Abstract
This paper provides a comparison between linear (universal) and nonlinear (disjunctive) kriging estimators when they are computed from small samples chosen randomly on simulated stationary and nonstationary fields. Point estimation results are reported. In all cases considered, kriging estimators were found better than a local mean estimator, with universal kriging either better than or as good as disjunctive kriging. The latter, which is suited to handle stationary fields, did not provide more accurate estimates because the use of small samples led to inconsistencies in the assumed bivariate model. Universal kriging was particularly better with nonstationary fields.
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Puente, C.E., Bras, R.L. Disjunctive kriging, universal kriging, or no kriging: Small sample results with simulated fields. Math Geol 18, 287–305 (1986). https://doi.org/10.1007/BF00898033
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DOI: https://doi.org/10.1007/BF00898033