Skip to main content
Article thumbnail
Location of Repository

Sensitivity of the Greenland Ice Sheet to Pliocene sea surface temperatures

By Daniel J. Hill, Aisling M. Dolan, Alan M. Haywood, Stephen J. Hunter and Danielle K. Stoll

Abstract

The history of theGrIS (Greenland Ice Sheet), particularly in warm climates of the pre-Quaternary, is poorly known. IRD\ud (ice-rafted debris) records suggest that the ice sheet has existed, at least transiently, since theMiocene and potentially since as long ago as\ud the Eocene. As melting of the GrIS is a key uncertainty in future predictions of climate and sea-level, understanding its behaviour and role\ud within the climate system during pastwarm periods could provide important constraints. The Pliocene has been identified as a key period\ud for understanding warmer than modern climates. Detailed micropalaeontological analyses of the mid-Piacenzian Warm Period (3.264 -\ud 3.025 Ma) have produced a series of SST (sea-surface temperature) reconstructions (PRISM2-AVE, PRISM2-MAX, PRISM2-MIN and\ud PRISM3).Use of these different SSTswithin theHadley CentreGCM(GeneralCirculationModel) and BASISM (BritishAntarctic Survey\ud Ice Sheet Model), consistently show large reductions of Pliocene Greenland ice volumes compared to modern. The changes in climate\ud introduced by the use of different SST reconstructions do change the predicted ice volumes, mainly through precipitation\ud feedbacks. However, the models show a relatively low sensitivity of modelled Greenland ice volumes to different mid-Piacenzian SST\ud reconstructions, with the largest SST induced changes being 20% of Pliocene ice volume or less than a metre of sea-level rise

Publisher: Micropaleontology Press
Year: 2010
OAI identifier: oai:nora.nerc.ac.uk:12794

