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Ice front change of marine-terminating outlet glaciers in northwest and southeast Greenland during the 21st century

  • CHARLIE BUNCE (a1) (a2), J. RACHEL CARR (a1), PETER W. NIENOW (a2), NEIL ROSS (a1) and REBECCA KILLICK (a3)...

Abstract

The increasingly negative mass balance of the Greenland ice sheet (GrIS) over the last ~25 years has been associated with enhanced surface melt and increased ice loss from marine-terminating outlet glaciers. Accelerated retreat during 2000–2010 was concentrated in the southeast and northwest sectors of the ice sheet; however, there was considerable spatial and temporal variability in the timing and magnitude of retreat both within and between these regions. This behaviour has yet to be quantified and compared for all glaciers in both regions. Furthermore, it is unclear whether retreat has continued after 2010 in the northwest, and whether the documented slowdown in the southeast post-2005 has been sustained. Here, we compare spatial and temporal patterns of frontal change in the northwest and southeast GrIS, for the period 2000–2015. Our results show near-ubiquitous retreat of outlet glaciers across both regions for the study period; however, the timing and magnitude of inter-annual frontal position change is largely asynchronous. We also find that since 2010, there is continued terminus retreat in the northwest, which contrasts with considerable inter-annual variability in the southeast. Analysis of the role of glacier-specific factors demonstrates that fjord and bed geometry are important controls on the timing and magnitude of glacier retreat.

