TY - GEN AU - Richard Engelen BT - ECMWF newsletter C1 - Research DA - 2005 DO - 10.21957/104re762ma IS - 104 LA - eng PY - 2005 SE - Meteorology SP - 14 EP - 18 T2 - ECMWF newsletter TI - CO2 from space: estimating atmospheric CO2 within the ECMWF data assimilation system UR - https://www.ecmwf.int/node/18105 ER -