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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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Van Lipzig N P.M. & Van Den Broeke M.R. (2002). A model study on the relation between atmospheric boundary layer dynamics and pole ward atmospheric moisture transport in Antarctica. Tellus series a-dynamic meteorology and oceanography, 54A, 497–511.
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Weiss J., Vidot J., Gay M., Amaud L., Duval P. & Petit J.R. (2002). Dome Concordia ice microstructure: impurities effect on grain growth. Annals of glaciology, 35, 552–558.
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Gabrielli P., Barbante C., Planchon F A.M., Ferrari C., Delmonte B. & Boutron C.F. (2003). Changes in the occurrence of heavy metals in polar ice during the last climatic cycles, with special emphasis on the possible link between cosmic dust accretion rate and the 100 kyr cycle. Journal de Physique, 107, 499–503.
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Krinner G. & Genthon C. (2003). Tropospheric transport of continental tracers towardsAntarctica under varying climatic conditions. Tellus series a-dynamic meteorology and oceanography, 53, 54–70.
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Spahni R., Schwander J., Flückiger J., Stauffer B., Chappellaz J. & Raynaud D. (2003). The attenuation of fast atmospheric CH4 variations recorded in polar ice cores. Geophysical research letters, 30(11), 25–1.
Abstract: To reconstruct fast atmospheric trace gas variations from polar ice cores it has to be considered that their amplitudes are attenuated during the enclosure process in the ice. Relevant processes for the attenuation are the molecular diffusion in the open pores of the firn column and the gradual bubble close off in the depth of the transition from firn to ice. These processes depend mainly on temperature and accumulation rate and lead e.g. to a strong attenuation for cold sites with low accumulation rates. With a diffusion and enclosure model it is possible to calculate the attenuation for a single event and to compare ice core records from different sites. We investigate the atmospheric methane (CH4) variation during the cold event 8200 years ago and calculate that its amplitude as recorded in the EPICA Dome C ice core is attenuated to a magnitude between 34% and 59%.
Programme: 960
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Van Den Broeke M.R. & Van Lipzig N P.M. (2003). Factors controlling the near-surface wind field in Antarctica. Monthly weather review, 131, 733–743.
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Barnes P.R.F., Wolff E.W., Mallard D.C. & Mader H.M. (2003). SEM studies of the morphology and chemistry of polar ice. Microsc. Res. Tech., 62(1), 62–69.
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Delmonte B., Basile Doelsch I., Petit J.R., Maggi W., Revel Rolland M., Michard A., Jagoutz E. & Grousset F.E. (2004). Comparing the Epica and Vostok dust records duriing the last 220,000 years : stratigraphical correlation and provenance in glacial periods. Earth-science reviews, 66, 63–87.
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Delmonte B., Petit J.R. & Maggi W. (2002). LGM-Holocene changes and Holocene millennial-scale oscillations of dust particles in the EPICA Dome C ice core, East Antarctica. Annals of glaciology, 35, 306–312.
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