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

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DOI: 10.1007/BF02769639

- Cite this article as:
- Kitanidis, P.K. Math Geol (1997) 29: 335. doi:10.1007/BF02769639

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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.