So sánh phương pháp

	Local Universal Kriging	Universal Kriging (Kriging with a Trend)
Lĩnh vực	Phân tích không gian	Phân tích không gian
Họ	Regression model	Regression model
Năm ra đời	1969/1997	1969
Người khởi xướng	Matheron, G. (trend/drift kriging); local neighborhood approach standard in geostatistical practice	Georges Matheron
Loại	Spatial interpolation model	Geostatistical interpolation with spatial trend
Công trình gốc	Goovaerts, P. (1997). Geostatistics for Natural Resources Evaluation. Oxford University Press. ISBN: 9780195115383	Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246–1266.
Tên gọi khác	local UK, local kriging with trend, local KED, local kriging with external drift	kriging with a trend, kriging with drift, trend kriging, evrensel kriging
Liên quan	5	3
Tóm tắt	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.	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.