Proposal of an Indicator as Auxiliary Variable in the
Cokriging Analysis
Ramón Giraldo
Abstract
It is proposed an indicator that facilitates the estimation of
the linear model of coregionalization necessary for the
application of the cokriging method. Through a case study,
the prediction variances, obtained by kriging and cokriging methods with
the proposed indicator as auxiliary variable, are compared.
It is shown, with the considered information, that the cokriging method is preferable in terms of costs and precision of the predictions.
Key words: IGCi(P) Indicator, kriging, cokriging,
prediction variance.
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