Active regime · EUR7B

Atlantic–European regimes (7, Büeler variant), life cycle: largest I_wr ≥ 0.92 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. — Büeler et al. 2021 (QJRMS 147, 4283)