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The climate memory of an Arctic polythermal glacier

  • Charlotte Delcourt (a1), Brice Van Liefferinge (a1), Matt Nolan (a2) and Frank Pattyn (a1)
Abstract

Knowledge of glacier equilibrium-line altitude (ELA) changes and trends in time is essential for future predictions of glacier volumes. We present a novel method for determining trends in ELA change at McCall Glacier, Alaska, USA, over the last 50 years, based on mapping of the cold–temperate transition surface (CTS), marking the limit between cold and temperate ice of a polythermal glacier. Latent heat release from percolating meltwater and precipitation keeps the ice column temperate in the accumulation area. A change from accumulation to ablation zone reduces this heat release, leading locally to glacier ice cooling. By mapping the CTS along the whole glacier length using radio-echo sounding and employing a thermodynamic model, the timing of the cooling was determined, from which past ELAs were constructed. These are in accord with mass-balance measurements carried out on McCall Glacier since the 1950s. We show that with a warming climate, McCall Glacier tends to cool in a counter-intuitive way.

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References
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Arendt, AA, Echelmeyer, KA, Harrison, WD, Lingle, CS and Valentine, VB (2002) Rapid wastage of Alaska glaciers and their contribution to rising sea level. Science, 297(5580), 382386 (doi: 10.1126/science.1072497)
Aschwanden, A and Blatter, H (2009) Mathematical modeling and numerical simulation of polythermal glaciers. J. Geophys. Res., 114(F1), F01027 (doi: 10.1029/2008JF001028)
Björnsson, H and 6 others (1996) The thermal regime of sub-polar glaciers mapped by multi-frequency radio-echo sounding. J. Glaciol., 42(140), 2332
Blatter, H (1995) Velocity and stress fields in grounded glaciers: a simple algorithm for including deviatoric stress gradients. J. Glaciol., 41(138), 333344
Blatter, H and Hutter, K (1991) Polythermal conditions in Arctic glaciers. J. Glaciol., 37(126), 261269
Cassano, EN, Cassano, JJ and Nolan, M (2011) Synoptic weather pattern controls on temperature in Alaska. J. Geophys. Res., 116(D11), D11108 (doi: 10.1029/2010JD015341)
Delcourt, C, Pattyn, F and Nolan, M (2008) Modelling historical and recent mass loss of McCall Glacier, Alaska, USA. Cryosphere, 2(1), 2331 (doi: 10.5194/tc-2-23-2008)
Durand, G, Gagliardini, O, Zwinger, T, Le Meur, E and Hindmarsh, RCA (2009) Full Stokes modeling of marine ice sheets: influence of the grid size. Ann. Glaciol., 50(52), 109114 (doi: 10.3189/172756409789624283)
Eisen, O, Bauder, A, Lüthi, M, Riesen, P and Funk, M (2009) Deducing the thermal structure in the tongue of Gornergletscher, Switzerland, from radar surveys and borehole measurements. Ann. Glaciol., 50(51), 6370 (doi: 10.3189/172756409789097612)
Gardner, AS and 8 others (2011) Sharply increased mass loss from glaciers and ice caps in the Canadian Arctic Archipelago. Nature, 473(7347), 357360 (doi: 10.1038/nature10089)
Gilbert, A, Wagnon, P, Vincent, C, Ginot, P and Funk, M (2010) Atmospheric warming at a high-elevation tropical site revealed by englacial temperatures at Illimani, Bolivia (6340m above sea level, 16°S, 67°W). J. Geophys. Res., 115(D10), D10109 (doi: 10.1029/2009JD012961)
Gusmeroli, A, Jansson, P, Pettersson, R and Murray, T (2012) Twenty years of cold surface layer thinning at Storglaciären, sub-Arctic Sweden, 1989–2009. J. Glaciol., 58(207), 310 (doi: 10.3189/2012JoG11J018)
Hartmann, B and Wendler, G (2005) The significance of the 1976 Pacific climate shift in the climatology of Alaska. J. Climate, 18(22), 48244839 (doi: 10.1175/JCLI3532.1)
Hutter, K (1983) Theoretical glaciology; material science of ice and the mechanics of glaciers and ice sheets. D Reidel, Dordrecht/Terra Scientific, Tokyo.
Klok, EJ, Nolan, M and Van den Broeke, MR (2005) Analysis of meteorological data and the surface energy balance of McCall Glacier, Alaska, USA. J. Glaciol., 51(174), 451461 (doi: 10.3189/172756505781829241)
Meier, MF and Dyurgerov, MB (2002) How Alaska affects the world. Science, 297(5580), 350351 (doi: 10.1126/science.1073591)
