Abstract
A regional atmospheric climate model with multi-layer snow module (RACMO2) is forced at the lateral boundaries by global climate model (GCM) data to assess the future climate and surface mass balance (SMB) of the Antarctic ice sheet (AIS). Two different GCMs (ECHAM5 until 2100 and HadCM3 until 2200) and two different emission scenarios (A1B and E1) are used as forcing to capture a realistic range in future climate states. Simulated ice sheet averaged 2 m air temperature (T2m) increases (1.8–3.0 K in 2100 and 2.4–5.3 K in 2200), simultaneously and with the same magnitude as GCM simulated T2m. The SMB and its components increase in magnitude, as they are directly influenced by the temperature increase. Changes in atmospheric circulation around Antarctica play a minor role in future SMB changes. During the next two centuries, the projected increase in liquid water flux from rainfall and snowmelt, together 60–200 Gt year−1, will mostly refreeze in the snow pack, so runoff remains small (10–40 Gt year−1). Sublimation increases by 25–50 %, but remains an order of magnitude smaller than snowfall. The increase in snowfall mainly determines future changes in SMB on the AIS: 6–16 % in 2100 and 8–25 % in 2200. Without any ice dynamical response, this would result in an eustatic sea level drop of 20–43 mm in 2100 and 73–163 mm in 2200, compared to the twentieth century. Averaged over the AIS, a strong relation between \(\Updelta\)SMB and \(\Updelta\hbox{T}_{2{\rm m}}\) of 98 ± 5 Gt w.e. year−1 K−1 is found.
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References
Bengtsson L, Koumoutsaris S, Hodges K (2011) Large-scale surface mass balance of ice sheets from a comprehensive atmospheric model. Surv Geophys 32:459–474. doi:10.1007/s10712-011-9120-8
Chapman WL, Walsh JE (2007) Simulations of Arctic temperature and pressure by Global Coupled Models. J Clim 20:609–632. doi:10.1175/JCLI4026.1
Church JA et al (2011) Revisiting the Earth’s sea-level and energy budgets from 1961 to 2008. Geophys Res Lett 38(L18601). doi:10.1029/2011GL048794
Connolley WM, Bracegirdle TJ (2007), An Antarctic assessment of IPCC AR4 coupled models. Geophys Res Lett 34(L22505). doi:10.1029/2007GL031648
Davis CH, Li Y, McConnell JR, Frey MM, Hanna E (2005) Snowfall-driven growth in East Antarctic ice sheet mitigates recent sea-level rise. Science 308:1898–1901. doi:10.1126/science.1110662
Dee DP et al (2011) The ERA-Interim reanalysis: configuration and performance of the data assimilation system. Q J R Meteorol Soc 137(656):553–597. doi:10.1002/qj.828
Ettema J (2010) The present-day climate of Greenland: a study with a regional climate model. PhD thesis, Utrecht University, pp 123, (http://igitur-archive.library.uu.nl/dissertations/2010-0408-200308/uuindex.html).
