[R-sig-Geo] temperature interpolation -- was: 3D kriging with gstat
edzer.pebesma at uni-muenster.de
Wed Jan 26 15:11:45 CET 2011
On 01/26/2011 02:45 PM, piero campa wrote:
> This is more about kriging theory actually,
> but I can't understand in which different ways the elevation information is
> taken into account in the prediction process when e.g.:
> - I apply ordinary cokriging on input data which include 3D (x,y,h) spatial
If your temperature is (near) surface temperature, then no, because you
want to predict surface temperature, not temperature for arbitrary h values.
> - I apply universal cokriging on input data with 2D (x,y) spatial
> coordinates and using the elevation h as external drift on the output grid.
This sounds more reasonable, yes.
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