Illustration of the representation of simulated sand erosion, transport and deposition in the DECAL model (after Baas, 2002, Figure 3). Flow charts describing the scheduling of the model can be found in Baas (2002) and Nield and Baas (2008).

Spatial patterns produced by a NetLogo implementation of the Peterson (2002) model. This model is available as Model 4 at Millington (2022).