Direct comparison of 2D and 1D simulations results for h₀ = 0.07, q_p = 2.7 × 10^–5 and Q₀ = 8. Rows are the same as in Fig. 2. Columns correspond to different approaches for calculating the inverse vortensities I_v,lib and I_v,cross: the memory timescale model (Section 4.1, left), the alternative model (Section 6.2, middle) and the steady state solution (Section 6.3, right). Opaque lines are for 1D simulations, transparent lines for 2D simulations.