Hi list,
I want to do ordinary kriging with an anisotropic variogram with GSLIB. My
variogram is an exponential model with a practical range of 1800 m in
direction 50 and 880 m in direction 320. I'm not sure whether I have to use
the practical range (which is 3a) or the value a, which is
Els,
Which GSLIB program are you using? When you refer to the practical range
a and 3a this is normally associated with the exponential model, the GSLIB
programs appear to be setup to use spherical model parameters, so you
should fit spherical models to your data, in the case of fitting a
Dear Els,
GSLIB uses the practical range for the exponential model.The best way to
check this is to calculate your experimental variograms with gamv, run
the model with vmodel and then plot them together using vargplt. If the
model fits correctly your data, then you can copy the parameters from
-geostats@unil.ch
Cc:
Subject: [ai-geostats] practical range vs range
Hi list,
I want to do ordinary kriging with an anisotropic variogram with GSLIB.
My
variogram is an exponential model with a practical range of 1800 m
