@phdthesis{73450, author = {Erik Andersson and J. Haseler and P. Undén and P. Courtier and G.A. Kelly and Drasko Vasiljevic and C. Brankovic and Carla Cardinali and C. Gaffard and A. Hollingsworth and C. Jakob and Peter Janssen and E. Klinker and A. Lanzinger and M.J. Miller and Florence Rabier and Adrian Simmons and B. Strauss and Jean-Noël Thépaut and P. Viterbo}, title = {The ECMWF implementation of three dimensional variational assimilation (3D-Var): Eexperimental results}, year = {1996}, journal = {Workshop on non-linear aspects of data assimilation, 9-11 September 1996}, pages = {163-194}, month = {1996}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, language = {eng}, }