| 1D/2D/3D | One/two-dimensional (depending on 1/2 space coordinates) |
| DP | Directed percolation (stochastic competition between decay and contamination) |
| LTB | Localized turbulent bands |
| DAH | downstream active head (part of an LTB controlling its propagation) |
| PCA | Probabilistic cellular automata |
| CML | Coupled map lattice (spatially-discrete iterative model) |