TY - CPAPER AU - G.J. Cats AU - W. Wergen BT - Workshop on Current Problems in Data Assimilation, 8-10 November 1982 CY - Shinfield Park, Reading DA - 1982 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1982 SP - 343 EP - 372 T2 - Workshop on Current Problems in Data Assimilation, 8-10 November 1982 TI - Analysis of large scale normal modes by the ECMWF analysis scheme ER -