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www.clim-past-discuss.net/6/461/2010/
doi:10.5194/cpd-6-461-2010
© Author(s) 2010. This work is distributed
under the Creative Commons Attribution 3.0 License.
Statistical issues about solar-climate relations
1Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS-UVSQ 8212, IPSL, Gif-sur-Yvette, France
2Laboratoire de Météorologie Dynamique, UMR 8539, Ecole Normale Supérieure, Paris, France
3Centre Européen de Recherche et Formation Avancées en Calcul Scientifique, Toulouse, France
4Météo-France, Division de la Climatologie, Toulouse, France
5Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement, UMR 6635, Aix-en-Provence, France
Abstract. Assessing the relationship between temperature variations and solar activity requires much physical and statistical insight. This paper is devoted to the latter. We focus on the statistical significance of diagnostics to obtain properties of the variability of time series. We illustrate our study by analyses of European temperature datasets and geomagnetic field variations. The goal of the paper is to provide a framework to control the spurious results that statistical tools can generate. We show that some variability diagnostics barely distinguish observed temperatures from auto-regressive random processes. In general, the variability diagnostics between temperature and geomagnetic activity are not significantly correlated, due to a low number of degrees of freedom.
Discussion Paper (PDF, 2478 KB) Interactive Discussion (Closed, 7 Comments) Final Revised Paper (CP)
Notice on Discussion StatusCitation: Yiou, P., Bard, E., Dandin, P., Legras, B., Naveau, P., Rust, H. W., Terray, L., and Vrac, M.: Statistical issues about solar-climate relations, Clim. Past Discuss., 6, 461-487, doi:10.5194/cpd-6-461-2010, 2010. Bibtex EndNote Reference Manager XML