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Copyright

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

Corresponding author

Correspondence: C. Bunce <c.bunce@sms.ed.ac.uk>

References

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Amundsen, JM and 5 others (2010) Ice melange dynamics and implications for terminus stability, Jakobshavn Isbrae, Greenland. J. Geophys. Res., 115
Bondzio, JH and 6 others (2016) Modelling calving front dynamics using a level-set method: application to Jakobshavn Isbræ, west Greenland. Cryosphere, 10, 13
Carr, JR, Stokes, C and Vieli, A (2013) Influence of sea ice decline, atmospheric warming, and glacier width on marine-terminating outlet glacier behaviour in northwest Greenland at seasonal to interannual timescales. J. Geophys. Res., 118, 12101226
Carr, JR, Stokes, C and Vieli, A (2014) Recent retreat of major glacial outlets on Novaya Zemlya, Russian Arctic, influenced by fjord geometry and sea ice conditions. J. Glaciol., 60(219), 155170
Carr, JR and 9 others (2015) Basal topographic controls on rapid retreat of Humboldt Glacier, northern Greenland. J. Glaciol., 61(225)
Carr, JR, Stokes, C and Vieli, A (2017) Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic: 1992–2010. Ann. Glaciol., 58(74)
Chapuis, A and Tetzlaff, T (2014) The variability of tidewater-glacier calving: origin of event-size and interval distributions. J. Glaciol., 60(222)
Eckley, IA, Fearnhead, P and Killick, R (2011) Analysis of changepoint models. In Barber, D, Cemgil, AT and Chiappa, S, eds. Bayesian time series models. Cambridge University Press, Cambridge, 203224.
Enderlin, EM, Howat, I and Vieli, A (2013) High sensitivity of tidewater glacier outlet dynamics to shape. Cryosphere, 7
Enderlin, EM and 5 others (2014) An improved mass budget of the Greenland ice sheet. Geophys. Res. Lett., 41, 866872 (doi: 10.1002/2013GL059010)
Fettweis, X and 6 others (2013) Estimating the Greenland ice sheet surface mass balance contribution to future sea level rise using the regional atmospheric climate model, MAR. Cryosphere, 7
Goelzer, H, Robinson, A, Seroussi, H and van de Wal, RSW (2017) Recent progress in Greenland ice sheet modelling. Curr. Clim. Change Rep. Glaciol. Clim. Change, 3, 11
Gudmundsson, GH, Krug, J, Durand, G, Favier, L and Gagliardini, O (2012) The stability of grounding lines on retrograde slopes. Cryosphere, 6(6), 14971505
Hanna, E and 8 others (2008) Increased runoff from melt from the Greenland ice sheet: a response to global warming. J. Clim., 21
Hanna, E and 6 others (2012a) The influence of North Atlantic atmospheric and oceanic forcing effects on 1900–2010 Greenland summer climate and ice melt/runoff. Int. J. Climatol., 33, 862880 (doi: 10.1002/joc.3475)
Hanna, E, Mernild, SH, Cappelen, J and Steffen, K (2012b) Recent warming in Greenland in a long-term instrumental (1881–2012) climatic context: I. Evaluation of surface air temperature records. Environ. Res. Lett., 7
Hanna, E and 11 others (2013) Ice-sheet mass balance and climate change. Nature, 498, 51
Howat, IM and Eddy, A (2011) Multi-decadal retreat of Greenland's marine-terminating glaciers. J. Glaciol., 57(203)
Howat, IM, Joughin, I, Fahnestock, M, Smith, BE and Scambos, TA (2008a) Synchronous retreat and acceleration of southeast Greenland outlet glaciers 2000–06: ice dynamics and coupling to climate. J. Glaciol., 54(187)
Howat, IM, Smith, BE, Joughin, I and Scambos, TA (2008b) Rates of southeast Greenland ice volume loss from combined ICESat and ASTER observations. Geophys. Res. Lett., 35(L17505)
Jamieson, SSR and 6 others (2012) Ice-stream stability on a reverse bed slope. Nat. Geosci., 5(11), 799802
Joughin, I and 8 others (2008a) Ice-front variation and tidewater behaviour on Helheim and Kangerdlugssuaq Glaciers, Greenland. J. Geophys. Res., 113(F01004)
Joughin, I and 7 others (2008b) Continued evolution of Jakobshavn Isbrae following its rapid speedup. J. Geophys. Res., 113(F04006).
Killick, R and Eckley, IA (2014) Changepoint: an R package for changepoint analysis. J. Stat. Softw., 58(3), 19
Killick, R, Fearnhead, P and Eckley, IA (2012) Optimal detection of change points with a linear computational cost. J. Am. Stat. Assoc., 107(500), 8
Killick, R, Beaulieu, C and Taylor, S (2016) EnvCpt: Detection of Structural Changes in Climate and Environment Time Series. R package version 0.1.1
Luckman, A and 5 others (2015) Calving at tidewater glaciers vary strongly with ocean temperature. Nat. Commun., 6(8566)
McFadden, EM, Howat, IM, Joughin, I, Smith, BE and Ahn, Y (2011) Changes in the dynamics of marine terminating outlet glaciers in west Greenland (2000–2009). J. Geophys. Res., 116
Meier, M and Post, A (1987) Fast tidewater glaciers. J. Geophys. Res., 92
Miles, BWJ, Stokes, CR, Vieli, A and Cox, NJ (2013) Rapid, climate-driven changes in outlet glaciers on the Pacific coast of east Antarctica. Nature, 500(7464), 563566
Moon, T and Joughin, I (2008) Changes in ice front position on Greenland's outlet glaciers from 1992–2007. J. Geophys. Res., 113(F02022)
Moon, T, Joughin, I and Smith, B (2015) Seasonal to multiyear variability of glacier surface velocity, terminus position and sea ice/ice mélange in northwest Greenland. J. Geophys. Res. Earth Surf., 120
