@phdthesis{73679,
  author = {L. Berre and G. Desroziers and L. Raynaud and R. Montroty and F. Gibier},
  title = {Use of consistent operational ensemble variaitonal assimilaiton to estimate and diagnose analysis and background error covariances},
  year = {2009},
  journal = {ECMWF Workshop on Diagnostics of data assimilation system performance, 15 - 17 June 2009},
  pages = {47-56},
  month = {2009},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}