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Modeling 5 years of subglacial lake activity in the MacAyeal Ice Stream (Antarctica) catchment through assimilation of ICESat laser altimetry

  • Sasha P. Carter (a1), Helen A. Fricker (a1), Donald D. Blankenship (a2), Jesse V. Johnson (a3), William H. Lipscomb (a4), Stephen F. Price (a4) and Duncan A. Young (a2)...

Abstract

Subglacial lakes beneath Antarctica’s fast-moving ice streams are known to undergo ∼1 km3 volume changes on annual timescales. Focusing on the MacAyeal Ice Stream (MacIS) lake system, we create a simple model for the response of subglacial water distribution to lake discharge events through assimilation of lake volume changes estimated from Ice, Cloud and land Elevation Satellite (ICESat) laser altimetry. We construct a steady-state water transport model in which known subglacial lakes are treated as either sinks or sources depending on the ICESat-derived filling or draining rates. The modeled volume change rates of five large subglacial lakes in the downstream portion of MacIS are shown to be consistent with observed filling rates if the dynamics of all upstream lakes are considered. However, the variable filling rate of the northernmost lake suggests the presence of an undetected lake of similar size upstream. Overall, we show that, for this fast-flowing ice stream, most subglacial lakes receive >90% of their water from distant distributed sources throughout the catchment, and we confirm that water is transported from regions of net basal melt to regions of net basal freezing. Our study provides a geophysically based means of validating subglacial water models in Antarctica and is a potential way to parameterize subglacial lake discharge events in large-scale ice-sheet models where adequate data are available.

