@misc{79113,
  keywords = {workshop, data assimilation, flow-dependent},
  author = {L. Isaksen},
  title = {Use of analysis ensembles in estimating flow-dependent background error variances},
  year = {2007},
  month = {2007},
  url = {https://www.ecmwf.int/node/15666},
  language = {eng},
}