TY - GEN AU - Florence Rabier AU - A. McNally BT - ECMWF Technical Memoranda CY - Shinfield Park, Reading DA - 09/1993 DO - 10.21957/twc6mttgn LA - eng M1 - 195 PB - ECMWF PP - Shinfield Park, Reading PY - 1993 EP - 36 T2 - ECMWF Technical Memoranda TI - Evaluation of forecast error covariance matrix UR - https://www.ecmwf.int/node/11801 ER -