The period between 75,000 and 20,000 years ago was characterized by high variability in climate1,2,3,4,5,6,7,8,9,10,11,12 and sea level13,14. Southern Ocean records of ice-rafted debris15 suggest a significant contribution to the sea level changes from melt water of Antarctic origin, in addition to likely contributions from northern ice sheets, but the relative volumes of melt water from northern and southern sources have yet to be established. Here we simulate the first-order impact of a range of relative meltwater releases from the two polar regions on the distribution of marine oxygen isotopes, using an intermediate complexity model. By comparing our simulations with oxygen isotope data from sediment cores, we infer that the contributions from Antarctica and the northern ice sheets to the documented sea level rises between 65,000 and 35,000 years ago13 were approximately equal, each accounting for a rise of about 15 m. The reductions in Antarctic ice volume implied by our analysis are comparable to that inferred previously for the Antarctic contribution to meltwater pulse 1A (refs 16, 17), which occurred about 14,200 years ago, during the last deglaciation.
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Langway, C. C. Jr, Oeschger, H. & Dansgaard, W. (eds) Greenland Ice Core: Geophysics, Geochemistry, and the Environment (Geophys. Monogr. 33, Am. Geophys. Union, Washington DC, 1985)
Grootes, P. M., Stuiver, M., White, J. W. C., Johnsen, S. & Jouzel, J. Comparison of oxygen isotope records from the GISP2 and GRIP Greenland ice cores. Nature 366, 552–554 (1993)
Dansgaard, W. et al. Evidence for general instability of past climate from a 250 kyr ice core. Nature 364, 218–219 (1993)
Rahmstorf, S. Timing of abrupt climate change: a precise clock. Geophys. Res. Lett. 30 doi:10.1029/2003GL017115 (2003)
Broecker, W. S. Abrupt climate change: causal constraints provided by the paleoclimate record. Earth Sci. Rev. 51, 137–154 (2000)
Voelker, A. H. et al. Global distribution of centennial-scale records for marine isotope stage (MIS) 3: a database. Quat. Sci. Rev. 21, 1185–1212 (2002)
Leuschner, D. C. & Sirocko, F. The low-latitude monsoon climate during Dansgaard–Oeschger cycles and Heinrich events. Quat. Sci. Rev. 19, 243–254 (2000)
Rohling, E. J., Mayewski, P. A. & Challenor, P. On the timing and mechanism of millennial-scale climate variability during the last glacial cycle. Clim. Dyn. 20, 257–267 (2003)
Pahnke, K., Zahn, R., Elderfield, H. & Schultz, M. 340,000-year centennial-scale marine record of Southern Hemisphere climatic oscillation. Science 301, 948–952 (2003)
Blunier, T. et al. Asynchrony of Antarctic and Greenland climate change during the last glacial period. Nature 394, 739–743 (1998)
Hemming, S. R. Heinrich events: Massive detritus layers of the North Atlantic and their global climate impact. Rev. Geophys. 42, RG1005, doi: 10.1029/2003RG 000128 (2004)
Shackleton, N. J., Hall, M. A. & Vincent, E. Phase relationships between millennial-scale events 64,000–24,000 years ago. Paleoceanography 15, 565–569 (2000)
Siddall, M. et al. Sea-level fluctuations during the last glacial cycle. Nature 423, 853–858 (2003)
Cutler, K. B. et al. Rapid sea-level fall and deep-ocean temperature change since the last interglacial period. Earth Planet. Sci. Lett. 206, 253–271 (2003)
Kanfoush, S. L. et al. Millennial-scale instability of the Antarctic ice sheet during the last glaciation. Science 288, 1815–1818 (2000)
Clark, P. U., Mitrovica, J. X., Milne, G. A. & Tamisiea Sea-level fingerprinting as a direct test for the source of global meltwater pulse 1A. Science 295, 2438–2441 (2002)
Weaver, A. J., Saenko, O. A., Clark, P. U. & Mitrovica, J. X. Meltwater pulse 1A from Antarctica as a trigger of the Bølling-Allerød warm interval. Science 299, 1709–1713 (2003)
Stocker, T. F. & Johnsen, S. J. A minimum thermodynamic model for the bipolar seesaw. Paleoceanography 18, PA1087, doi:10.1029/2003PA000920 (2003)
Ganopolski, A. & Rahmstorf, S. Rapid changes of glacial climate simulated in a coupled climate model. Nature 409, 153–158 (2001)
Barrett, P. J. Antarctic palaeoenvironment through Cenozoic times—a review. Terra Antartica 3, 103–119 (1996)
Peltier, W. R. Ice Age palaeotopography. Science 265, 195–201 (1994)
Huybrechts, P. Sea-level changes at the LGM from ice-dynamic reconstructions of the Greenland and Antarctic ice sheets during the glacial cycles. Quat. Sci. Rev. 21, 203–231 (2002)
Denton, G. H. & Hughes, T. J. Reconstructing the Antarctic Ice Sheet at the Last Glacial Maximum. Quat. Sci. Rev. 21, 193–202 (2002)
Anderson, J. B., Shipp, S. S., Lowe, A. L., Wellner, J. S. & Mosola, A. B. The Antarctic Ice Sheet during the Last Glacial Maximum and its subsequent retreat history: a review. Quat. Sci. Rev. 21, 49–70 (2002)
Annan, J. D., Hargreaves, J. C., Edwards, N. R. & Marsh, R. Parameter estimation in an intermediate complexity earth system model using an ensemble Kalman filter. Ocean Model. (in the press)
Edwards, N. R. & Marsh, R. Uncertainties due to transport parameter sensitivity in an efficient 3-D ocean-climate model. Clim. Dyn. (submitted) (2004)
Stenni, B. et al. A late-glacial high-resolution site and source temperature record derived from the EPICA Dome C isotope records (East Antarctica). Earth Planet. Sci. Lett. 217, 183–195 (2003)
Indermühle, A., Monnin, E., Stauffer, B., Stocker, T. F. & Wahlen, M. Atmospheric CO2 concentration from 60 to 20 kyr BP from the Taylor Dome ice core, Antarctica. Geophys. Res. Lett. 27, 735–738 (1999)
Rahmstorf, S. Bifurcations of the Atlantic thermohaline circulation in response to changes in the hydrological cycles. Nature 378, 145–149 (1995)
Rahmstorf, S. Rapid climate transitions in a coupled ocean–atmosphere model. Nature 372, 82–85 (1994)
We thank T. Stocker, J. Thomson, A.P. Roberts, W. Broecker and N. Shackleton for suggestions. All authors contributed equally to this work.
The authors declare that they have no competing financial interests.
Contains a summary of sediment-core observations for validation of the model output, further details on the model applied in the paper, and a selection of different modelling scenarios. (PDF 818 kb)
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Rohling, E., Marsh, R., Wells, N. et al. Similar meltwater contributions to glacial sea level changes from Antarctic and northern ice sheets. Nature 430, 1016–1021 (2004). https://doi.org/10.1038/nature02859
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