The model reproduces qualitative morphological signatures of experimental wave patterns. (A) Model wave pattern typical of the wave instability domain. (A′) Representative experimental wave pattern. Arrowheads in A and A′ point to wave front dislocations. See also Video 11. Scale bar = 20 µm. (B and B′) Model wave pattern typical of the oscillatory domain (B) and representative experimental wave pattern (B′). Arrowhead in B points to dislocation. Yellow dashed lines in B and B′ mark line defects separating wave trains (see E). See also Video 11. Scale bar = 20 µm. (C–E) Characteristic wave pattern features in the model (top) and experiment (bottom). Scale bars = 20 µm. (C) A grain boundary; arrowheads point to the wave front ends with a typical bulbous morphology. (D) Stable two-armed spirals with multiple turns. (E) A line defect (dash line) on the interface of two wave trains whose wave vectors are shown by yellow arrows. (F) Relative observation frequency of 10 morphological features of wave patterns (see Materials and methods for details). (G) Biphasic behavior of the wave amplitude in the model and the qualitative mapping of the two experimental systems onto the model. Color transparency indicates confidence of mapping boundaries.