TY - CPAPER AU - R. Vautard AU - G. Plaut BT - Workshop on New Developments in Predictability, 13-15 November 1991 CY - Shinfield Park, Reading DA - 1991 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1991 SP - 175 EP - 204 T2 - Workshop on New Developments in Predictability, 13-15 November 1991 TI - Low-frequency oscillations and weather regimes in the Northern Hemisphere ER -