TY - CPAPER AU - M. Ghil AU - S.E. Cohn AU - J. Tavantzis AU - K. Bube AU - E. Isaacson BT - Seminar on Data Assimilation Methods, 15-19 September 1980 CY - Shinfield Park, Reading DA - 1980 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1980 SP - 249 EP - 334 T2 - Seminar on Data Assimilation Methods, 15-19 September 1980 TI - Applications of estimation theory to numerical weather prediction ER -