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References

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Alley, R.B. 1989. Water-pressure coupling of sliding and bed deformation: I. Water system. J. Glaciol, 35(119), 108118.
Alley, R.B. 1996. Towards a hydrological model for computerized ice-sheet simulations. Hydrol. Process, 10(4), 649660.
Anandakrishnan, S. and Alley, R.B.. 1997. Stagnation of Ice Stream C, West Antarctica by water piracy. Geophys. Res. Lett, 24(3), 265268.
Arnold, N. and Sharp, M.. 2002. Flow variability in the Scandinavian ice sheet: modelling the coupling between ice sheet flow and hydrology. Quat. Sci. Rev, 21(4–6), 485502.
Bell, R.E. 2008. The role of subglacial water in ice-sheet mass balance. Nature Geosci, 1(5), 297304.
Bell, R.E., Studinger, M., Shuman, C.A., Fahnestock, M.A. and Joughin, . 2007. Large subglacial lakes in East Antarctica at the onset of fast-flowing ice streams. Nature, 445(7130), 904907.
Bentley, C.R. and Chang, F.K.. 1971. Geophysical exploration in Marie Byrd Land, Antarctica. In Crary, A.P., ed. Antarctic snow and ice studies II. Washington, DC, American Geophysical Union, 138. (Antarctic Research Series 16.)
Bentley, C.R. and Ostenso, N.A.. 1961. Glacial and subglacial topography of West Antarctica. J. Glaciol, 3(29), 882911.
Bindschadler, R. and Choi, H.. 2007. Increased water storage at ice-stream onsets: a critical mechanism? J. Glaciol, 53(181), 163171.
Blankenship, D.D., Bell, R.E., Hodge, S.M., Brozena, J.M., Behrendt, J.C. and Finn, C.A.. 1993. Active volcanism beneath the West Antarctic ice sheet and implications for ice-sheet stability. Nature, 361(6412), 526529.
Blankenship, D.D. and 9 others. 2001.Geologic controls on the initiation of rapid basal motion for West Antarctic ice streams: a geophysical perspective involving new airborne radar sounding and laser altimetry results. In Alley, R.B. and Bindschadler, R.A., eds. The West Antarctic ice sheet: behavior and environment. Washington, DC, American Geophysical Union, 105121. (Antarctic Research Series 77.)
Carter, S.P., Blankenship, D.D., Peters, M.E., Young, D.A., Holt, J.W. and Morse, D.L.. 2007. Radar-based subglacial lake classification in Antarctica. Geochem, Geophys., Geosyst, 8(3), Q03016. (10.1029/2006GC001408.)
Carter, S.P., Blankenship, D.D., Young, D.A. and Holt, J.W.. 2009a. Using radar-sounding data to identify the distribution and sources of subglacial water: application to Dome C, East Antarctica. J. Glaciol, 55(194), 10251040.
Carter, S.P., Blankenship, D.D., Young, D.A., Peters, M.E., Holt, J.W. and Siegert, M.J.. 2009b. Dynamic distributed drainage implied by the flow evolution of the 1996–1998 Adventure Trench subglacial outburst flood. Earth Planet. Sci. Lett, 283(1–4), 2437.
Creyts, T.T. and Clarke, G.K.C.. 2010. Hydraulics of subglacial supercooling: theory and simulations for clear water flows. J. Geophys. Res, 115(F3), F03021. (10.1029/2009JF001417.)
Creyts, T.T. and Schoof, C.G.. 2009. Drainage through subglacial water sheets. J. Geophys. Res, 114(F4), F04008. (10.1029/2008JF001215.)
Drewry, D.J. 1975. Radio echo sounding map of Antarctica (∼90°E–180°). Polar Rec, 17(109), 359374.
Dupain-Triel, J.L. 1791. La France considérée dans les différentes hauteurs de ses plaines: ouvrage spécialement destiné à l’instruction de la jeunesse. Paris, Hérault.
Engelhardt, H. and Kamb, B.. 1997. Basal hydraulic system of a West Antarctic ice stream: constraints from borehole observations. J. Glaciol, 43(144), 207230.
Evatt, G.W. and Fowler, A.C.. 2007. Cauldron subsidence and subglacial floods. Ann. Glaciol, 45, 163168.
Evatt, G.W., Fowler, A.C., Clark, C.D. and Hulton, N.R.J.. 2006. Subglacial floods beneath ice sheets. Philos. Trans. R. Soc. London, Ser. A, 364(1844), 17691794.
Flowers, G.E. and Clarke, G.K.C.. 2002. A multicomponent coupled model of glacier hydrology: 1. Theory and synthetic examples. J. Geophys. Res, 107(B11), 2287. (10.1029/2001JB001122.)
Fowler, A.C. 1986. Sub-temperate basal sliding. J. Glaciol, 32(110), 35.
