Figure 10.
The image displays a graph of semi-variance denoted on the vertical axis with a range from 0 to approximately 1.2 against lag distance marked on the horizontal axis measured in millimetres extending from 0 to 12. The graph features multiple lines representing variograms derived from random field realisations shown in grey. A solid red line illustrates the average variogram from these realisations. An additional line represents an exponential variogram calibrated from computed tomography scan data, indicating a comparison between these different data types. The background and relevant labels are integral for clarity, facilitating understanding of the data relationships presented.Comparison between variograms of generated random fields and the exponential variogram calibrated from the CT scan of the Ypresian clay core. A total of 200 realisations were generated for a 20 mm sample