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| Ordinary Kriging× | 共同クルギング：多変量地球統計学的手法による補間× | |
|---|---|---|
| 分野 | 空間分析 | 空間分析 |
| 系統 | Regression model | Regression model |
| 提唱年≠ | 1963 | 1965-1978 |
| 提唱者≠ | Georges Matheron (formalising D.G. Krige's empirical work) | Matheron, G.; extended by Journel & Huijbregts |
| 種類 | Geostatistical interpolation | Geostatistical interpolation |
| 原典≠ | Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246-1266. DOI ↗ | Journel, A. G., & Huijbregts, C. J. (1978). Mining Geostatistics. Academic Press, London. ISBN: 978-0123910561 |
| 別名 | OK, kriging interpolation, geostatistical interpolation, BLUE spatial predictor | cokriging, co-regionalization kriging, multivariate kriging, CK |
| 関連≠ | 4 | 5 |
| 概要≠ | 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. | Co-kriging is a geostatistical interpolation technique that predicts the spatial distribution of a primary variable by leveraging its spatial cross-correlation with one or more secondary (co-) variables. It extends ordinary kriging to multivariate settings, yielding more accurate predictions when the secondary variable is more densely sampled or spatially correlated with the primary variable of interest. |
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