GEOSTATS: Beginners question: deal with trend and zonal anisotropy
- Hello !
I am a beginner in geostatistics and have some questions concerning trend
and zonal anisotropy.
In my data of cloud cover in germany I have an obvious trend of decreasing
cloud amount from north to the south. I have a zonal anisotropy too, with
the following variogramms:
linear with sill, Nugget 0.005 Sill 0.06 Range 400
linear with sill, Nugget 0.0 Sill 0.210 range 540
How to deal with something like this. I have read in the
gstat-users-manual, that the type linear with sill is only for one-dimensional-modelling. But
which type to use then ?
How to deal with the trend. Shall I have to use universal kriging because
of the trend ? But with which model concerning the zonal anisotropy should I
Thanks for your help !
Department of Geography
University of Wuerzburg
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