Atmospheric Chemistry and Physics www.atmos-chem-phys.net 1680-7316 1680-7324 7 13 2007 10.5194/acp-7-3571-2007 http://www.atmos-chem-phys.net/7/3571/2007/ http://www.atmos-chem-phys.net/7/3571/2007/acp-7-3571-2007.html http://www.atmos-chem-phys.net/7/3571/2007/acp-7-3571-2007.pdf 3571 3578 2007-07-06 Impact of using different ozone cross sections on ozone profile retrievals from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements X. Liu xliu@umbc.edu K. Chance C. E. Sioris T. P. Kurosu Atomic and Molecular Physics Division, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA Goddard Earth Sciences and Technology Center, University of Maryland Baltimore County, Baltimore, MD, USA Atmospheric Science and Technology Directorate, Environment Canada, Toronto, ON, Canada We investigate the effect of using three different cross section data sets on ozone profile retrievals from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements (289–307 nm, 326–337 nm). These include Bass-Paur, Brion, and GOME flight model cross sections (references below). Using different cross sections can significantly affect the retrievals, by up to 12 Dobson Units (DU, 1 DU=2.69×10¹⁶ molecules cm^−2) in total column ozone, up to 10 DU in tropospheric column ozone, and up to 100% in retrieved ozone values for individual atmospheric layers. 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