A comparison of kriging, co-kriging and kriging combined with regression for spatial interpolation of horizon depth with censored observations

M. Knotters, D.J. Brus, J.H. Oude Voshaar

    Research output: Contribution to journalArticleAcademicpeer-review

    207 Citations (Scopus)

    Abstract

    The performances of kriging, co-kriging, and kriging combined with regression were compared. These last two methods were applied to improve the interpolation of the soft-layer depth (Dsl), using the bulk soil electrical conductivity as an auxiliary variable. Soft layers were not detected within the boring depth of 1.20 m at 10% of the locations. Special attention was paid to these so-called censored observations on Dsl in the regression analysis and in the interpolations. Kriging combined with regression gave better results than co-kriging. Moreover, in kriging combined with regression fewer model parameters needed to be estimated.
    Original languageEnglish
    Pages (from-to)227-246
    JournalGeoderma
    Volume67
    DOIs
    Publication statusPublished - 1995

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