Ice flow between the Greenland Ice Core Project and Greenland Ice Sheet Project 2 boreholes in central Greenland

Journal of Geophysical Research: Oceans

Volumn 102, Issue C12, 1997, Pages 26851-26859

  Hvidberg, C Schøtt ^a   Dahl Jensen, D ^a   Waddington, E D ^b  

^a UNIVERSITY OF COPENHAGEN   (Denmark)

^b UNIVERSITY OF WASHINGTON   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GISP2; GRIP; ICE FLOW;

GREENLAND, SUMMIT;

EID: 0031463215     PISSN: 21699275     EISSN: 21699291     Source Type: Journal    
DOI: 10.1029/97JC00268     Document Type: Article

References (45)

1. Alley, R. B., Flow law hypotheses for ice-sheet modeling, J. Glaciol., 38, 245-256, 1992.
2. Alley, R. B., and B. R. Koci, Recent warming in central Greenland?, Ann. Glaciol., 14, 6-8, 1990.
3. Alley, R. B., et al., Abrupt accumulation increase at the Younger Dryas termination in the GISP2 ice core, Nature, 362, 527-529, 1993.
4. Azuma, N., A flow law for anisotropic ice and its application to ice sheets, Earth Planet. Sci. Lett., 128, 601-614, 1994.
5. Bolzan, J. F., and M. Strobel, Accumulation rate variations around Summit, Greenland, J. Glaciol., 40, 56-66, 1994.
6. Budd, W. F., Ice flow over bedrock perturbations, J. Glaciol., 9, 29-48, 1970.
7. Castelnau, O., and P. Duval, Simulations of anisotropy and fabric development in polar ices, Ann. Glaciol., 20, 277-282, 1994.
8. Castelnau, O., T. Thorsteinsson, J. Kipfstuhl, P. Duval, and G. R. Canova, Modelling fabric development along the GRIP ice core, central Greenland, Ann. Glaciol., 23, 194-201, 1996.
9. Clausen, H. B., N. S. Gundestrup, and S. J. Johnsen, Glaciological investigations in the Crete area, central Greenland: A search for a new drill site, Ann. Glaciol, 10, 10-15, 1988.
10. Dahl-Jensen, D., Determination of the flow properties at Dye 3, South Greenland, by bore-hole-tilting measurements and perturbation modelling, J. Glaciol, 31, 92-98, 1985.
11. Dahl-Jensen, D., Steady thermo-mechanical flow along two-dimensional flow lines in large grounded ice sheets, J. Geophys. Res., 94(B8), 10, 355-10, 362, 1989a.
12. Dahl-Jensen, D., Two-dimensional thermo-mechanical modelling of flow and depth-age profiles near the ice divide in central Greenland, Ann. Glaciol, 12, 1-20, 1989b.
13. Dahl-Jensen, D., and N. S. Gundestrup, Constitutive properties of ice at Dye 3, Greenland, in The Physical Basis of Ice Sheet Modelling, Vancouver, Aug. 1987, IAHS Publ., 170, 31-43, 1987.
14. Dahl-Jensen, D., S. J. Johnsen, C. U. Hammer, H. B. Clausen, and J. Jouzel, Past accumulation rates derived from observed annual layers in the GRIP ice core from Summit, central Greenland, in Ice in the Climate System, NATO ASI Ser. I, vol. 12, edited by W. R. Peltier, pp. 517-532, Springer-Verlag, New York, 1993.
15. Dahl-Jensen, D., T. Thorsteinsson, R. Alley, and H. Shoji, Flow properties of the ice from the Greenland Ice Core Project ice core: The reason for folds? J. Geophys. Res., this issue.
16. Dansgaard, W., et al., Evidence for general instability of past climate from a 250-kyr ice-core record, Nature, 364, 218-220, 1993.
17. Ekholm, S., and K. Keller, Gravity and GPS survey on the Summit of the Greenland Ice Sheet 1991-1992, Tech. Rep. 6, Geodetic Div., Natl. Surv. and Cadastre, Copenhagen, Denmark, 1993.
18. Firestone, J., E. D. Waddington, and J. Cunningham, The potential for basal melting under Summit, Greenland, I. Glaciol., 36, 163-168, 1990.
19. Fisher, D. A., and R. M. Koerner, On the special rheological properties of ancient microparticle-laden northern hemisphere ice as derived from borehole and core measurements, J. Glaciol, 31, 92-98, 1986.
20. Glen, J. W., The creep of polycrystalline ice, Proc. R. Soc. London A, 228(1175), 519-538, 1955.
21. Grootes, P. M., M. Stuiver, J. W. C. White, S. J. Johnsen, and J. Jouzel, Comparison of oxygen isotope records from the GISP2 and GRIP Greenland ice cores, Nature, 366, 552-554, 1993.
22. Gundestrup, N. S., D. Dahl-Jensen, S. J. Johnsen, and A. Rossi, Borehole survey at dome GRIP 1991, Cold Reg. Sci. Technol., 21, 399-402, 1993.
