TY - GEN AU - E. Gerard AU - R. Saunders BT - ECMWF Technical Memoranda CY - Shinfield Park, Reading DA - 01/1999 DO - 10.21957/vixgyq2df LA - eng M1 - 270 PB - ECMWF PP - Shinfield Park, Reading PY - 1999 EP - 28 T2 - ECMWF Technical Memoranda TI - 4DVAR assimilation of SSM/I total column water vapour in the ECMWF model UR - https://www.ecmwf.int/node/9702 ER -