Atmospheric Chemistry and Physics www.atmos-chem-phys.net 1680-7316 1680-7324 7 2 2007 10.5194/acp-7-435-2007 http://www.atmos-chem-phys.net/7/435/2007/ http://www.atmos-chem-phys.net/7/435/2007/acp-7-435-2007.html http://www.atmos-chem-phys.net/7/435/2007/acp-7-435-2007.pdf 435 441 2007-01-24 Mid-winter lower stratosphere temperatures in the Antarctic vortex: comparison between observations and ECMWF and NCEP operational models M. C. Parrondo parrondosc@inta.es M. Yela M. Gil P. von der Gathen H. Ochoa Instituto Nacional de Técnica Aeroespacial, Torrejón de Ardoz, Spain Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Germany Dirección Nacional de Antártico, Buenos Aires, Argentina Radiosonde temperature profiles from Belgrano (78° S) and other Antarctic stations have been compared with European Centre for Medium-Range Weather Forecasting (ECMWF) and National Centers for Environmental Prediction (NCEP) operational analyses during the winter of 2003. 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