Comparar métodos

	Krigagem Universal Global	Krigagem Universal (Krigagem com Tendência)
Área	Análise espacial	Análise espacial
Família	Regression model	Regression model
Ano de origem	1969	1969
Autor original	Georges Matheron	Georges Matheron
Tipo	Geostatistical interpolation	Geostatistical interpolation with spatial trend
Fonte seminal	Journel, A. G., & Huijbregts, C. J. (1978). Mining Geostatistics. Academic Press, London. ISBN: 978-0123910608	Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246–1266.
Outros nomes	universal kriging (global), global UK, kriging with external drift (global), global trend kriging	kriging with a trend, kriging with drift, trend kriging, evrensel kriging
Relacionados	4	3
Resumo	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.	Universal kriging generalizes ordinary kriging to data whose mean varies systematically across space — a spatial trend or 'drift'. It models the mean as a function of the coordinates (or covariates) and krigs the residuals, so it can interpolate variables that drift in a preferred direction, such as temperature falling with latitude or a pollutant gradient, while still returning prediction variances.