Ettema J, van den Broeke MR, van Meijgaard E, van de Berg WJ, Bamber J, Box JE, Bales RC (2009) Higher surface mass balance of the Greenland ice sheet revealed by high-resolution climate modeling. Geophys Res Lett 36(L12501). doi:10.1029/2009GL038110
Franco B, Fettweis X, Erpicum M, Nicolay S (2011) Present and future climates of the Greenland ice sheet according to the IPCC AR4 models. Clim Dyn 36:1897–1918. doi:10.1007/s00382-010-0779-1
Gordon C, Cooper C, Senior CA, Banks H, Gregory JM, Johns TC, Mitchell JFB, Wood RA (2000) The simulation of SST, sea ice extents and ocean heat transports in a version of the Hadley Centre coupled model without flux adjustments. Clim Dyn 16:147–168. doi:10.1007/s003820050010
Gregory JM, Huybrechts P (2006) Ice-sheet contributions to future sea-level change. Philos Trans R Soc A 364:1709–1731. doi:10.1098/rsta.2006.1796
Held IM, Soden BJ (2006) Robust response of the hydrological cycle to global warming. J Clim 19:5686–5699. doi:10.1175/JCLI3990.1
Hellmer HH, Kauker F, Timmermann R, Determann J, Rae J (2012) Twenty-first-century warming of a large Antarctic ice-shelf cavity by a redirected coastal current. Nature 485:225–228. doi:10.1038/nature11064
IPCC (2007) Climate Change 2007: The physical science basis. Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change. Cambridge University Press, Cambridge, pp 996
Johns TC et al (2011), Climate change under aggressive mitigation: the ENSEMBLES multi-model experiment. Clim Dyn 37:1975–2003. doi:10.1007/s00382-011-1005-5
Krinner G, Magand O, Simmonds I, Genthon C, Dufresne J-L (2007) Simulated Antarctic precipitation and surface mass balance at the end of the twentieth and twenty-first centuries. Clim Dyn 28:215–230. doi:10.1007/s00382-006-0177-x
Kuipers Munneke P, van den Broeke MR, Lenaerts JTM, Flanner MG, Gardner AS, van de Berg WJ (2011) A new albedo parameterization for use in climate models over the Antarctic ice sheet. J Geophys Res 116(D05114). doi:10.1029/2010JD015113
Lenaerts JTM, Van den Broeke MR (2012) Modeling drifting snow in Antarctica with a regional climate model, part II: results. J Geophys Res 117(D05109). doi:10.1029/2010JD015419
Lenaerts JTM, van den Broeke MR, van de Berg WJ, van Meijgaard E, Kuipers Munneke P (2012a) A new, high-resolution surface mass balance map of Antarctica (1979–2010) based on regional atmospheric climate modeling. Geophys Res Lett 39(L04501). doi:10.1029/2011GL050713
Lenaerts JTM, van den Broeke MR, Scarchilli C, Agosta C (2012b) Impact of model resolution on simulated wind, drifting snow and surface mass balance in Terre Adélie, East Antarctica. J Glaciol 58(211):821–829. doi:10.3189/2012JoG12J020
Levermann A et al (2012) Projecting Antarctic ice discharge using response functions from SeaRISE ice-sheet models. Cryosphere Discuss. 6:3447–3489. doi:10.5194/tcd-6-3447-2012
Lowe JA, Hewitt CD, van Vuuren DP, Jones TC, Stehfest E, Royer J-F, van der Linden PJ (2009) New study for climate modeling, analyses, and scenarios. EOS Trans AGU 90(21):181. doi:10.1029/2009EO210001
Lythe MB, Vaughan DG, the BEDMAP Consortium (2001) BEDMAP: a new ice thickness and subglacial topographic model of Antarctica. J Geophys Res 106(B6):11335–11352. doi:10.1029/2000JB900449
Maris MNA, de Boer B, Oerlemans J (2012) A model comparison study for the Antarctic region: present and past. Clim Past 8:803–814. doi:10.5194/cp-8-803-2012
Monaghan AJ, Bromwich DH, Chapman W, Comiso JC (2008) Recent variability and trends of Antarctic near-surface temperature. J Geophys Res 113(D04105). doi:10.1029/2007JD009094
Muller WA, Roeckner E (2007) ENSO teleconnections in projections of future climate in ECHAM5/MPI-OM. Clim Dyn 31:533–549. doi:10.1007/s00382-007-0357-3
Nakicenovic N et al (2000) IPCC special report on emissions scenarios (SRES). Cambridge University Press, Cambridge
Nicholls RJ, Cazenave A (2010) Sea-level rise and its impact on coastal zones. Science 328(1517). doi:10.1126/science.1185782
