TY - CPAPER AU - J.M. Wallace AU - S. Tibaldi AU - Adrian Simmons BT - Workshop on Intercomparison of Large-scale Models used for Extended Range Forecasts, 30 June - 2 July 1982 CY - Shinfield Park, Reading DA - 1982 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1982 SP - 371 EP - 434 T2 - Workshop on Intercomparison of Large-scale Models used for Extended Range Forecasts, 30 June - 2 July 1982 TI - Reduction of systematic forecast errors in the ECMWF model through the introduction of an envelope orography ER -