Geotechnical Engineering, University of Colorado at Boulder

Professor Pfeffer

Selected Publications

Pfeffer, W.T., J.B. Cohn, M.F. Meier, and R. Krimmel, Kinematics of retreat of Columbia Glacier, Alaska, 1997-1999. Submitted, Journal of Geophysical Research.
Amadei, B., W.T. Pfeffer, W.Z. Savage, A mathematical model for flow of non- newtonian fluids in non-homogeneous fractures. In review, International Journal of Rock Mechanics
Harper, J.T., N. F. Humphrey, , W.T. Pfeffer, S. V. Huzurbazar, D.B. Bahr, and B.C. Welch, Spatial variability in the flow of a valley glacier: deformation of a large array of boreholes: Journal of Geophysical Research, Solid Earth, v. 106, n. B5, p. 8547-8562. 2001.
Pfeffer, W.T., Ice dynamics modelling of the Hudson Strait region at late glacial time; in Marine Geology of Hudson Strait and Ungava Bay, Eastern Arctic Canada: Late Quaternary Sediments, Depositional Environments, and late Glacial-Deglacial History Derived from Marine and Terrestrial Studies, (ed.) B. MacLean. Geological Survey of Canada, Bulletin 566. 2001.
Pfeffer, W.T., J.Cohn, M.F. Meier, and R.M. Krimmel, Alaskan glacier beats a rapid retreat. EOS V. 81 No. 48, 28 November, 2000
Pfeffer, W.T., N.F. Humphrey, B. Amadei, J. Harper, J. Wegmann, 'In-situ stress tensor measured in an Alaska Glacier', Annals of Glaciology, Vol.31, pp. 229-235. 2000.
Kaplan, M., W.T. Pfeffer, C. Sassolas, and G.H. Miller, Numerical modeling of the Laurentide Ice Sheet in the Baffin Island region: The role of a Cumberland Sound ice stream, Canadian Journal of Earth Sciences (36) 1315-1326, 1999.
Konrad, S.K., N.F. Humphrey, E.J. Steig, D.H. Clark, N. Potter Jr., and W.T. Pfeffer, Rock glacier dynamics and paleoclimatic implications, Geology 27(12), 1131-1134, 1999.
Harper, J.T., N.F. Humphrey, and W.T. Pfeffer, Three-dimensional deformation measured in an Alaskan glacier, Science (281), 1340-1342, 1998.
Harper, J.T., N.F. Humphrey, and W.T. Pfeffer, Crevasse patterns and the strain rate tensor: A high-resolution comparison, Journal of Glaciology (146), 68-76, 1998.
Welch, B.C., W.T. Pfeffer, J.T. Harper, N.F. Humphrey, Mapping subglacial surfaces below temperate valley glaciers using 3-dimensional radio-echo sounding techniques, Journal of Glaciology, (146), 164-170, 1998.
Pfeffer, W.T., and N.F. Humphrey, Formation of ice layers by infiltration and refreezing of meltwater, Annals of Glaciology (26), 83-91, 1998
Bahr, D.B., W.T. Pfeffer, C. Sassolas, and M.F. Meier, Response time of glaciers as a function of size and mass balance: I. Theory, Journal of Geophysical Research 103(B5), 9777-9782, 1998.
Pan, E., Sassolas, C. Amadei, B., and Pfeffer, W.T., 1997: A 3-D boundary element formulation of visocelastic media with gravity. Computational Mechanics 19(1997), pp. 308-316.
Dwyer, J., Amadei, B., Lin, C.T., and Pfeffer, W.T., 1997: Edge function analysis of glacier mechanics problems. Int. J. Solids Structures, 34(1997), pp. 991-1005.
Pfeffer, W.T., Dyurgerov, M., Kaplan, M., Dwyer, J., Sassolas, C., Jennings, A., Raup, B., and Manley, W.: 1997: Numerical modeling of late Glacial Laurentide ice advance across Hudson Strait: Insights into terrestrial and marine geology, mass balance, and calving flux. Paleoceanography 12(1997), pp. 97-110.
Pfeffer, W.T., and Humphrey, N, 1996: Determination of timing and location of water movement and ice layer formation by temperature measurments in sub-freezing snow. Journal of Glaciology, 42(141), pp. 292-304.
Welch, B.C., Pfeffer, W.T., Harper, J., and Humphrey, N., 1996: A maximum resolution glacier-bed surface obtained by radio-echo sounding. in Glaciers, Ice Sheets, and Volcanoes: A tribute to Mark F. Meier (S.C. Colbeck, ed.), CRREL Special Report 96-27, pp. 105-110..
Harper, J., Humphrey, N., Pfeffer, W.T., and Welch, B.C., 1996: Short wavelength variations in the horizontal velocity field of a glacier. in Glaciers, Ice Sheets, and Volcanoes: A tribute to Mark F. Meier (S.C. Colbeck, ed.), CRREL Special Report 96-27, pp. 41-48
Sassolas, C., Pfeffer, W.T., and Amadei, B., 1996: Stress interaction between multiple crevasses in glacier ice. Cold Regions Research and Engineering. 24(1996), PP. 107-116
Bahr, D.B., Pfeffer, W.T., and Meier, M.F., 1995: Theoretical limits to englacial stress calculations. Journal of Glaciology, Vol. 40, No. 136, pp. 508-518.
Braithwaite, R.J., Laternser, M., and Pfeffer, W.T., 1995: Variations of near-surface firn density in the lower accumulation area of the Greenland Ice Sheet, Pakitsoq, West Greenland. Journal of Glaciology, Vol. 40, No. 136, pp. 477-485.
Braithwaite, R.J., Laternser, M., and Pfeffer, W.T., 1995: Variations of near-surface firn density in the lower accumulation area of the Greenland Ice Sheet, Pakitsoq, West Greenland. Journal of Glaciology, Vol. 40, No. 136, pp. 477-485.
Pfeffer. W.T., 1992: Stress-induced foliation in the terminus of Variegated Glacier, Alaska, formed during the 1982/83 surge. Journal of Glaciology, 38(129):213-222.
Pfeffer, W.T., Meier, M.F., and Illangasekare, T.H., 1991: Retention of Greenland runoff by refreezing: Implications for projected future sea-level change. Journal of Geophysical Research, 96(C-12):22,117-22,124.
Pfeffer, W.T., Illangasekare, T.H., and Meier, M.F., 1990: Analysis and modeling of melt-water refreezing in dry snow. Journal of Glaciology, 36(123):238-246.