Picard G, Domine F, Krinner G, Arnaud L, Lefebvre E (2012) Inhibition of the positive snow-albedo feedback by precipitation in interior Antarctica. Nat Clim Change 2:795–798. doi:10.1038/nclimate1590
Pope VD, Pamment JA, Jackson DR, Slingo A (2000) The representation of water vapor and its dependence on vertical resolution in the Hadley Centre climate model. J Clim 14:3065–3085. doi:10.1175/1520-0442(2001)014<3065:TROWVA>2.0.CO;2
Pritchard HD, Arthern RJ, Vaughan DG, Edwards LA (2009) Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature 461:971–975. doi:10.1038/nature08471
Pritchard HD, Ligtenberg SRM, Fricker HA, Vaughan DG, van den Broeke MR, Padman L (2012) Antarctic ice-sheet loss driven by basal melting of ice shelves. Nature 484:502–505. doi:10.1038/nature10968
Rignot E, Jacobs SS (2002) Rapid bottom melting widespread near Antarctic ice sheet grounding lines. Science 296(2020), doi:10.1126/science.1070942
Rignot E, Bamber JL, van den Broeke MR, Davis C, Li Y, van de Berg WJ, van Meijgaard E (2008) Recent Antarctic ice mass loss from radar interferometry and regional climate modelling. Nature Geosci 1:106–110. doi:10.1038/ngeo102
Rignot E, Velicogna I, van den Broeke MR, Monaghan A, Lenaerts JTM (2011) Acceleration of the contribution of the Greenland and Antarctic ice sheets to sea level rise. Geophys Res Lett 38(L05503). doi:10.1029/2011GL046583
Sheperd A, Ivins ER, Geruo A, IMBIE project group (2012) A reconciled estimate of ice-sheet mass balance. Science 338:1183–1189. doi:10.1126/science.1228102
Uppala SM et al (2005) The ERA-40 re-analysis. Q J R Meteorol Soc 131(612):2961–3012. doi:10.1256/qj.04.176
Van de Berg WJ, van den Broeke MR, Reijmer CH, van Meijgaard E (2006) Reassessment of the Antarctic surface mass balance using calibrated output of a regional atmospheric climate model. J Geophys Res 111(D11104). doi:10.1029/2005JD006495
Van den Broeke MR (2008) Depth and density of the Antarctic firn layer. Arct Antarct Alp Res 40(2):432–438. doi:10.1657/1523-0430(07-021)[BROEKE]2.0CO;2
Van den Broeke MR, Van Lipzig NPM (2004) Changes in Antarctic temperature, wind and precipitation in response to the Antarctic Oscillation. Ann Glaciol 39:119–126. doi:10.3189/172756404781814654
Van den Broeke MR, Bamber J, Lenaerts J, Rignot E (2011) Ice sheets and sea level: thinking outside the box. Surv Geophys. doi:10.1007/s10712-011-9137-z
Van Lipzig NPM, van Meijgaard E, Oerlemans J (2002) Temperature sensitivity of the Antarctic surface mass balance in a regional atmospheric climate model. J Clim 15:2758–2774. doi:10.1175/1520-0442(2002)015<2758:TSOTAS>2.0.CO;2
Van Meijgaard E, van Ulft LH, van de Berg WJ, Bosveld FC, van den Hurk BJJM, Lenderink G, Siebesma AP (2008) The KNMI regional atmospheric climate odel RACMO version 2.1. Royal Netherlands Meteorological Institute De Bilt, The Netherlands
Velicogna I (2009) Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE. Geophys Res Lett 36(L19503). doi:10.1029/2009GL040222
Wild M, Calanca P, Scherrer SC, Ohmura A (2003) Effects of polar ice sheets on global sea level in high-resolution greenhouse scenarios, J Geophys Res 108(D5):4165. doi:10.1029/2002JD002451
Acknowledgments
We thank two anonymous reviewers and Peter Kuipers Munneke for their extensive and valuable comments, which definitely helped to improve the quality and structure of the paper. We acknowledge the Netherlands Polar Program of NWO/ALW and the ice2sea project, funded by the European Commissions 7th Framework Programme through grant number 226375, ice2sea manuscript number 085.
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Ligtenberg, S.R.M., van de Berg, W.J., van den Broeke, M.R. et al. Future surface mass balance of the Antarctic ice sheet and its influence on sea level change, simulated by a regional atmospheric climate model. Clim Dyn 41, 867–884 (2013). https://doi.org/10.1007/s00382-013-1749-1
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DOI: https://doi.org/10.1007/s00382-013-1749-1