Narod, BB and Clarke, GKC (1994) Miniature high-power impulse transmitter for radio-echo sounding. J. Glaciol., 40(134), 190194
Nolan, M, Arendt, A, Rabus, B and Hinzman, L (2005) Volume change of McCall Glacier, Arctic Alaska, USA, 1956–2003. Ann. Glaciol., 42, 409416 (doi: 10.3189/172756405781812943)
Orvig, S and Mason, RW (1963) Ice temperatures and heat flux: McCall Glacier, Alaska. IASH Publ. 61 (General Assembly of Berkeley 1963 – Snow and Ice), 181188
Paterson, WSB (1994) The physics of glaciers, 3rd edn. Elsevier, Oxford
Pattyn, F (2002) Transient glacier response with a higher-order numerical ice-flow model. J. Glaciol., 48(162), 467477 (doi: 10.3189/172756502781831278)
Pattyn, F (2003) A new three-dimensional higher-order thermomechanical ice-sheet model: basic sensitivity, ice stream development, and ice flow across subglacial lakes. J. Geophys. Res., 108(B8), 2382 (doi: 10.1029/2002JB002329)
Pattyn, F, Nolan, M, Rabus, B and Takahashi, S (2005) Localized basal motion of a polythermal Arctic glacier: McCall Glacier, Alaska, USA. Ann. Glaciol., 40, 4751 (doi: 10.3189/172756405781813537)
Pattyn, F, Delcourt, C, Samyn, D, De Smedt, B and Nolan, M (2009) Bed properties and hydrological conditions underneath McCall Glacier, Alaska, USA. Ann. Glaciol., 50(51), 8084 (doi: 10.3189/172756409789097559)
Pettersson, R, Jansson, P and Holmlund, P (2003) Cold surface layer thinning on Storglaciären, Sweden, observed by repeated ground penetrating radar surveys. J. Geophys. Res., 108(F1), 6004 (doi: 10.1029/2003JF000024)
Rabus, BT and Echelmeyer, KA (1997) The flow of a polythermal glacier: McCall Glacier, Alaska, USA. J. Glaciol., 43(145), 522536
Rabus, BT and Echelmeyer, KA (1998) The mass balance of McCall Glacier, Brooks Range, Alaska, USA; its regional relevance and implications for climate change in the Arctic. J. Glaciol., 44(147), 333351
Rabus, B, Echelmeyer, K, Trabant, D and Benson, C (1995) Recent changes of McCall Glacier, Alaska. Ann. Glaciol., 21, 231239
Radić, V and Hock, R (2011) Regionally differentiated contribution of mountain glaciers and ice caps to future sea-level rise. Nature Geosci., 4(2), 9194 (doi: 10.1038/ngeo1052)
Reeh, N (1988) A flow-line model for calculating the surface profile and the velocity, strain-rate, and stress fields in an ice sheet. J. Glaciol., 34(116), 4654
Rippin, DM, Carrivick, JL and Williams, C (2011) Evidence towards a thermal lag in the response of Kårsaglaciären, northern Sweden, to climate change. J. Glaciol., 57(205), 895903 (doi: 10.3189/002214311798043672)
Schneider, T and Jansson, P (2004) Internal accumulation in firn and its significance for the mass balance of Storglaciären, Sweden. J. Glaciol., 50(168), 2534 (doi: 10.3189/172756504781830277)
Stafford, J, Wendler, G and Curtis, J (2000) Temperature and precipitation of Alaska: 50 year trend analysis. Theor. Appl. Climatol., 67(1–2), 3344 (doi: 10.1007/s007040070014)
Trabant, DC and Mayo, LR (1985) Estimation and effects of internal accumulation on five glaciers in Alaska. Ann. Glaciol., 6, 113117
Trenberth, KE and 11 others (2007) Observations: surface and atmospheric climate change. In Solomon, S and 7 others eds. 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, 235336
Vincent, C, Le Meur, E, Six, D, Possenti, P, Lefebvre, E and Funk, M (2007) Climate warming revealed by englacial temperatures at Col du Dôme (4250 m, Mont Blanc area). Geophys. Res. Lett., 34(16), L16502 (doi: 10.1029/2007GL029933)
Wakahama, G, Kuroiwa, D, Hasemi, T and Benson, CS (1976) Field observations and experimental and theoretical studies on the superimposed ice of McCall Glacier, Alaska. J. Glaciol., 16(74), 135149
Wright, AP, Wadham, JL, Siegert, MJ, Luckman, A, Kohler, J and Nuttall, A-M (2007) Modeling the refreezing of meltwater as superimposed ice on a high Arctic glacier: a comparison of approaches. J. Geophys. Res., 112(F4), F04016 (doi: 10.1029/2007JF000818)
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Journal of Glaciology
  • ISSN: 0022-1430
  • EISSN: 1727-5652
  • URL: /core/journals/journal-of-glaciology
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