TY - CPAPER AU - Erik Andersson AU - F. Bouttier BT - Diagnosis of models and data assimilation systems, 6-10 September 1999 CY - Shinfield Park, Reading DA - 1999 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1999 SP - 173 EP - 186 T2 - Diagnosis of models and data assimilation systems, 6-10 September 1999 TI - Monitoring and quality control of the operational observing system ER -