Figure 1. Measured concentrations from the EPICA Dome C ice core. Data
are on an ice depth scale. dD are averaged over 3.85-m sections; chemical
concentrations are averaged over 2.2-m sections.
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Nature
Vol. 440, pp. 491-496, 23 March 2006.
E. W. Wolff1, H. Fischer2, F. Fundel2, U. Ruth2, B. Twarloh2,
G. C. Littot1, R. Mulvaney1, R. Röthlisberger1,
M. de Angelis3, C. F. Boutron3, M. Hansson4, U. Jonsell4,
M. A. Hutterli1,5, F. Lambert5, P. Kaufmann5, B. Stauffer5,
T. F. Stocker5, J. P. Steffensen6, M. Bigler5,6,
M. L. Siggaard-Andersen6, R. Udisti7, S. Becagli7, E. Castellano7,
M. Severi7, D. Wagenbach8, C. Barbante9,10, P. Gabrielli10 & V. Gaspari9.
1 British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, UK.
2
Alfred Wegener Institute for Polar and Marine Research, Columbusstrasse, D-27568
Bremerhaven, Germany.
3
Laboratoire de Glaciologie et Géophysique de l'Environnement, BP96, 38402 St Martin d'Hères cedex, France.
4
Department of Physical Geography and
Quaternary Geology, Stockholm University, 106 91 Stockholm, Sweden.
5
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, CH-3012 Bern,
Switzerland.
6
Department of Geophysics, Juliane Maries Vej 30, University of Copenhagen, DK-2100 Copenhagen O, Denmark.
7
Department of Chemistry-Analytical Chemistry
Section, Scientific Pole-University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
8
Institut für Umweltphysik, University of Heidelberg, INF 229,
69120 Heidelberg, Germany.
9
Environmental Sciences Department, University of Venice, Calle Larga S. Marta 2137,
10
Institute for the Dynamics of Environmental Processes-
CNR, University of Venice, I-30123 Venice, Italy.
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