@misc{indiciaeaf0c1cd5eaca,
  title = {Background Error Covariance Estimation using Information from a Single Model Trajectory with Application to Ocean Data Assimilation into the GEOS-5 Coupled Model},
  author = {Keppenne, Christian L. and Rienecker, Michele M. and Kovach, Robin M. and Vernieres, Guillaume and Koster, Randal D.},
  year = {2014},
  url = {https://ntrs.nasa.gov/citations/20140017716},
  note = {Source identifier: 20140017716}
}