Re: universal kriging

[Konstantin Malakhanov <kosta@iwwnt.iwwl.rwth-aachen.de>]

Well, maybe there are some other reasons for your problem as well, but 
some things I'd mention is:

you have min=1 in your data file. That means in the worst case gstat
will try to fit a trend having just one value to do it -> this is a
singular problem.

You should check your search radius (is 125m enough to get reasonable
number of samples?).

Zero=0.001 means "average values that are closer then 0.001m" , this
could be also not enough, if you have some profile points falling
apart at 1-2m (for instance).

Hope it helps.


Konstantin Malakhanov
---
Institut for Hydraulic Engineering & Groundwater Mgmt., 
RWTH Aachen, Germany
E-Mail: malakhanov@iww.rwth-aachen.de          Tel. +49/(0)241/807343