TY - CPAPER AU - J-F. Louis BT - Seminar on the Parametrisation of the Physical Processes in the Free Atmosphere, 5-16 September 1977 CY - Shinfield Park, Reading DA - 1977 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1977 SP - 357 EP - 373 T2 - Seminar on the Parametrisation of the Physical Processes in the Free Atmosphere, 5-16 September 1977 TI - A case study of air mass transformation ER -