TY - CPAPER AU - F. Grazzini BT - Seminar on Diagnosis of Forecasting and Data Assimilation Systems, 7 - 10 September 2009 CY - Shinfield Park, Reading DA - 2010 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 2010 SP - 221 EP - 233 T2 - Seminar on Diagnosis of Forecasting and Data Assimilation Systems, 7 - 10 September 2009 TI - Synoptic systems: Flow-dependent and ensemble predictability ER -