topic Re: Kriging tool odd output in ArcGIS Spatial Analyst Questions

Kriging tool odd output

Anonymous User — Fri, 14 Oct 2011 01:02:07 GMT

Original User: BAK55

I am having issues when using the kriging tool multiple times on the same dataset.
I have a point feature class of soil contamination levels for 4 metals and I am trying to run the kriging tool to create 4 interpolated surfaces based on the different field values. The problem is I do one and the results are what I expected, but I try to run the tool subsequent times using the same data and tool parameters, but am getting very strange results. See the attached jpeg.

Thanks for the help!

http://img827.imageshack.us/img827/9485/kriging.jpg

Re: Kriging tool odd output

SteveLynch — Fri, 14 Oct 2011 14:19:04 GMT

What version of ArcGIS are you using?
Are you running it via a script?
Can you send me the data and the input parameters (slynch@esri.com)

Thanks
Steve

Re: Kriging tool odd output

Anonymous User — Fri, 14 Oct 2011 21:02:21 GMT

Original User: stevelynch

The dataset only has 9 values which are not spatially correlated and are not normally distributed.
Which means that kriging is not the right interpolator.

A more conservative interpolator, for example, Natural Neighbor might be better.

Steve