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| グローバル共同クリギング× | 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≠ | 1982 | 1965-1978 |
| 提唱者≠ | Matheron (geostatistics framework); formalized for multivariate case by Myers (1982) | Matheron, G.; extended by Journel & Huijbregts |
| 種類≠ | Multivariate geostatistical interpolation | Geostatistical interpolation |
| 原典≠ | Myers, D. E. (1982). Matrix formulation of co-kriging. Journal of the International Association for Mathematical Geology, 14(3), 249–257. DOI ↗ | Journel, A. G., & Huijbregts, C. J. (1978). Mining Geostatistics. Academic Press, London. ISBN: 978-0123910561 |
| 別名 | global cokriging, co-kriging, cokriging, multivariate kriging | cokriging, co-regionalization kriging, multivariate kriging, CK |
| 関連≠ | 4 | 5 |
| 概要≠ | 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. | 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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