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Kriging (Using Variograms) Explained 

Kriging (Using Variograms) Explained
Description: Kriging algorithm explained: To estimate the value of Cell 1 (C1) no data points are found within the range (note, the value of C2 has not been estimated yet). The range is governed by the variogram and indicates the point at which data shows no correlation (or where the semi-variance vs distance plot starts to flatten). Because no data exists whithin the range the average of all data points is used for the C1 cell. When the C2 cell is now visited the C1 cell and the other datapoints (two green and one yellow) are also used. Their relative weight is based on the variogram. The grey datapoint is only used to calculate the average, but is not used directly for estimating the point C1 and C2.
Words in this image: average, semi-variance, variogram, range, sample weight, distance, cell, kriging, cell visitation order
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