Fowler, A.C. 2009. Dynamics of subglacial floods. Proc. R. Soc. London, Ser. A, 465(2106), 18091828.
Fricker, H.A. and Scambos, T.. 2009. Connected subglacial lake activity on lower Mercer and Whillans Ice Streams, West Antarctica, 2003–2008. J. Glaciol, 55(190), 303315.
Fricker, H.A., Scambos, T., Bindschadler, R. and Padman, L.. 2007. An active subglacial water system in West Antarctica mapped from space. Science, 315(5818), 15441548.
Fricker, H.A., Scambos, T., Carter, S., Davis, C., Haran, T. and Joughin, I.. 2010. Synthesizing multiple remote-sensing techniques for subglacial hydrologic mapping: application to a lake system beneath MacAyeal Ice Stream, West Antarctica. J. Glaciol, 56(196), 187199.
Gray, L., Joughin, I., Tulaczyk, S., Spikes, V.B., Bindschadler, R. and Jezek, K.. 2005. Evidence for subglacial water transport in the West Antarctic Ice Sheet through three-dimensional satellite radar interferometry. Geophys. Res. Lett, 32(3), L03501. (10.1029/2004GL021387)
Haran, T.M. and Scambos, T.A.. 2007. Enhancing a RADARSAT/ ICESat digital elevation model of West Antarctica using MODIS imagery. [Abstr. C51B-0386.] Eos, 88(52), Fall Meet. Suppl.
Holt, J.W., Blankenship, D.D., Morse, D.L., Young, D.A., Peters, M.E., Kempf, S.D., Richter, T.G., Vaughan, D.G. and Corr, H.F.J.. 2006. New boundary conditions for the West Antarctic Ice Sheet: subglacial topography of the Thwaites and Smith glacier catchments. Geophys. Res. Lett, 33(9) (10.1029/2005gl025561).
Iken, A. and Bindschadler, R.A.. 1986. Combined measurements of subglacial water pressure and surface velocity of Findelengletscher, Switzerland: conclusions about drainage system and sliding mechanism. J. Glaciol, 32(110), 101119.
Johnson, J. and Fastook, J.. 2002. Northern Hemisphere glaciation and its sensitivity to basal melt water. Quat. Int, 95–6, 6574.
Joughin, I., Tulaczyk, S., Bindschadler, R.A. and Price, S.. 2002. Changes in West Antarctic ice stream velocities: observation and analysis. J. Geophys. Res, 107(B11), 2289. (10.1029/ 2001J B001029.)
Joughin, I., Tulaczyk, S., MacAyeal, D. and Engelhardt, H.. 2004. Melting and freezing beneath the Ross ice streams, Antarctica. J. Glaciol, 50(168), 96108.
Kamb, B. 1987. Glacier surge mechanism based on linked cavity configuration of the basal water conduit system. J. Geophys. Res, 92(B9), 90839100.
Le Brocq, A.M., Payne, A.J. and Siegert, M.J.. 2006. West Antarctic balance calculations: impact of flux-routing algorithm, smoothing algorithm and topography. Comput. Geosci, 32(10), 1780 1795.
Le Brocq, A.M., Payne, A.J., Siegert, M.J. and Alley, R.B.. 2009. A subglacial water-flow model for West Antarctica. J. Glaciol, 55(193), 879888.
Llubes, M., Lanseau, C. and Rémy, F.. 2006. Relations between basal condition, subglacial hydrological networks and geothermal flux in Antarctica. Earth Planet. Sci. Lett, 241(3–4), 655662.
Lythe, M.B., Vaughan, D.G. and BEDMAP consortium. 2001. BEDMAP: a new ice thickness and subglacial topographic model of Antarctica. J. Geophys. Res, 106(B6), 11,33511,351.
MacAyeal, D.R., Bindschadler, R.A. and Scambos, T.A.. 1995. Basal friction of Ice Stream E, West Antarctica. J. Glaciol, 41(138), 247262.
Parizek, B.R., Alley, R.B., Anandakrishnan, S. and Conway, H.. 2002. Sub-catchment melt and long-term stability of Ice Stream D, West Antarctica. Geophys. Res. Lett, 29(8), 551554.
Pimentel, S. and Flowers, G.E.. 2011. A numerical study of hydrologically driven glacier dynamics and subglacial flooding. Proc. R. Soc. London, Ser. A, 467(2126), 537558.
Pritchard, H.D., Arthern, R.J., Vaughan, D.G. and Edwards, L.A.. 2009. Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature, 461(7266), 971975.
Quinn, P.F., Ostendorf, B., Beven, K. and Tenhunen, J.. 1998. Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment. Hydrol. Earth Syst. Sci, 2(1), 5164.
Rignot, E. and 6 others. 2008. Recent Antarctic ice mass loss from radar interferometry and regional climate modelling. Nature Geosci, 1(2), 106110.
Roberts, M.J. 2005. Jökulhlaups: a reassessment of floodwater flow through glaciers. Rev. Geophys, 43(1), RG1002. (10.1029/2003RG000147.)
