@phdthesis{76304, author = {R. Saunders}, title = {How good is the tangent linear approximation for satellite observation operators?}, year = {1996}, journal = {Workshop on non-linear aspects of data assimilation, 9-11 September 1996}, pages = {577-584}, month = {1996}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, language = {eng}, }