手法を比較

	空間時間クリギング	Ordinary Kriging
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1999	1963
提唱者	Cressie & Huang; Kyriakidis & Journel	Georges Matheron (formalising D.G. Krige's empirical work)
種類	Geostatistical interpolation	Geostatistical interpolation
原典	Cressie, N., & Huang, H.-C. (1999). Classes of nonseparable, spatio-temporal stationary covariance functions. Journal of the American Statistical Association, 94(448), 1330-1340.	Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246-1266.
別名	spatiotemporal kriging, ST-kriging, space-time geostatistical interpolation, kriging in space-time	OK, kriging interpolation, geostatistical interpolation, BLUE spatial predictor
関連	4	4
概要	Space-Time Kriging is a geostatistical interpolation method that predicts an unknown variable at any location and time by borrowing strength from nearby observations in both space and time simultaneously. It models the joint spatial-temporal covariance structure through a space-time variogram, then uses optimal linear weights to produce predictions with quantified uncertainty.	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.