Self-organized criticality: power-law fire size distributions emerge without tuning
Model Parameters
P(s) ~ s^{-τ}, τ ≈ 1.0–1.3 p/f ≫ 1 → SOC regime Σ fires ~ power law
Drossel-Schwabl (1992): empty→tree with prob p, tree→fire if neighbor burns OR lightning with prob f. In limit f/p→0 system self-organizes to critical state with power-law fire sizes — no parameter tuning needed!