Robust estimation of the variogram: I

Noel Cressie; Douglas M Hawkins

doi:10.1007/BF01035243

Robust estimation of the variogram: I

Noel Cressie, Douglas M Hawkins

Statistics (Twin Cities)

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633 Scopus citations

Abstract

It is a matter of common experience that ore values often do not follow the normal (or lognormal) distributions assumed for them, but, instead, follow some other heavier-tailed distribution. In this paper we discuss the robust estimation of the variogram when the distribution is normal-like in the central region but heavier than normal in the tails. It is shown that the use of a fourth-root transformation with or without the use of M-estimation yields stable robust estimates of the variogram.

Original language	English (US)
Pages (from-to)	115-125
Number of pages	11
Journal	Journal of the International Association for Mathematical Geology
Volume	12
Issue number	2
DOIs	https://doi.org/10.1007/BF01035243
State	Published - Apr 1 1980

Keywords

Geostatistics
kriging
robust estimation
variogram

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10.1007/BF01035243

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abstract = "It is a matter of common experience that ore values often do not follow the normal (or lognormal) distributions assumed for them, but, instead, follow some other heavier-tailed distribution. In this paper we discuss the robust estimation of the variogram when the distribution is normal-like in the central region but heavier than normal in the tails. It is shown that the use of a fourth-root transformation with or without the use of M-estimation yields stable robust estimates of the variogram.",

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KW - variogram

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Robust estimation of the variogram: I

Abstract

Keywords

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