TY - GEN AU - Moore, A.M. AU - Vialard, J. TI - The Role of air-sea Interaction in controlling the optimal perturbations of low-frequency tropical coupled ocean-atmosphere modes T2 - ECMWF/Technical MEmorandum VL - 351 PY - 2001/// CY - Reading PB - ECMWF KW - PREVISAO NUMERICA KW - IM ER -