Variations of ice bed coupling beneath and beyond ice streams: The force balance

Journal of Geophysical Research: Solid Earth

Volumn 114, Issue 1, 2009, Pages

  Hughes, Terry ^a  

^a UNIVERSITY OF MAINE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPRESSION; GLACIOLOGY; GRAVITY FIELD; ICE MARGIN; ICE SHEET; ICE STREAM; SHEAR STRESS; TOPOGRAPHY;

EID: 63049109602     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: 10.1029/2008JB005714     Document Type: Article

References (46)

1. Anandakrishnan, S., et al. (2001), The flow regime of Ice Stream C and hypotheses concerning its recent stagnation, in The West Antarctic Ice Sheet: Behavior and Environment, Antarct. Res. Ser., vol. 77, edited by R. B. Alley and R. A. Bindschadler, pp. 283-294, AGU, Washington, D. C.
2. Bader, H. (1961), The Greenland Ice Sheet, Monogr. 1-B2, 18 pp., U.S. Army Cold Reg. Sci. and Eng. Lab., Hanover, N. H.
3. Budd, W. F., et al. (197 1), Derived physical characteristics of the Antarctic Ice Sheet, Aust. Natl. Antarct. Res. Exped. (ANARE) Interim Rep., Ser. A (IV), Glaciol. Publ. 120, 178 pp., Meteorol. Dep., Univ. of Melbourne, Melbourne, Australia.
4. Christoffersen, P., and S. M. Tulaczyk (2003), Thermodynamics of basal freeze-on: Predicting basal and subglacial signatures of stopped ice streams and interstrearn ridges, Ann. Glaciol., 36, 233-243, doi:10.3189/172756403781816211.
5. Dupont, T., and R. B. Alley (2005), Assessment of the importance of ice-shelf buttressing to ice-sheet flow, Geophys. Res. Lett., 32, L04503, doi:10.1029/2004GL022024.
6. Dupont, T. K,, and R. B. Alley (2006), Role of small ice shelves in sea-level rise, Geophys. Res. Lett., 33, L09503, doi:10.1029/ 2005GL025665.
7. Engelhardt, H., and B. Kamb (1997), Basal hydraulic system of a West Antarctic ice stream: Constraints from borehole observations, J. Glaciol., 43, 207-230.
8. Glen, J. W. (1955), The creep of polycrystalline ice, Proc. R. Soc. London, Ser. A, 228, 519-538, doi:10.1098/rspa.1955.0066.
9. Haefeli, R. (1961), Contribution to the movement and the form of ice sheets in the Arctic and Antarctic, J. Glaciol., 3, 1133-1150.
10. Hindmarsh, R. C. A. (2004), A numerical comparison of approximations to the Stokes equations used in ice sheet and glacier modeling, J. Geophys. Res., 109, F01012, doi:10.1029/2003JF000065.
11. Hooke, R. L. (2005), Principles of Glacier Mechanics, 2nd ed., 429 pp., Cambridge Univ. Press, Cambridge, U.K.
12. Hughes, T. J. (1981), Numerical reconstructions of paleo ice sheets, in The Last Great Ice Sheets, edited by G. H. Denton and T. Hughes, pp. 221-261, Wiley-Interscience, New York.
13. Hughes, T. (1992), On the pulling power of ice streams, J. Glaciol., 38, 125-151.
14. Hughes, T. (1998), Ice Sheets, 343 pp., Oxford Univ. Press, New York.
15. Hughes, T. (2003), Geometrical force balance in glaciology, J. Geophys, Res., 108(B11), 2526, doi:10.1029/2003JB002557.
16. Huybrechts, P. (1990), A 3-D model for the Antarctic Ice Sheet: A sensitivity study on the glacial-interglacial contrast, Clim. Dyn., 5, 79-92.
17. Jezek, K. C. (Ed.) (1998), Early results from the first RADARSAT-1 Antarctic mapping mission, Tech. Rep. 98-02, 22 pp., Byrd Pol. Res. Cent., Ohio State Univ., Columbus.
18. Johnson, J., and J. L. Fastook (2002), Northern Hemisphere glaciation and its sensitivity to basal melt water, Quat. Int., 95-96, 65-74, doi:10.1016/S1040-6182(02)00028-9.
19. Kamb, B. (1987), Glacier surge mechanism based on linked cavity configuration of the basal water conduit system, J. Geophys. Res., 92, 9083-9100, doi:10.1029/JB092iB09p09083.
20. Kamb, B. (1991), Rheological nonlinearity and flow instability in the deforming bed mechanism of ice stream motion, J. Geophys. Res., 96, 16,585-16,595, doi:10.1029/91JB00946.
21. Kamb, B. (2001), Basal zone of the West Antarctic ice streams and its role in lubrication of their rapid motion, in The West Antarctic Ice Sheet: Behavior and Environment, Antarct. Res. Ser., vol. 77, edited by R. B. Alley and R. A. Bindschadler, pp. 157-200, AGU, Washington, D. C.
