TY - SLIDE KW - annual seminar AU - A.T. Weaver AU - N. Daget AU - E. Machu AU - S. Ricci AU - P. Rogel AU - C. Deltel AU - J. Vialard AU - D. Anderson BT - ECMWF Annual Seminar 2003 C1 - Events DA - 2003 LA - eng PY - 2003 T2 - ECMWF Annual Seminar 2003 T3 - ECMWF Annual Seminar TI - Constructing a background error covariance model for variational ocean data assimilation.. with an emphasis on the tropics ER -