Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene

S. J. Koenig, A. M. Dolan, B. De Boer, E. J. Stone, D. J. Hill, R. M. Deconto, A. Abe-Ouchi, D. J. Lunt, David Pollard, A. Quiquet, F. Saito, J. Savage, R. Van De Wal

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change. The Pliocene warm period (between 3.264 and 3.025 Ma) saw global temperatures similar to those projected for future climates; nevertheless, Pliocene ice locations and extents are still poorly constrained. We present results from the efforts to simulate mid-Pliocene Greenland Ice Sheets by means of the international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP). We compare the performance of existing numerical ice sheet models in simulating modern control and mid-Pliocene ice sheets with a suite of sensitivity experiments guided by available proxy records. We quantify equilibrated ice sheet volume on Greenland, identifying a potential range in sea level contributions from warm Pliocene scenarios. A series of statistical measures are performed to quantify the confidence of simulations with focus on inter-model and inter-scenario differences. We find that Pliocene Greenland Ice Sheets are less sensitive to differences in ice sheet model configurations and internal physical quantities than to changes in imposed climate forcing. We conclude that Pliocene ice was most likely to be limited to the highest elevations in eastern and southern Greenland as simulated with the highest confidence and by synthesizing available regional proxies; however, the extent of those ice caps needs to be further constrained by using a range of general circulation model (GCM) climate forcings

Original languageEnglish (US)
Pages (from-to)369-381
Number of pages13
JournalClimate of the Past
Volume11
Issue number3
DOIs
StatePublished - Mar 5 2015

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ice sheet
Pliocene
climate forcing
ice
ice cap
general circulation model
sea level
climate change
climate
modeling
simulation
experiment
temperature

All Science Journal Classification (ASJC) codes

  • Global and Planetary Change
  • Stratigraphy
  • Palaeontology

Cite this

Koenig, S. J., Dolan, A. M., De Boer, B., Stone, E. J., Hill, D. J., Deconto, R. M., ... Van De Wal, R. (2015). Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene. Climate of the Past, 11(3), 369-381. https://doi.org/10.5194/cp-11-369-2015
Koenig, S. J. ; Dolan, A. M. ; De Boer, B. ; Stone, E. J. ; Hill, D. J. ; Deconto, R. M. ; Abe-Ouchi, A. ; Lunt, D. J. ; Pollard, David ; Quiquet, A. ; Saito, F. ; Savage, J. ; Van De Wal, R. / Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene. In: Climate of the Past. 2015 ; Vol. 11, No. 3. pp. 369-381.
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Koenig, SJ, Dolan, AM, De Boer, B, Stone, EJ, Hill, DJ, Deconto, RM, Abe-Ouchi, A, Lunt, DJ, Pollard, D, Quiquet, A, Saito, F, Savage, J & Van De Wal, R 2015, 'Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene', Climate of the Past, vol. 11, no. 3, pp. 369-381. https://doi.org/10.5194/cp-11-369-2015

Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene. / Koenig, S. J.; Dolan, A. M.; De Boer, B.; Stone, E. J.; Hill, D. J.; Deconto, R. M.; Abe-Ouchi, A.; Lunt, D. J.; Pollard, David; Quiquet, A.; Saito, F.; Savage, J.; Van De Wal, R.

In: Climate of the Past, Vol. 11, No. 3, 05.03.2015, p. 369-381.

Research output: Contribution to journalArticle

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AU - Deconto, R. M.

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AU - Pollard, David

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AU - Savage, J.

AU - Van De Wal, R.

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Koenig SJ, Dolan AM, De Boer B, Stone EJ, Hill DJ, Deconto RM et al. Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene. Climate of the Past. 2015 Mar 5;11(3):369-381. https://doi.org/10.5194/cp-11-369-2015