TY - CPAPER AU - W.R. Peltier AU - T.L. Clark BT - Seminar/Workshop on Observation, Theory and Modelling of Orographic effects. Seminar: 15-19 September 1986, Workshop: 19-20 September 1986 CY - Shinfield Park, Reading DA - 1986 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1986 SP - 223 EP - 251 T2 - Seminar/Workshop on Observation, Theory and Modelling of Orographic effects. Seminar: 15-19 September 1986, Workshop: 19-20 September 1986 TI - Nonlinear mountain waves and wave-mean flow interaction: elements of a drag parameterization VL - 1 ER -