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. (2005). Model Simulations of the Impact of the 2002 Antarctic Ozone Hole on the Midlatitudes. Journal of the atmospheric sciences, 62(3), 871–884.
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Thebault E, Chulliat A, Maus S, Hulot G, LANGLAIS Benoit, Chambodut A, Menvielle M,. (2010). IGRF candidate models at times of rapid changes in core field acceleration. Earth Planet and Space, 62, 753–763.
Abstract: We submit three candidate models following the call for IGRF-11. We apply a simple modeling approach in spherical harmonics based on a quadratic Taylor expansion for the internal field time variations. We use the Dst magnetic index as a proxy for the external field variations. In order to compensate for the limitations incurred by such a conventional approach, we focus on the optimal selection of satellite data in space and time. We also show that some a priori knowledge about the core field state helps us to avoid the pitfall encountered in the case of rapid changes of core field accelerations. Indeed, various acceleration events of relevance for the IGRF 11th occurred between 2003 and 2010, one of them being a geomagnetic jerk. They could entail disagreements between IGRF candidate models for the secular variation (SV) if data prior to 2008 are used. Our SV and main field (MF) candidate models have a root mean square uncertainty less than 6 nT/yr and 8nT, respectively, with respect to the modeled magnetic field contributions. These values correspond to the intrinsic error associated with truncating SV and MF models to spherical harmonic degree 8 and 13, respectively, as requested for IGRF models.
Programme: 139
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Belviso S., Moulin C., Bopp L. & Stefels J. (2004). Assessment of a global climatology of oceanic dimethylsulfide (DMS) concentrations based on SeaWiFS imagery (1998-2001). Can. J. Fish. Aquat. Sci., 61(5), 804–816.
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Angelier F., Weimerskirch H., Dano S. & Chastel O. (2007). Age, experience and reproductive performance in a long-lived bird: a hormonal perspective. Behav. Ecol. Sociobiol. (Print), 61, 611–621.
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Blanchard P., Hanuise N., Dano S. & Weimerskirch H. (2007). Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross. Behav. Ecol. Sociobiol. (Print), 61, 767–773.
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Galley C. & Linder H.P. (2007). The phylogeny of the Pentaschistis calde (Danthonioideae, Poaceae) based on chloroplast DNA, and the evolution and loss of complex characters. Evolution, 61, 864–884.
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Tohjima Y., H. Mukai, Y. Nojiri, N. Yamagishi. (2008). Atmospheric O2/N2 measurements at two Japanese sites: estimation of global oceanic and land biotic carbon sinks and analysis of the variations in atmospheric potential oxygen (APO). Tellus series a-dynamic meteorology and oceanography, 60B, 213–225.
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Van Den Broeke M.R., Van Lipzig N P.M. & Van Meijgaard E. (2002). Momentum budget of the East Antarctic atmospheric boundary layer: results of a regional climate model. Journal of the atmospheric sciences, 59, 3117–3129.
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Magand O., Ferrari C., Gauchard P...A., Amato P. & Fain X. (2006). Analysis of Be and Pb air concentrations in Ny-Alesund, Svalbard : CHIMERPOL II project, preliminary results. Memoirs of National Institute of Polar Research, 59, 96–115.
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Alekhina, I., D. Marie, J.R. Petit , V.V. Lukin , V.N. Zubkov, and S. Bulat. (2007). Molecular analysis of bacterial diversity in kerosene-based drilling fluid from the deep ice borehole at Vostok, East Antarctica FEMS Microbiol. Ecol. FEMS Microbiol. Ecol., 59, 289–299.
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