TY - CPAPER AU - B. Mapes BT - Key issues in the parametrization of subgrid physical processes, 3-7 September 2001 CY - Shinfield Park, Reading DA - 2001 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 2001 SP - 89 EP - 94 T2 - Key issues in the parametrization of subgrid physical processes, 3-7 September 2001 TI - Empirical studies of unobservable parameters ER -