Saunders, W. 2000. Preparation of DEMs for use in environmental modeling analysis. In Maidment, D. and Djokic, D., eds. Hydrologic and hydraulic modeling support with geographic information systems. Redlands, CA, Environmental Systems Research Institute.
Schoof, C. 2010. Ice-sheet acceleration driven by melt supply variability. Nature, 468(7325), 803806.
Sergienko, O.V. and Hulbe, C.L.. 2011. ‘Sticky spots’ and subglacial lakes under ice streams of the Siple Coast, Antarctica. Ann. Glaciol, 52(58), 1822.
Sergienko, O.V., MacAyeal, D.R. and Bindschadler, R.A.. 2007. Causes of sudden, short-term changes in ice-stream surface elevation. Geophys. Res. Lett., 34(22), L22503. (10.1029/2007GL031775.)
Shreve, R.L. 1972. Movement of water in glaciers. J. Glaciol, 11(62), 205214.
Siegert, M.J. 2000. Antarctic subglacial lakes. Earth-Sci. Rev, 50(1–2), 2950.
Siegert, M.J., Carter, S., Tabacco, I., Popov, S. and Blankenship, D.D.. 2005. A revised inventory of Antarctic subglacial lakes. Antarct. Sci, 17(3), 453460.
Siegert, M.J., Le Brocq, A. and Payne, A.J.. 2007. Hydrological connections between Antarctic subglacial lakes, the flow of water beneath the East Antarctic Ice Sheet and implications of sedimentary processes. In Hambrey, M.J., Christoffersen, P., Glasser, N.F. and Hubbard, B., eds. Glacial sedimentary processes and products. Malden, MA, Blackwell Publishing, 310. (International Association of Sedimentologists Special Publication 39.)
Smith, B.E., Fricker, H.A., Joughin, I.R. and Tulaczyk, S.. 2009. An inventory of active subglacial lakes in Antarctica detected by ICESat (2003–2008). J. Glaciol, 55(192), 573595.
Stearns, L.A., Smith, B.E. and Hamilton, G.S.. 2008. Increased flow speed on a large East Antarctic outlet glacier caused by subglacial floods. Nature Geosci, 1(12), 827831.
Stokes, C.R., Clark, C.D., Lian, O.B. and Tulaczyk, S.. 2007. Ice stream sticky spots: a review of their identification and influence beneath contemporary and palaeo-ice streams. Earth-Sci. Rev, 81(3–4), 217249.
Tikku, A.A., Bell, R.E., Studinger, M., Clarke, G.K.C., Tabacco, I. and Ferraccioli, F.. 2005. Influx of meltwater to subglacial Lake Concordia, East Antarctica. J. Glaciol, 51(172), 96104.
Tulaczyk, S.M., Kamb, B. and Engelhardt, H.F.. 2000. Basal mechanics of Ice Stream B, West Antarctica. II. Undrainedplastic-bed model. J. Geophys. Res, 105(B1), 483494.
Vogel, S.W. and Tulaczyk, S.. 2006. Ice-dynamical constraints on the existence and impact of subglacial volcanism on West Antarctic ice sheet stability. Geophys. Res. Lett, 33(23), L23502. (10.1029/2006G L02 7345.)
Walder, J.S. and Fowler, A.. 1994. Channelized subglacial drainage over a deformable bed. J. Glaciol, 40(134), 315.
Weertman, J. 1972. General theory of water flow at the base of a glacier or ice sheet. Rev. Geophys. Space Phys, 10(1), 287333.
Winberry, J.P., Anandakrishnan, S., Alley, R.B., Bindschadler, R.A. and King, M.A.. 2009. Basal mechanics of ice streams: insights from the stick–slip motion of Whillans Ice Stream, West Antarctica. J. Geophys. Res, 114(F1), F01016. (10.1029/2008JF001035.)
Wingham, D.J., Shepherd, A., Muir, A. and Marshall, G.J.. 2006a. Mass balance of the Antarctic ice sheet. Philos. Trans. R. Soc. London, Ser. A, 364(1844), 16271635.
Wingham, D.J., Siegert, M.J., Shepherd, A. and Muir, A.S.. 2006b. Rapid discharge connects Antarctic subglacial lakes. Nature, 440(7087), 10331036.
Wright, A.P., Siegert, M.J., Le Brocq, A.M. and Gore, D.B.. 2008. High sensitivity of subglacial hydrological pathways in Antarctica to small ice-sheet changes. Geophys. Res. Lett, 35(17), L17504. (10.1029/2008GL034937.)

Modeling 5 years of subglacial lake activity in the MacAyeal Ice Stream (Antarctica) catchment through assimilation of ICESat laser altimetry

  • Sasha P. Carter (a1), Helen A. Fricker (a1), Donald D. Blankenship (a2), Jesse V. Johnson (a3), William H. Lipscomb (a4), Stephen F. Price (a4) and Duncan A. Young (a2)...

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