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{{#category_index:K|kriging}} A geostatistical method of interpolating spatial data between locations at which values are known, using a linear combination of weights to the known data based on a model of spatial correlation. Usually involves estimating values based on measurements in boreholes. Kriging tends to produce average values. In simple kriging, the global mean is constant over the entire area; it is generally based on all the control points. In ordinary kriging, the local mean varies and is re-estimated based on the points in the moving neighborhood. See also cokriging. Named for Daniel. G. Krige, South African mining engineer. See David (1987).