@Article{acpd-7-12541-2007, AUTHOR = {Tarasova, O. A. and Brenninkmeijer, C. A. M. and Jöckel, P. and Zvyagintsev, A. M. and Kuznetsov, G. I.}, TITLE = {A climatology of surface ozone in the extra tropics: cluster analysis of observations and model results}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {7}, YEAR = {2007}, NUMBER = {4}, PAGES = {12541--12572}, URL = {http://www.atmos-chem-phys-discuss.net/7/12541/2007/}, ISSN = {1680-7367} }