Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 7 2 2007 10.5194/acpd-7-4127-2007 http://www.atmos-chem-phys-discuss.net/7/4127/2007/ http://www.atmos-chem-phys-discuss.net/7/4127/2007/acpd-7-4127-2007.html http://www.atmos-chem-phys-discuss.net/7/4127/2007/acpd-7-4127-2007.pdf 4127 4163 2007-03-28 The multi-seasonal NO_y budget in coastal Antarctica and its link with surface snow and ice core nitrate: results from the CHABLIS campaign A. E. Jones a.jones@bas.ac.uk E. W. Wolff D. Ames S. J.-B. Bauguitte K. C. Clemitshaw Z. Fleming G. P. Mills A. Saiz-Lopez R. A. Salmon W. T. Sturges D. R. Worton British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK Dept. of Environmental Science and Technology, Imperial College of Science, Technology and Medicine, Ascot, UK School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK now at: Royal Holloway, University of London, Egham, UK now at: Inst. for Energy and Sustainable Development, De Montfort University, Leicester, UK now at: Earth And Space Science Division, Jet Propulsion Laboratory, California Institute of Technology, UK Measurements of individual NO_y components were carried out at Halley station in coastal Antarctica. The measurements were made as part of the CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow) and cover over half a year, from austral winter 2004 through to austral summer 2005. They are the longest duration and most extensive NO_y budget study carried out to date in polar regions. 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