Morlighem, M, Rignot, E, Mouginot, J, Seroussi, H and Larour, E (2014) Deeply incised submarine glacial valleys beneath the Greenland ice sheet. Nat. Geosci., 4
Morlighem, M, Rignot, E, Mouginot, J, Seroussi, H and Larour, E (2015) IceBridge BedMachine, Version 2. NASA National Snow and Ice Data Center Distributed Active Archive Center, Boulder, CO
Morlighem, M, Rignot, E and Willis, JK (2016) Improving bed topography mapping of Greenland glaciers using NASA's Oceans Melting Greenland (OMG) data. Oceanography, 29(4), 9
Morlighem, M and 31 others (2017) BedMachine v3: complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation. Geophys. Res. Lett., 44
Murray, T and 10 others (2010) Ocean regulation hypothesis for glacier dynamics in southeast Greenland and implications for ice sheet mass changes. J. Geophys. Res., 115
Murray, T and 14 others (2015) Extensive retreat of Greenland tidewater glaciers, 2000–2010. Arct. Antarct. Alp. Res., 47(3), 20
O'Leary, M and Christoffersen, P (2013) Calving on tidewater glaciers amplified by submarine frontal melting. Cryosphere, 7(1), 119128
O'Neel, S, Pfeffer, WT, Krimmel, R and Meier, M (2005) Evolving force balance at Columbia Glacier, Alaska, during its rapid retreat. J. Geophys. Res. Earth Surf., 110(F3), n/a–n/a
Pętlicki, M, Cieply, M, Jania, JA, Prominska, A and Kinnard, C (2015) Calving of a tidewater glacier driven by melting at the waterline. J. Glaciol., 61(229).
Pfeffer, WT (2007) A simple mechanism for irreversible tidewater glacier retreat. J. Geophys. Res., 112
Porter, DF and 6 others (2014) Bathymetric control of tidewater glacier mass loss in northwest Greenland. Earth Planet. Sci. Lett., 401, 6
Post, A, O'Neel, S, Motyka, RJ and Streveler, G (2011) A complex relationship between calving glaciers and climate. Earth Space Sci. News, 92(37)
Pritchard, HD, Arthern, RJ, Vaughan, DG and Edwards, LA (2009) Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature, 461, 4
Raymond, C (1996) Shear margins in glaciers and ice sheets. J. Glaciol., 42(140), 12
Rignot, E, Braaten, D, Gogineni, SP, Krabill, W and McConnell, JR (2004) Rapid ice discharge from southeast Greenland glaciers. Geophys. Res. Lett., 31
Rignot, E, Koppes, M and Velicogna, I (2010) Rapid submarine melting of the calving faces of west Greenland glaciers. Nat. Geosci., 3
Rignot, E and 9 others (2016a) Bathymetry data reveal glaciers vulnerable to ice-ocean interaction in Uummannaq and Vaigat glacial fjords, west Greenland. Geophys. Res. Lett., 43, 7
Rignot, E and 12 others (2016b) Modeling of ocean-induced ice melt rates of five west Greenland glaciers over the past two decades. Geophys. Res. Lett., 43, 8
Schoof, C (2007) Ice sheet grounding line dynamics: steady states, stability, and hysteresis. J. Geophys. Res., 112
Seale, A, Christofferssen, P, Mugford, RI and O'Leary, M (2011) Ocean forcing of the Greenland ice sheet: calving fronts and patterns of retreat identified by automatic satellite monitoring of eastern outlet glaciers. J. Geophys. Res., 116
Slater, D, Nienow, P, Goldberg, D, Cowton, T and Sole, A (2017) A model for tidewater glacier undercutting by submarine melt. Geophys. Res. Lett., 44
Sohn, H, Jezek, KC and van der Veen, CJ (1998) Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations. Geophys. Res. Lett., 25(14), 3
Sole, A and 6 others (2011) Seasonal speedup of a Greenland marine-terminating outlet glacier forced by surface melt-induced changes in surface hydrology. J. Geophys. Res., 116
Straeno, F and 7 others (2010) Rapid circulation of warm subtropical waters in a major glacial fjord in east Greenland. Nat. Geosci., 3
Straneo, F and 8 others (2012) Characteristics of ocean waters reaching Greenland's glaciers. Ann. Glaciol., 53(60)
Straneo, F, Hamilton, GS, Stearns, LA and Sutherland, DA (2016) Connecting the Greenland ice sheet and the ocean: a case study of Helheim Glacier and Sermilik Fjord. Oceanography, 29(4), 11
Sutherland, DA and Straneo, F (2012) Estimating ocean heat transports and submarine melt rates in Sermlik Fjord, Greenland, using lowered acoustic Doppler current profiler (LADCP) velocity profiles. Ann. Glaciol., 53(60)
Todd, J and Christoffersen, P (2013) Are seasonal calving dynamics forced by buttressing from ice melange or undercutting by melting? Outcomes from full-stokes simulations of Store Glacier, west Greenland. Cryosphere, 8
Van den Broeke, M and 7 others (2016) On the recent contribution of the Greenland ice sheet to sea level change. Cryosphere, 10, 13
van den Broeke, MR and 8 others (2009) Partitioning recent Greeenland mass loss. Science, 326(984)
Van der Veen, CJ (2002) Calving glaciers. Prog. Phys. Geogr., 26(1), 96122
Warren, CR and Glasser, NF (1992) Contrasting response of south Greenland glaciers to recent climatic change. Arct. Alp. Res., 24(2)
Weertman, J (1974) Stability of the junction of an ice sheet and an ice shelf. J. Glaciol., 13(67)
Zhang, NR and Siegmund, DO (2007) A modified Bayes information criterion with applications to the analysis of comparative genomic hybridization data. Biometrics, 63(1), 10
Zwally, J and 5 others (2002) Surface melt-induced acceleration of Greenland ice-sheet flow. Science, 297(5579), 218222

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