Climate of the Past Discussions www.clim-past-discuss.net 1814-9340 1814-9359 5 1 2009 10.5194/cpd-5-99-2009 http://www.clim-past-discuss.net/5/99/2009/ http://www.clim-past-discuss.net/5/99/2009/cpd-5-99-2009.html http://www.clim-past-discuss.net/5/99/2009/cpd-5-99-2009.pdf 99 125 2009-01-08 A few prospective ideas on climate reconstruction: from a statistical single proxy approach towards a multi-proxy and dynamical approach J. Guiot guiot@cerege.fr H. B. Wu V. Garreta C. Hatté M. Magny CEREGE, CNRS/Aix-Marseille Université UMR6635, BP 80, 13 545 Aix-en-Provence cedex, France ECCOREV, CNRS/Aix-Marseille Université FR3098, BP 80, 13 545 Aix-en-Provence cedex, France Institut des Sciences de l'Environnement, UQAM, Montréal PQ, H3C 3P8, Canada LSCE, CNRS/CEA UMR1572, Domaine du CNRS, 91 198 Gif-sur-Yvette, France CNRS, UMR6249, Laboratoire Chrono-Environnemment, UFR des Sciences et Techniques, 16 Route de Gray, 25 030 Besanon, France Important progresses in palaeoclimatological studies have been made using statistical methods. But they are in somewhere limited as they take the present as an absolute reference. The availability of mechanistic models to simulate the proxies measured in the sediment cores gives now the possibility to relax this constraint. In particular, vegetation models provide outputs comparable to pollen data. 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