Fig. 1: The hydrodynamic conditions that lead to differences in coefficient of variation of cross-set height, CV, recorded in cross-strata.
From: Quantitative constraints on flood variability in the rock record

a Dune migration and evolution in steady-state (equilibrium) flow conditions, and the resultant geometries of preserved cross-sets; b dune evolution and preservation in disequilibrium with prevailing flow, resulting in low CV.