Climate instability during the last interglacial period recorded in the grip ice core

M. Anklin , J.M. Barnola (1) , J. Beer (2) , T. Blunier (3) , J. Chappellaz (4) , H.B. Clausen , D. Dahl-Jensen (5) , W. Dansgaard , M. de Angelis , Robert Delmas (6) , P. Duval , M. Fratta , Alain H. Fuchs , K. Fuhrer , N. Gundestrup , C. Hammer , P. Iversen , S. Johnsen , Jean Jouzel (7) , J. Kipfstuhl , Michel Legrand , C. Lorius , V. Maggi , H. Miller , J.C. Moore , H. Oeschger , G. Ormbelli , D.A. Peel , G. Raisbeck , D. Raynaud , C. Schott-Hvidberg , J. Schwander , H. Shoji , R. Souchez , B. Stauffer , J.P. Steffensen , M. Stievenard , A. Sveinbjornsdottir , T. Thorsteinsson , E.W. Wolff

1 UR ETGR (ETNA) - Érosion torrentielle, neige et avalanches
2 EAWAG - Swiss Federal Insitute of Aquatic Science and Technology [Dübendorf]
3 CEP - Climate and Environmental Physics [Bern]
4 LGGE - Laboratoire de glaciologie et géophysique de l'environnement
5 Centre for Ice and Climate [Copenhagen]
6 UT3 - Université Toulouse III - Paul Sabatier
7 LMCE - Laboratoire de Modélisation du Climat et de l'Environnement

Isotope and chemical analyses of the GRIP ice core from Summit, central Greenland, reveal that climate in Greenland during the last interglacial period was characterized by a series of severe cold periods, which began extremely rapidly and lasted from decades to centuries. As the last interglacial seems to have been slightly warmer than the present one, its unstable climate raises questions about the effects of future global warming.

Domaines: Planète et Univers [physics]

M. Anklin, J.M. Barnola, J. Beer, T. Blunier, J. Chappellaz, et al.. Climate instability during the last interglacial period recorded in the grip ice core. Nature, 1993, 364, pp.203-207. ⟨10.1038/364203a0⟩. ⟨in2p3-00000718⟩