slope.aspect on the interpolated map, and check for grid-like
> artifacts.

Glynn,

   Did this. Yes, there is a grid-like appearance to the resulting map.

> How good is the underlying data? If it's noisy, it may need to be
> filtered before interpolating.

   How do I check for noisy data? I have all the basic information about the
source data and derived maps.

> Also: which version of GRASS are you using?

   6.5svn.

Thanks,

Rich