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Reconstructing the last interglacial at Summit, Greenland: Insights from GISP2

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2016-08-30
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National Academy of Sciences
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The Eemian (last interglacial, 130-115 ka) was likely the warmest of all interglacials of the last 800 ka, with summer Arctic temperatures 3-5 degrees C above present. Here, we present improved Eemian climate records from central Greenland, reconstructed from the base of the Greenland Ice Sheet Project 2 (GISP2) ice core. Our record comes from clean, stratigraphically disturbed, and isotopically warm ice from 2,750 to 3,040 m depth. The age of this ice is constrained by measuring CH_4 and delta O^18 of O_2, and comparing with the historical record of these properties from the North Greenland Ice Core Project (NGRIP) and North Greenland Eemian Ice Drilling (NEEM) ice cores. The d^18 O_ice, d^15N of N_2, and total air content for samples dating discontinuously from 128 to 115 ka indicate a warming of similar to 6 degrees C between 127-121 ka, and a similar elevation history between GISP2 and NEEM. The reconstructed climate and elevation histories are compared with an ensemble of coupled climate-ice-sheet model simulations of the Greenland ice sheet. Those most consistent with the reconstructed temperatures indicate that the Greenland ice sheet contributed 5.1 m (4.1-6.2 m, 95% credible interval) to global eustatic sea level toward the end of the Eemian. Greenland likely did not contribute to anomalously high sea levels at ~127 ka, or to a rapid jump in sea level at ~120 ka. However, several unexplained discrepancies remain between the inferred and simulated histories of temperature and accumulation rate at GISP2 and NEEM, as well as between the climatic reconstructions themselves.
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© 2016 National Academy of Sciences. We thank the members of the National Ice Core Laboratory for their support in recovering samples from the ice core archive. We are grateful to Mahe Perrette for help with the statistical analysis. This work was supported by Grants PLR 1107343 and 1107744 from the U.S. National Science Foundation. A.R. was funded by the Marie Curie Seventh Framework Programme [Project PIEF-GA-2012-331835; European Ice Sheet Modeling Initiative (EURICE)] and the Spanish Ministerio de Economía y Competitividad [Project CGL2014-59384-R; Modeling Abrupt Climate Change (MOCCA)]. M.L.B. was funded by the Princeton-BP Amoco Carbon Mitigation Initiative.
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1. Clark PU, Huybers P (2009) GLOBAL CHANGE Interglacial and future sea-level. Nature 462(7275):856-857. 2. Kopp RE, Simons FJ, Mitrovica JX, Maloof AC, Oppenheimer M (2009) Probabilistic assessment of sea-level during the last interglacial stage. Nature 462(7275):863-U851. 3. IPCC, 2013: Annex I: Atlas of Global and Regional Climate Projections [van Oldenborgh GJ, et al. (eds.)]. In: Climate Change 2013: The Physical Sci­ence Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker TF, et al. (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. 4. IPCC, 2013: Annex II: Climate System Scenario Tables [Prather M, et al. (eds.)]. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker TF, et al. (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. 5. Dutton A, et al. (2015) Sea-level rise due to polar ice-sheet mass loss during past warm periods. Science 349(6244):aaa4019. 6. NEEM (2013) Eemian interglacial reconstructed from a Greenland folded ice core. Nature 493(7433):489-494. 7. Raynaud D, et al. (2007) The local insolation signature of air content in Antarctic ice. A new step toward an absolute dating of ice records. Earth Planet. Sci. Lett. 261:337-349. 