TY - RPRT AU - Niels Bormann AU - Jean-Noël Thépaut C1 - Research CY - Shinfield Park, Reading DA - 05/2003 LA - eng M1 - 13 N1 - Submitted to Monthly Weather Review PB - ECMWF PP - Shinfield Park, Reading PY - 2003 EP - 13 T3 - EUMETSAT/ECMWF Fellowship Programme Research Reports TI - Impact of MODIS Polar Winds in ECMWF's 4DVAR Data Assimilation System ER -