Mathematical Geology

, Volume 29, Issue 3, pp 335–348

A variance-ratio test for supporting a variable mean in kriging



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.

Key words

geostatistics linear model best linear unbiased estimation experimental variogram restricted maximum likelihood model testing 


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Copyright information

© International Association for Mathematical Geology 1997

Authors and Affiliations

  1. 1.Department of Civil EngineeringStanford UniversityStanford

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