Suggested articles

Citations

  1. (2001). A 340,000 year records of ice rafting, palaeoclimatic fluctuations, and shelf-crossing glacial advances in the southwestern Labrador Sea. Global and Planetary Change,
  2. (1995). A high resolution global sea surface temperature climatology.
  3. (2008). A new Global Biome Reconstruction and Data-Model Comparison for the middle Pliocene. doi
  4. (2001). A new ice thickness and bed data set for the Greenland ice sheet, 1. Measurement, data reduction, and errors.
  5. (1999). A new numerical model of coupled inland ice sheet, ice stream and ice shelf flow and its application to the West Antarctic Ice Sheet.
  6. (2005). A Pliocene-Pleistocene stack of 57 globally distributed benthic 18O records.
  7. (1987). A simple method for the determination of ice-rafted debris in sediment cores.
  8. (1997). Arctic Ocean evidence for late Quaternary initiation of northern Eurasian ice sheets.
  9. (2004). Catastrophic ice shelf breakup as the source of Heinrich event icebergs.
  10. (2009). Constraints on the amplitude of Mid-Pliocene (3.6-2.4Ma) eustatic sea-level fluctuations from the New Zealand shallow-marine sediment record.
  11. (2001). Dynamical processes involved in the retreat of marine ice sheets.
  12. (2008). Evidence for glaciation in the Northern Hemisphere back to 44 Ma from ice-rafted debris in the Greenland Sea.
  13. (2009). Evidence for middle Eocene Arctic sea ice from diatoms and ice-rafter debris. doi
  14. (1993). Evidence for relative climatic stability of Antarctica during the Early Pliocene: a marine perspective. Geografiska Annaler,
  15. (1988). Evolution of the East Antarctic ice sheet: an assessment by modelling.
  16. (2000). Global scale palaeoclimate reconstruction of the middle Pliocene Climate using the UKMO GCM: initial results.
  17. (2009). High Earth-system climate sensitivity determined from Pliocene carbon dioxide concentrations.
  18. (2007). Hill et al.: Sensitivity of the Greenland Ice Sheet to Pliocene sea surface temperatures DOWSETT, H.J.,
  19. (1998). History of a stable ice margin – East Greenland during the Middle and Upper Pleistocene. Quaternary Science Reviews,
  20. (2002). Ice sheets and sea level of the Last Glacial Maximum.
  21. (1994). Ice-rafted debris associated with binge/purge oscillations of the Laurentide Ice Sheet.
  22. (2005). Ice-sheet and sea-level changes.
  23. (2006). Ice-sheet contributions to future sea-level change.
  24. (2001). Influence of channelling on heating in ice-sheet flows.
  25. (2002). Intensification of Northern Hemisphere glaciations in the circum Atlantic region (3.5-2.4 Ma) – ice-rafted detritus evidence.
  26. (2006). Interglacial Project members,
  27. (1998). Late Cenozoic seismic stratigraphy and glacial geological development of the East Greenland and Svalbard-Barents Sea continental margins.
  28. (2008). Late Pliocene Greenland glaciation controlled by a decline in atmospheric CO2 levels.
  29. (1995). Marine surface temperature: observed variations and data requirements.
  30. (1993). Microfaunal evidence for elevated Pliocene temperatures in the Arctic-Ocean.
  31. (2009). Mid-Pliocene sea level and continental ice volume based on coupled benthic Mg/Ca palaeotemperatures and oxygen isotopes.
  32. (1996). Mid-Pliocene warmth: Stronger greenhouse and stronger conveyor.
  33. (2005). Middle Pliocene sea surface temperature variability.
  34. (1996). Middle Pliocene vegetation: Reconstructions, paleoclimatic inferences and boundary conditions for climate modeling. doi
  35. (2001). Millenial-scale climate change and oceanic processes in the late Pliocene and early Pleistocene.
  36. (1996). Modeling of middle Pliocene climate with the NCAR GENESIS general circulation model. doi
  37. (2009). New quantitative evidence of extreme warmth in the Pliocene Arctic.
  38. (1996). Oak leaves as biosensors of late Neogene and early Pleistocene paleoatmospheric CO2 concentrations.
  39. (2007). Observations: Changes in Snow, Ice and Frozen Ground. In: Climate Change 2007: The Physical Science Basis:
  40. (1999). On the numerical computation of temperature in an ice sheet.
  41. (1999). On the predictability of the interannual behaviour of the Madden-Julian Oscillation and its relationship with El Niño.
  42. (2004). On the response of the Greenland Ice Sheet to greenhouse climate change.
  43. (2006). Paleoclimatic evidence for future ice-sheet instability and rapid sea-level rise.
  44. (1991). Parameteterization of melt rate and surface temperature on the Greenladn Ice Sheet.
  45. (1997). Parametrisation of momentum transport by convection II: tests in single column and general circulation models.
  46. (2001). Physical basis for the temperature-based melt-index method.
  47. (2000). Pliocene-Pleistocene ice rateing history and cyclicity in the Nordic Seas during the last 3.5 Myr.
  48. (1995). Positive degree-day factors for ablation on the Greenland ice sheet studied by energy-balance modelling.
  49. (2008). Reevaluation of mid-Pliocene North Atlantic sea surface temperatures. doi
  50. (1999). Regional patterns of Pleistocene ice-rafted debris flux in the North Pacific. doi
  51. (1991). Steady-state characteristics of the Greenland ice sheet under different climates.
  52. (1996). Studies with a flexible new radiation code 1: Choosing a configuration for a large-scale model.
  53. (2006). The Daniel J. Hill et al.: Sensitivity of the Greenland Ice Sheet to Pliocene sea surface temperatures Cenozoic palaeoenvironment of the Arctic Ocean.
  54. (1996). The Greenland ice sheet – a model for its culmination and decay during and after the last glacial maximum.
  55. (1999). The impact of new land-surface physics on the GCM simulation of climate and climate sensitivity.
  56. (2000). The impact of new physical parametrizations in the Hadley Centre climate model – HadAM3. Climate Dynamics,
  57. (2002). The late Miocene to Pleistocene ice-rafting history of southeast Greenland. doi
  58. The radiative impact of a simple aerosol climatology on the Hadley Centre GCM.
  59. (1991). The record of Pliocene sea-level change at Enewetak Atoll. doi
  60. (1996). Time-step limits for stable solutions of the ice-sheet equation.
  61. (2007). to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. New York and Cambridge:
  62. (2007). to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.New York and Cambridge:

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.