22. MacAyeal, D. R. (1989), Large-scale ice flow over a viscous basal sediment: Theory and application to Ice Stream B, Antarctica, J. Geophys. Res., 94, 4071-4087, doi:10.1029/JB094iB04p04071.
23. Marshall, S. J. (2005), Recent advance in understanding ice dynamics, Earth Planet. Sci. Lett., 240, 191-204, doi:10.1016/ j.epsl.2005.08.016.
24. Mayewski, P. A., L. D. Meeker, M. S. Twickler, S. Whitlow, Q. Yang, W. B. Lyons, and M. Prentice (1997), Major features and forcing of high-latitude northern hemisphere atmospheric circulation using a 110,000-year-long glaciochemical series, J. Geophys. Res., 102, 26,345-26,366.
25. Ng, F. S. L. (2000), Couples ice-till deformation near subglacial channels and cavities, J. Glaciol., 46, 580-598, doi:10.3189/ 172756500781832756.
26. Nye, J. F. (1951), The flow of glaciers and ice sheets as a problem in plasticity, Proc. R. Soc. London, Ser. A, 207, 554-572.
27. Nye, J. F. (1959), The motion of ice sheets and glaciers, J. Glaciol., 3, 493-507.
28. Oswald, G. K. A., and S. P. Gogineni (2008), Recovery of subglacial water extent from Greenland radar survey data, J. Glaciol., 54, 94-106, doi:10.3189/002214308784409107.
29. Pattyn, F. (2002), Transient glacier response with a higher-order numerical ice-flow model, J. Glaciol., 48, 467-477, doi:10.3189/ 172756502781831278.
30. Raymond, C. F., et al. (2001), Ice stream shear margins, in The West Antarctic Ice Sheet: Behavior and Environment, Antarct. Res. Ser., vol. 77, edited by R. B. Alley and R. A. Bindschadler, pp. 137-156, AGU, Washington, D. C.
31. Reusch, D., and T. J. Hughes (2003), Surface "waves" on Byrd Glacier, Antarct. Sci., 15, 547-555, doi:10.1017 /S0954102003001664.
32. Robin, G. (1958), Glaciology III: Seismic shooting and related investigations, Sci. Results Norw. Br Swed., Antarct. Exped. 1949-1952, 5, 111-125.
33. Schoof, C. (2007), Ice sheet grounding line dynamics: Steady states, stability, and hysteresis, J. Geophys. Res., 112, F03S28, doi:10.1029/2006JF000664.
34. Siegert, M. J., et al. (1996), An inventory of Antarctic subglacial lakes, Antarct. Sci., 8, 281-286, doi:10.1017/S0954102096000405.
35. Thomas, R. H. (1973a), The creep of ice shelves: Theory, J. Glaciol., 12, 45-53.
36. Thomas, R. H. (1973b), The creep of ice shelves: Interpretation of observed behaviour, J. Glaciol., 12, 55-70.
37. Thomas, R. H. (2004), Force-perturbation analysis of recent thinning and acceleration of Jakobshavns Isbrae,.Greenland, J. Glaciol., 50, 57-66.
38. Thomas, R. H., et al. (2004), Force-perturbation analysis of Pine Island Glacier, Antarctica, suggests cause for recent acceleration, Ann. Glaciol., 39, 133-138, doi:10.3189/172756404781814429.
39. Tulaczyk, S., W. B. Kamb, and H. F. Engelhardt (2000a), Basal mechanics of Ice Stream B, West Antarctica: 1. Till mechanics, J. Geophys. Res., 105, 463-481, doi:10.1029/1999JB900329.
40. Tulaczyk, S., W. B. Kamb, and H. F. Engelhardt (2000b), Basal mechanics of Ice Stream B, West Antarctica: 2. Undrained plastic bed model, J. Geophys. Res., 105, 483-494, doi:10.1029/1999JB900328.
41. Vance, K., and S. Ashley (2006), Calculating the floating fraction of basal ice along Byrd Glacier, Antarctica, using only the force balance, paper presented at the 13th Annual Workshop of the West Antarctic Ice Sheet Initiative (WAIS), Natl. Sci. Found., Eatonville, Wash.
42. Van der Veen, C. J. (1999), Fundamentals of Glacier Dynamics; 462 pp., A. A. Balkema, Rotterdam, Netherlands.
43. Weertman, J. (1957a), Deformation of floating ice shelves, J. Glaciol., 3, 38-42.
44. Weertman, J. (1957b), On the sliding of glaciers, J. Glaciol., 3, 33-38.
45. Weertman, J. (1972), General theory water flow at the base of a glacier or ice sheet, Rev. Geophys., 10, 287-333, doi:10.1029/ RG010i001p00287.
46. Weertman, J., and G. E. Birchfield (1982), Subglacial water flow under ice streams and West Antarctic ice sheet stability, Ann. Glaciol., 3, 316-320.