8. Suwa M, von Fischer JC, Bender ML, Landais A, Brook EJ (2006) Chronology reconstruction for the disturbed bottom section of the GISP2 and the GRIP ice cores: Implications for Termination II in Greenland. J. Geophys. Res.-Atmos. 111: 10.1029/2005JD006032. 9. Chappellaz J, Brook E, Blunier T, Malaize B (1997) CH4 and delta O-18 of O-2 records from Antarctic and Greenland ice: A clue for stratigraphic disturbance in the bottom part of the Greenland Ice Core Project and the Greenland Ice Sheet Project 2 ice cores. J. Geophys. Res.-Oceans 102:26547-26557. 10. Grootes PM, Stuiver M, White JWC, Johnsen S, Jouzel J (1993) Comparison of oxygenisotope records from the GISP2 and GRIP Greenland ice cores. Nature 366(6455):552-554. 11. Johnsen SJ, et al. (2001) Oxygen isotope and palaeotemperature records from six Greenland ice-core stations: Camp Century, Dye-3, GRIP, GISP2, Renland and NorthGRIP.J. Quat. Sci. 16(4):299-307. 12. Capron E, et al. (2010) Synchronising EDML and NorthGRIP ice cores using delta O-18 of atmospheric oxygen (delta O-18(atm)) and CH4 measurements over MIS5 (80-123 kyr). Quat. Sci. Rev. 29:222-234. 13. Loulergue L, et al. (2008) Orbital and millennial-scale features of atmospheric CH4 over the past 800,000 years. Nature 453(7193):383-386. 14. Dreyfus GB (2008) Dating an 800,000 year Antarctic ice core record using the isotopic composition of trapped air. Thesis Dissertation. Princeton University Press. 15. Greve R (1997) A continuum--mechanical formulation for shallow polythermal ice sheets. Philos. Trans. R. Soc. London. Ser. A Mathematical, Phys. Eng. Sci. 355(1726):921–974. 16. Robinson A, Calov R, Ganopolski A (2010) An efficient regional energy-moisture balance model for simulation of the Greenland Ice Sheet response to climate change. Cryosph. 4(2):129–144. 17. Ganopolski A, Calov R (2011) The role of orbital forcing, carbon dioxide and regolith in 100 kyr glacial cycles. Clim. Past 7:1415–1425. 18. Robinson A, Calov R, Ganopolski A (2012) Multistability and critical thresholds of the Greenland ice sheet. Nat. Clim. Chang. 2(4):429–432. 19. van de Berg WJ, van den Broeke MR, van Meijgaard E, Kaspar F (2013) Importance of precipitation seasonality for the interpretation of Eemian ice core isotope records from Greenland. Clim. Past 9:1589-1600. 20. Vinther BM, et al. (2009) Holocene thinning of the Greenland ice sheet. Nature 461(7262):385-388. 21. Johnsen SJ, Dansgaard W, White JWC (1989) The origin of Arctic precipitation under present and glacial conditions. Tellus Ser. B-Chem. Phys. Meteorol. 41:452-468. 22. Merz N, Born A, Raible CC, Fischer H, Stocker TF (2014) Dependence of Eemian Greenland temperature reconstructions on the ice sheet topography. Clim. Past 10:1221-1238. 23. Sowers T, Bender ML, Raynaud D (1989) Elemental and isotopic composition of occluded O2 and N2 in polar ice. J. Geophys. Res.-Atmos. 94:5137-5150. 24. Herron MM, Langway CC (1980) Firn Densification – An empirical model. J. Glaciology. 25(93):373-385. 25. Martinerie P, Raynaud D, Etheridge DM, Barnola JM, Mazaudier D (1992) Physical and climatic parameters which influence the air content in polar ice. Earth Planet. Sc. Lett. (112):1–13. 26. Eicher O, Baumgartner M, Schilt A., Schmitt J, Schwander J, Stocker TF, Fischer H (2015) Climatic and insolation control on the high-resolution total air content in the NGRIP ice core. Cllim. Past Discuss. 11,5509-5548. 27. Lipenkov V, Raynaud D, Loutre M, Duval P (2011) On the potential of coupling air content and O2/N2 from trapped air for establishing an ice core chronology tuned on local insolation. Quat. Sci. Rev. 30:3280-3289. 28. Schilt A, et al. (2010) Atmospheric nitrous oxide during the last 140,000 years. Earth Planet. Sci. Lett. 300:33-43. 