Figure 12.

An ellipse of correlation is fitted around the ranges of the experimental semi-variograms calculated for the various directions.

The major and minor continuity directions are highlighted in green and red, respectively. These are projected (dashed lines) to allow an easier reading of their orientations with respect the coordinate system. The kriging algorithm is used to predict the value at the center of the mesh’s element through the correlation ellipse, which uses only the points that are statistically correlated to each other. The code to upscale a property using its spatial continuity information through kriging and mapping it onto a numerical method’s mesh is available.