TY - GEN AU - Carla Cardinali AU - L. Isaksen AU - Erik Andersson BT - ECMWF Technical Memoranda CY - Shinfield Park, Reading DA - 06/2002 DO - 10.21957/1hc0fjne LA - eng M1 - 371 PB - ECMWF PP - Shinfield Park, Reading PY - 2002 EP - 17 T2 - ECMWF Technical Memoranda TI - Use and impact of automated aircraft data in 4D-Var UR - https://www.ecmwf.int/node/8580 ER -