Potential sea-level rise from Antarctic ice-sheet instability constrained by observations

Nature

Volumn 528, Issue 7580, 2015, Pages 115-118

  Ritz, Catherine ^a,b   Edwards, Tamsin L ^c,d   Durand, Gaël ^a,b   Payne, Antony J ^d   Peyaud, Vincent ^a,b   Hindmarsh, Richard C A ^e  

^a LABORATOIRE DE GLACIOLOGIE ET GÉOPHYSIQUE DE L ENVIRONNEMENT   (France)

^b UNIV GRENOBLE ALPES   (France)

^c OPEN UNIVERSITY   (United Kingdom)

^d UNIVERSITY OF BRISTOL   (United Kingdom)

^e BRITISH ANTARCTIC SURVEY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ICE; SEA WATER;

CALIBRATION; GLOBAL CHANGE; GROUNDING LINE; ICE SHEET; NUMERICAL MODEL; PARAMETERIZATION; RISK ASSESSMENT; SEA LEVEL CHANGE; SPATIAL RESOLUTION; TOPOGRAPHY; VULNERABILITY;

ANTARCTICA; ARTICLE; CLIMATE; ELECTRIC POTENTIAL; FRICTION; ICE SHEET; MARINE ENVIRONMENT; MARINE ICE SHEET INSTABILITY; NONLINEAR SYSTEM; OBSERVATIONAL STUDY; PRIORITY JOURNAL; RISK ASSESSMENT; SEA LEVEL; SEA LEVEL RISE; THEORETICAL STUDY; BAYES THEOREM; CALIBRATION; GREENHOUSE EFFECT; ICE COVER; OBSERVATION; SEA; STATISTICS AND NUMERICAL DATA; THEORETICAL MODEL;

AMUNDSEN BASIN; ANTARCTIC ICE SHEET; ANTARCTICA; ARCTIC OCEAN;

ANTARCTIC REGIONS; BAYES THEOREM; CALIBRATION; GLOBAL WARMING; ICE COVER; MODELS, THEORETICAL; OBSERVATION; OCEANS AND SEAS; SEAWATER;

EID: 84949232624     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature16147     Document Type: Article

References (24)

1. Schoof, C. Ice sheet grounding line dynamics: steady states, stability, and hysteresis. J. Geophys. Res. 112, F03S28 (2007).
2. Favier, L. et al. Retreat of Pine Island Glacier controlled by marine ice-sheet instability. Nature Clim. Chang. 5, 1-5 (2014).
3. Joughin, I., Smith, B. E. & Medley, B. Marine ice sheet collapse potentially under way for the Thwaites Glacier Basin, West Antarctica. Science 344, 735-738 (2014).
4. Rignot, E., Mouginot, J., Morlighem, M., Seroussi, H. & Scheuchl, B. Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011. Geophys. Res. Lett. 41, 3502-3509 (2014).
5. Mengel, M. & Levermann, A. Ice plug prevents irreversible discharge from East Antarctica. Nature Clim. Chang. 4, 451-455 (2014).
6. Hellmer, H. H., Kauker, F., Timmermann, R., Determann, J. & Rae, J. Twenty-firstcentury warming of a large Antarctic ice-shelf cavity by a redirected coastal current. Nature 485, 225-228 (2012).
7. Kuipers Munneke, P., Ligtenberg, S. R. M., Van den Broeke, M. R. & Vaughan, D. G. Firn air depletion as a precursor of Antarctic ice-shelf collapse. J. Glaciol. 60, 205-214 (2014).
8. Khazendar, A., Schodlok, M. P., Fenty, I., Ligtenberg, S. R. M., Rignot, E. & Van Den Broeke, M. R. Observed thinning of Totten Glacier is linked to coastal polynya variability. Nature Commun. 4, 2857 (2013).
9. Intergovernmental Panel on Climate Change. Working Group I Contribution to the IPCC Fifth Assessment Report Climate Change 2013: The Physical Science Basis (Cambridge Univ. Press, 2013).
10. Cornford, S. L. et al. Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate. Cryosphere 9, 1579-1600 (2015).
11. Levermann, A. et al. Projecting Antarctic ice discharge using response functions from SeaRISE ice-sheet models. Earth Syst. Dynam. 5, 271-293 (2014).
12. Gudmundsson, G. H., Krug, J., Durand, G., Favier, L. & Gagliardini, O. The stability of grounding lines on retrograde slopes. Cryosphere 6, 1497-1505 (2012).
13. Joughin, I. et al. Basal conditions for Pine Island and Thwaites Glaciers, West Antarctica, determined using satellite and airborne data. J. Glaciol. 55, 245-257 (2009).
14. Joughin, I., Smith, B. E. & Holland, D. M. Sensitivity of 21st century sea level to ocean-induced thinning of Pine Island Glacier, Antarctica. Geophys. Res. Lett. 37, L20502 (2010).
15. Ritz, C., Rommeleare, V. & Dumas, C. Modeling the evolution of Antarctic ice sheet over the last 420,000 years: implications for altitude changes in the Vostok region. J. Geophys. Res. 106, 31943-31964 (2001).
16. Pritchard, H. D., Arthern, R. J., Vaughan, D. G. & Edwards, L. A. Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature 461, 971-975 (2009).
17. Park, J. W. et al. Sustained retreat of the Pine Island Glacier. Geophys. Res. Lett. 40, 2137-2142 (2013).
18. Timmermann, R. & Hellmer, H. H. Southern Ocean warming and increased ice shelf basal melting in the twenty-first and twenty-second centuries based on coupled ice-ocean finite-element modelling. Ocean Dyn. 63, 1011-1026 (2013).
19. Ross, N. et al. Steep reverse bed slope at the grounding line of the Weddell Sea sector in West Antarctica. Nature Geosci. 5, 393-396 (2012).
20. Little, C. M., Oppenheimer, M. & Urban, N. M. Upper bounds on twenty-firstcentury Antarctic ice loss assessed using a probabilistic framework. Nature Clim. Chang. 3, 654-659 (2013).
21. Katsman, C. A. et al. Exploring high-end scenarios for local sea level rise to develop flood protection strategies for a low-lying delta - the Netherlands as an example. Clim. Change 109, 617-645 (2011).
22. Bamber, J. L. & Aspinall, W. P. An expert judgement assessment of future sea level rise from the ice sheets. Nature Clim. Chang. 3, 424-427 (2013).
23. Pollard, D., Deconto, R. M. & Alley, R. B. Potential Antarctic Ice Sheet retreat driven by hydrofracturing and ice cliff failure. Earth Planet. Sci. Lett. 412, 112-121 (2015).
24. Le Brocq, A. M., Payne, A. J. & Vieli, A. An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1). Earth Syst. Sci. Data 2, 247-260 (2010).