Research Publications

Publications by W. Tad Pfeffer

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W. Tad Pfeffer 2012: Glaciology needs to come out of the ivory tower. EARTH, 57(11): 8-10.

Arcone, S., Campbell, S., W. Tad Pfeffer 2014: GPR profiles of glacial till and its transition to bedrock: Interpretation of water content, depth and signal loss from diffractions. Journal of Environmental & Engineering Geophysics, 19(4): 207-228. DOI: 10.2113/JEEG19.4.207

W. Tad Pfeffer 2014: The hand of the small-town builder: Summer homes in northern New England, 1876-1930. David R. Godine, 256 pp.

Gardner, A. S., Moholdt, G., Cogley, J. G., Wouters, B., Arendt, A. A., Wahr, J., Berthier, E., Hock, R., W. Tad Pfeffer, Kaser, G., Ligtenberg, S. R. M., Bolch, T., Sharp, M. J., Hagen, J. O., van den Broeke, M. R., Paul, F. 2013: A reconciled estimate of glacier contributions to sea level rise: 2003 to 2009. Science, 340(6134): 852-857. DOI: 10.1126/science.1234532

Straneo, F., Heimbach, P., Sergienko, O., Hamilton, G., Catania, G., Griffies, S. Hallberg, R., Jenkins, A., Joughin, I., Motyka, R., W. Tad Pfeffer, Price, S. F., Rignot, E., Scambos, T., Truffer, M., Vieli, A. 2013: Challenges to understanding the dynamic response of Greenland’s marine terminating glaciers to oceanic and atmospheric forcing. Bulletin of the American Meteorological Society, 94(8): 1131-1144. DOI: 10.1175/BAMS-D-12-00100.1

Church, J. A., Clark, P. U., Cazenave, A., Gregory, J. M., Jevrejeva, S., Levermann, A., Merrifield, M. A., Milne, G. A., Nerem, R. S., Nunn, P. D., Payne, A. J., W. Tad Pfeffer, Stammer, D., Unnikrishnan, A. S. 2013: Sea-level rise by 2100. Science, 342(6165): 1445. DOI: 10.1126/science.342.6165.1445-a

Humphrey, N. F., Harper, J. T., W. Tad Pfeffer 2012: Thermal tracking of meltwater retention in Greenland's accumulation area. Journal of Geophysical Research-Earth Surface, 117: F01010. DOI: 10.1029/2011JF002083

Brown, J., Bradford, J., Harper, J., W. Tad Pfeffer, Humphrey, N., Mosley-Thompson, E. 2012: Georadar-derived estimates of firn density in the percolation zone, western Greenland ice sheet. Journal of Geophysical Research-Earth Surface, 117: F01011. DOI: 10.1029/2011JF002089

Jacob, T., Wahr, J., W. Tad Pfeffer, Swenson, S. 2012: Recent contributions of glaciers and ice caps to sea level rise. Nature, 482(7386): 514-518. DOI: 10.1038/nature10847

McNabb, R. W., Hock, R., Shad O’Neel, Rasmussen, L. A., Ahn, Y., Braun, M., Conway, H., Herreid, S., Joughin, I., W. Tad Pfeffer, Smith, B. E., Truffer, M. 2012: Using surface velocities to calculate ice thickness and bed topography: A case study at Columbia Glacier, Alaska, USA. Journal of Glaciology, 58(212): 1151-1164. DOI: 10.3189/2012JoG11J249

Colgan, W., W. Tad Pfeffer, Rajaram, H., Abdalati, W., James Balog 2012: Monte Carlo ice flow modeling projects a new stable configuration for Columbia Glacier, Alaska, c. 2020. Cryosphere, 6(6): 1395-1409. DOI: 10.5194/tc-6-1395-2012

Harper, J., Humphrey, N., W. Tad Pfeffer, Brown, J., Fettweis, X. 2012: Greenland ice-sheet contribution to sea-level rise buffered by meltwater storage in firn. Nature, 491(7423): 240-243. DOI: 10.1038/nature11566

Brown, J., Harper, J., W. Tad Pfeffer, Humphrey, N., Bradford, J. 2011: High-resolution study of layering within the percolation and soaked facies of the Greenland ice sheet. Annals of Glaciology, 52(59): 35-42. DOI: 10.3189/172756411799096286

Harper, J., Humphrey, N., W. Tad Pfeffer, Brown, J. 2011: Firn stratigraphy and temperature to 10 m depth in the percolation zone of western Greenland, 2007-2009. Boulder, Colorado: INSTAAR Occasional Paper 60.

Walter, F., Shad O’Neel, McNamara, D., W. Tad Pfeffer, Bassis, J. N., Fricker, H. A. 2010: Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska. Geophysical Research Letters, 37: L15501. DOI: 10.1029/2010GL043201

Bahr, D., W. Tad Pfeffer, Browning, R. C. 2009: The surprising motion of ski moguls. Physics Today, 62(11): 68-69.

