So sánh phương pháp

	Kriging phổ quát toàn cục	Universal Kriging (Kriging with a Trend)
Lĩnh vực	Phân tích không gian	Phân tích không gian
Họ	Regression model	Regression model
Năm ra đời	1969	1969
Người khởi xướng	Georges Matheron	Georges Matheron
Loại	Geostatistical interpolation	Geostatistical interpolation with spatial trend
Công trình gốc	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.
Tên gọi khác	universal kriging (global), global UK, kriging with external drift (global), global trend kriging	kriging with a trend, kriging with drift, trend kriging, evrensel kriging
Liên quan	4	3
Tóm tắt	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.