A variance-ratio test for supporting a variable mean in kriging |
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Authors: | Peter K Kitanidis |
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Institution: | (1) Department of Civil Engineering, Stanford University, 94305-4020 Stanford, California |
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Abstract: | This article discusses the issue of whether to use a variable mean and describes a test that can be used to evaluate whether
it is justified to add terms to the drift (deterministic part) of a geostatistical model. The basic model could be the intrinsic
one, where the deterministic part is a constant, and the alternate model could be any model that includes a constant term
in the expression for the drift. Also, differences between constant- and variable-mean models are discussed. |
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Keywords: | geostatistics linear model best linear unbiased estimation experimental variogram restricted maximum likelihood model testing |
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