Active regime · EUR7

Atlantic–European regimes (7, year-round), life cycle: largest I_wr ≥ 1.0 for ≥ 5 days. 0 = no regime, 1 = Atlantic Trough, 2 = Zonal Regime, 3 = Scandinavian Trough, 4 = Atlantic Ridge, 5 = European Blocking, 6 = Scandinavian Blocking, 7 = Greenland Blocking. — Grams et al. 2017 (Nat. Clim. Change 7, 557); Grams 2026 (WCD 7, 1641)