TY - CPAPER AU - M. Georgelin AU - R. El-Khatib AU - Y. Lemaitre BT - Workshop on Orography, 10-12 November 1997 CY - Shinfield Park, Reading DA - 1997 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1997 SP - 199 EP - 227 T2 - Workshop on Orography, 10-12 November 1997 TI - Why is a model topography still not described accurately enough at mesoscale? How can it be improved? What we have learned from the COMPARE experiment ER -