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{{#category_index:C|cokriging}} A geostatistical method of interpolating spatially organized data based on a sparse set of data that is considered as exact and other sets that are dense but inexact. Often involves interpolating between well data locations using seismic data as the dense but inexact data. It is a method of bivariate least-squares prediction filtering that is essentially a bivariate version of Wiener filtering. See also kriging and Journel and Huijbregts (1978).