Dear r-sig-geo,

I have gridded surface data for precipitation, temperature in the format of
netcdf for different sources(different downscaling methods), and I want to
know which one preserve the spatial variability of original data(at a
coarser resolution) best.

Is there a function or method can be used for this kind of geostatistic
analysesin R? Shoud I do a spatial co-relation for this and how to do it?

I will be appreciated if someone here could give me some
suggestions/advices on doing this?

Thanks and Regards,

Ping

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