29. Buiron D, et al. (2011) TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica. Clim. Past 7(1):1-16. 30. Petit JR, et al. (1999) Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. Nature 399(6735):429-436. 31. Cuffey KM, Marshall SJ (2000) Substantial contribution to sea level rise during the last interglacial from the Greenland Ice Sheet. Nature 404: 591-594. 32. Capron E, et al. (2014) Temporal and spatial structure of multi-millennial temperature changes at high latitudes during the Last Interglacial. Quat. Sci. Rev. 103:116-133. 33. Bakker P, et al. (2013) Last interglacial temperature evolution – a model inter-comparison. Clim. Past 9(2):605–619. 34. Quiquet, A, Ritz C, Punge HJ, Salas y Melia D (2013) Greenland contribution to sea level rise during the last glacial period: a modeling study driven and constrained by ice core data. Clim. Past 9: 353-366. 35. Stone EJ, Lunt DJ, Annan JD, Hargreaves JC (2013) Quantification of the Greenland ice sheet contribution to Last Interglacial sea level rise. Clim. Past 9: 621-639. 36. Helsen MM, van der Berg WJ, van de Wal RSW, van den Broeke MR, Oerlemans J (2013) Coupled regional climate-ice sheet simulation shows limited Greenland ice loss during the Eemian. Clim. Past 9: 1773-1788. 37. O’Leary MJ, et al. (2013) Ice sheet collapse following a prolonged period of stable sea-level during the last interglacial. Nature Geoscience 6:796-800. 38. Steig EJ, et al. (2015) Influence of West Antarctic Ice Sheet collapse on Antarctic surface climate. Geophys. Res. Lett. 42(12):10.1002/2015GL063861. 39. Grachev AM, Brook EJ, Severinghaus JP, Pisias NG (2009) Relative timing and variability of atmospheric methane and GISP2 oxygen isotopes between 68 and 86 ka. Glob. Biogeochem. Cycle 23:10.1029/2008GB003330. 40. Mitchell LE, Brook EJ, Sowers T, McConnell JR, Taylor K (2011) Multidecadal variability of atmospheric methane, 1000-1800 CE.J. Geophys. Res.-Biogeosci. 116: 10.1029/2010JG001441. 41. Rosen JL, et al. (2014) An ice core record of near-synchronous global climate changes at the Bolling transition. Nature Geoscience 7(6):459-463. 42. Emerson S, Quay PD, Stump C, Wilbur D, Schudlich R (1995) Chemical tracers of productivity and respiration in the subtropical Pacific Ocean.J. Geophys. Res.-Oceans 100:15873-15887. 43. Dreyfus GB, et al. (2007) Anomalous flow below 2700 m in the EPICA Dome C ice core detected using delta O-18 of atmospheric oxygen measurements. Clim. Past. 3(2):341-353. 44. Bender ML, Sowers T, Lipenkov V (1995) On the concentrations of O-2, N-2, and Ar in trapped gases from ice cores. J. Geophys. Res.-Atmos. 100:18651-18660. 45. Bender ML, Burgess E, Alley RB, Barnett B, Clow GD (2010) On the nature of the dirty ice at the bottom of the GISP2 ice core. Earth Planet. Sci. Lett. 299:466-473. 46. Souchez R, Janssens L, Lemmens M, Stauffer B (1995) Very-low oxygen concentration in basal ice from Summit, Central Greenland. Geophys. Res. Lett. 22(15):2001-2004. 47. Seierstadt I, et al. (2014) Consistently dated records from the Greenland GRIP, GISP2 and NGRIP ice cores for the past 104 ka reveal regional millennial-scale δ 18O gradients with possible Heinrich event imprint. Quat. Sci. Rev. 106:29-46. 48. Raynaud D, Chappellaz J, Ritz C, Martinerie P (1997) Air content along the Greenland Ice Core Project core: A record of surface climatic parameters and elevation in central Greenland. J. Geophys. Res.-Oceans 102:26607-26613. 49. Martinerie P, et al. (1994) Air content paleo record in the Vostok ice core (Antarctica): A mixed record of climatic and glaciological parameters, J. Geophys. Res. 99:10565–10576. 50. Baumgartner M et al. (2012) High-resolution interpolar difference of atmospheric methane around the Last Glacial Maximum. Biogeosciences 9: 3961-3977.
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