Evolution in iteration count of assimilation of the meridional circulation for (a) case 1, (b) case 2, and (c) case 3. In case 1, from left to right, we show the stream function at the 1st, 3rd, 5th, 10th, and 19th iteration. Note the change in the color mapping, which shows the evolution of the model. For case 2, from left to right, we show the stream function at the 1st, 3rd, 10th, 25th, and 52nd iteration; for case 3, from left to right, we show the 1st, 30th, 50th, 65th, and 94th iteration. For cases 2 and 3, note that the stream function eventually evolves from the unicellular initial guess to the appropriate multicellular configuration.