TY - RPRT AU - M. Jarraud AU - C. Girard AU - U. Cubasch CY - Shinfield Park, Reading DA - 02/1981 LA - eng M1 - 23 M3 - Technical Report PB - ECMWF PP - Shinfield Park, Reading PY - 1981 EP - 95 TI - Comparison of medium range weather forecasts made with models using spectral or finite difference techniques in the horizontal ER -