@misc{73829, author = {Roberto Buizza}, title = {Computation of optimal perturbations using a local projection operator: A winter casestudy}, year = {1993}, journal = {ECMWF Technical Memoranda}, number = {196}, pages = {35}, month = {10/1993}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, url = {https://www.ecmwf.int/node/8413}, doi = {10.21957/ftmf8rtst}, language = {eng}, }