เปรียบเทียบวิธี

	Global Co-Kriging	Ordinary Kriging
สาขาวิชา	การวิเคราะห์เชิงพื้นที่	การวิเคราะห์เชิงพื้นที่
ตระกูล	Regression model	Regression model
ปีกำเนิด	1982	1963
ผู้ริเริ่ม	Matheron (geostatistics framework); formalized for multivariate case by Myers (1982)	Georges Matheron (formalising D.G. Krige's empirical work)
ประเภท	Multivariate geostatistical interpolation	Geostatistical interpolation
แหล่งต้นตำรับ	Myers, D. E. (1982). Matrix formulation of co-kriging. Journal of the International Association for Mathematical Geology, 14(3), 249–257.	Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246-1266.
ชื่อเรียกอื่น	global cokriging, co-kriging, cokriging, multivariate kriging	OK, kriging interpolation, geostatistical interpolation, BLUE spatial predictor
ที่เกี่ยวข้อง	4	4
สรุป	Global Co-Kriging is a multivariate geostatistical interpolation method that estimates an unsampled primary variable by exploiting its spatial cross-correlation with one or more secondary variables. Unlike local (moving-window) approaches, it fits a single set of variogram and cross-variogram models to the entire study domain and solves one global cokriging system for each prediction location.	Ordinary Kriging (OK) is the standard geostatistical method for interpolating a continuous spatial variable at unsampled locations. It derives optimal, unbiased weights from the spatial covariance structure of the data, making it the Best Linear Unbiased Predictor (BLUP) under stationarity assumptions. Unlike simpler distance-based methods, it also provides a prediction uncertainty (kriging variance) at every interpolated point.