Comparer des méthodes

	Krigage universel global	Krigage Universel Local
Domaine	Analyse spatiale	Analyse spatiale
Famille	Regression model	Regression model
Année d'origine	1969	1969/1997
Auteur d'origine	Georges Matheron	Matheron, G. (trend/drift kriging); local neighborhood approach standard in geostatistical practice
Type	Geostatistical interpolation	Spatial interpolation model
Source fondatrice	Journel, A. G., & Huijbregts, C. J. (1978). Mining Geostatistics. Academic Press, London. ISBN: 978-0123910608	Goovaerts, P. (1997). Geostatistics for Natural Resources Evaluation. Oxford University Press. ISBN: 9780195115383
Alias	universal kriging (global), global UK, kriging with external drift (global), global trend kriging	local UK, local kriging with trend, local KED, local kriging with external drift
Apparentées	4	5
Résumé	Global Universal Kriging is a geostatistical interpolation method that models a spatially varying trend (drift) as a deterministic function of coordinates and uses the entire dataset to fit both the trend coefficients and the residual variogram simultaneously. It produces optimal linear unbiased predictions together with pointwise estimation uncertainty, accounting for a large-scale spatial gradient across the full study region.	Local Universal Kriging is a geostatistical interpolation method that combines a spatially varying deterministic trend with a stochastic residual, estimated using only nearby observations within a defined search neighborhood. It generalizes local ordinary kriging by explicitly modeling and removing a polynomial or covariate-driven drift before interpolating the residual surface.