23. Hempel, L., and R. Thyssen, Deep radio echo soundings in the vicinity of GRIP and GISP2 drill sites, Greenland, Polarforschung, 62(1), 11-16, 1993.
24. Hodge, S. M., D. L. Wright, J. A. Breadley, R. W. Jacobel, N. Skou, and B. Vaughn, Determination of the surface and bed topography in central Greenland, J. Glaciol, 36, 17-30, 1990.
25. Homann, C, and D. Möller, Strain determination on the Greenland Ice sheet, in Mass Balance and Related Topics of the Greenland Ice Sheet, edited by N. Reeh and H. Oerter, Open File Ser. 93/5, pp. 71-73, Grønlands Geol. Unders., Copenhagen, Denmark, 1993.
26. Hutter, K, Theimo-mechanically coupled ice-sheet response - Cold, polythermal, temperate, J. Glaciol., 39, 65-86, 1993.
27. Hutter, K., F. Legerer, and U. Spring, First-order stresses and deformations in glaciers and ice sheets, J. Glaciol., 27, 227-270, 1981.
28. Hvidberg, C. S., Steady state thermo-mechanical modelling of ice flow near the centre of large ice sheets with the finite element technique, Ann. Glaciol., 23, 116-123, 1996.
29. Jacobel, R. W., and S. M. Hodge, Radar internal layers from the Greenland Summit, Geophys. Res. Lett., 22(5), 587-590, 1995.
30. Johnsen, S. J., H. B. Clausen, W. Dansgaard, K. Fuhrer, N. Gun-destrup, C. U. Hammer, P. Iversen, J. Jouzel, B. Stauffer, and J. P. Steffensen, Irregular glacial interstadials recorded in a new Greenland ice core, Nature, 359, 311-313, 1992.
31. Johnsen, S. J., D. Dahl-Jensen, W. Dansgaard, and N. Gundestrup, Greenland palaeotemperatures derived from GRIP borehole temperature and ice core isotope profiles, Tellus, Ser. B, 47, 624-629, 1995.
32. Keller, K., Undersøgelse af topografien omkring GRIP-lejren ved brug af GPS og gravimetri, M.S. thesis, Univ. of Copenhagen, Copenhagen, Denmark, 1995.
33. Keller, K, N. S. Gundestrup, D. Dahl-Jensen, and C. C. Tscherning, The ice deformation and mass balance at the Summit of Greenland as determined by GPS and gravity measurements, in Mass Balance and Related Topics of the Greenland Ice Sheet, edited by F. Obleitner and O. B. Olesen, Open File Ser. 95/5, pp. 15-18, Grønlands Geol. Unders., Copenhagen, Denmark, 1995.
34. Koch, H., Height determinations along the EGIG line and in the GRIP area, in Mass Balance and Related Topics of the Greenland Ice Sheet, edited by N. Reeh and H. Oerter, Open File Ser. 93/5, pp. 68-70, Grønlands Geol. Unders., Copenhagen, Denmark, 1993.
35. Lliboutry, L., and P. Duval, Various isotropic and amsotropic ices found in glaciers and polar ice caps and their corresponding Theologies, Ann. Geophys., 3(2), 207-224, 1985.
36. Meese, D. A., A. J. Gow, P. Grootes, P. A. Mayewski, M. Ram, M. Stuiver, K. C. Taylor, E. D. Waddington, and G. A. Zielinski, The accumulation record from the GISP2 core as an indicator of climate change throughout the Holocene, Science, 266, 1680-1682, 1994.
37. Paterson, W. S. B., The Physics of Glaciers, 3rd ed., Pergamon, New York, 1994.
38. Paterson, W. S. B., and E. D. Waddington, Estimated basal ice temperatures at Crete, Greenland, throughout a glacial cycle, Cold Reg. Sci. Technol., 12, 99-102, 1986.
39. Raymond, C. F., Deformation in the vicinity of ice divides, J. Glaciol., 29, 357-373, 1983.
40. Reeh, N., A flow-line model for calculating the surface profile and the velocity, strain-rate, and stress fields in an ice sheet, J. Glaciol., 34, 46-54, 1988.
41. Schøtt, C, E. D. Waddington, and C. F. Raymond, Predicted time-scales for GISP2 and GRIP boreholes at Summit, Greenland, J. Glaciol., 38, 162-168, 1992.
42. Szidarovsky, F, ., K. Hutter, and S. Yakowitz, Computational ice-divide analysis of a cold plane ice sheet under steady state conditions, Ann. Glaciol., 12, 170-177, 1989.
43. Thorsteinsson, T., J. Kipfstuhl, and H. Miller, Textures and fabrics in the Greenland Ice Core Project ice core, J. Geophys. Res., this issue.
44. Tison, J.-L., T. Thorsteinsson, R. D. Lorrain, and J. Kipfstuhl, Origin and development of textures and fabrics in basal ice at Summit, central Greenland, Earth Planet. Sci. Lett., 125, 421-437, 1994.
45. Waddington, E. D., D. A. Fisher, R. M. Koerner, and W. S. B. Paterson, Flow near an ice divide: Analysis problems and data requirements, Ann. Glaciol., 8, 171-174, 1986.