@misc{80919, author = {Sebastien Massart}, title = {A new hybrid formulation for the background error covariance in the IFS: Implementation aspects}, year = {2018}, journal = {ECMWF Technical Memoranda}, number = {832}, month = {10/2018}, publisher = {ECMWF}, url = {https://www.ecmwf.int/node/18747}, doi = {10.21957/6gdjcd4j3}, language = {eng}, }