Liakopoulos TH2M/H2M benchmark: mismatch with Grunwald et al. (2022) Fig. 9 (vertical displacement profile)

I’m comparing Fig. 9 in Grunwald et al. (2022) (Liakopoulos test) with the results shown in the OGS benchmark notebook/page for the Liakopoulos case.

In particular, the vertical displacement profile differs noticeably: not only the magnitude, but the curvature appears inverted relative to the paper figure.

Could someone clarify whether:

  1. The benchmark notebook/page is intended to reproduce Fig. 9 exactly, or if it uses a different configuration/variant (e.g., different initial/boundary conditions, output times, sign convention, or plotted quantity)?
  2. There were changes in the setup since the paper (material laws, parameters, output selection, etc.) that explain the discrepancy?

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