Fudge, T. J., Harper, J. T., Humphrey, N. F., W. Tad Pfeffer 2009: Rapid glacier sliding, reverse ice motion and subglacial water pressure during an autumn rainstorm. Annals of Glaciology, 50(52): 101 108.

Owen, L. A., Thackray, G., Robert S. Anderson, Briner, J., Kaufman, D., Roe, G., W. Tad Pfeffer, Yi, C. 2009: Integrated research on mountain glaciers: current status, priorities and future prospects. Geomorphology, 103(2): 158 171.

W. Tad Pfeffer 2009: People and places in the Far North: the vision of life, community, and change in the circumpolar Arctic, and its public perception. In Jakobsen, S. (ed.), Images of the North: Histories-Identities-Ideas. Studia Imagologica 14, Amsterdam.

Fudge, T. J., Humphrey, N. F., Harper, J. T., W. Tad Pfeffer 2008: Diurnal fluctuations in borehole water levels: configuration of the drainage system beneath Bench Glacier, Alaska, USA. Journal of Glaciology, 54(185): 297-306.

Harper, J. T., Humphrey, N. F., W. Tad Pfeffer, Lazar, B. 2007: Two modes of accelerated glacier sliding related to water. Geophysical Research Letters, 34: L12503. DOI: 10.1029/2007GL030233

W. Tad Pfeffer 2007: A simple mechanism for irreversible tidewater glacier retreat. Journal of Geophysical Research Earth Surface, 112(F3): F03S2. DOI: 10.1029/2006JF000590

W. Tad Pfeffer 2007: The Opening of a New Landscape: Columbia Glacier at Mid-retreat. American Geophysical Union Press.

Harper, J. T., Humphrey, N. F., W. Tad Pfeffer, Fudge, T., Shad O’Neel 2005: Evolution of subglacial water pressure along a glacier's length. Annals of Glaciology, 40: 31-36.

Meier, M. F., Bahr, D., Dyurgerov, M. B., W. Tad Pfeffer 2005: Comment on The potential for sea level rise: New estimates from glacier and ice cap area and volume distribution by S. C. B. Raper and R. J. Braithwaite. Geophysical Research Letters, 32 (17): L17501. DOI: 10.1029/2005GL023319

Fudge, T. J., Harper, J. T., Humphrey, N. F., W. Tad Pfeffer 2005: Diurnal water-pressure fluctuations: Timing and pattern of termination below Bench Glacier, Alaska, USA. Annals of Glaciology, 40: 102 106.

W. Tad Pfeffer, Mrugala, R. 2002: Temperature gradient and initial snow density as controlling factors in the formation and structure of hard depth hoar. Journal of Glaciology, 48(163): 485-494. DOI: 10.3189/172756502781831098

Marshall, H. P., Harper, J. T., W. Tad Pfeffer, Humphrey, N. F. 2002: Depth-varying constitutive properties observed in an isothermal glacier. Geophysical Research Letters, 29(23): article 2146. DOI: 10.1029/2002GL015412

W. Tad Pfeffer, Cohn, J., Meier, M. F., Krimmel, R. M. 2001: Alaskan glacier beats a dramatic retreat. Earth in Space, 13(5): 10-13.

Harper, J. T., Humphrey, N. F., W. Tad Pfeffer, Hurzurbazar, S. V., Bahr, D., Welch, B. C. 2001: Spatial variability in the flow of a valley glacier: Deformation of a large array of boreholes. Journal of Geophysical Research-Solid Earth, 106(B5): 8547-8562. DOI: 10.1029/2000JB900440

MacLean, B., John T. Andrews, Gray, J. T., Hall, F. R., Hardy, I., Anne JenningsWilliam F. ManleyW. Tad Pfeffer, Vilks, G. 2001: Hudson Strait Quaternary sediments and late glacial and deglaciation history: A discussion and summary. In MacLean, B. (ed.) 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. Geological Survey of Canada, Bulletin 566: 181-192.

W. Tad Pfeffer 2001: Ice dynamics modeling of the Hudson Strait region at late glacial time . In: MacLean, B. (ed.) 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 Terrestial studies. Geological Survey of Canada, Bulletin 566:

Williams, M. W., Rikkers, M., W. Tad Pfeffer 2000: Ice columns and frozen rills in a warm snowpack, Green Lakes valley, Colorado, U.S.A. Nordic Hydrology, 31(3): 169-186.

W. Tad Pfeffer, Humphrey, N.F., Amadei, B., Harper, J., Wegmann, J. 2000: In-situ stress tensor measured in an Alaska Glacier . Annals of Glaciology 31:229-235

Kaplan, M. R., W. Tad Pfeffer, Sassolas, C., Gifford H. Miller 1999: Numerical Modeling of the Northeastern Laurentide Ice Sheet in the Baffin Island Region, Eastern Canadian Arctic: the role of a Cumberland Sound ice stream. Canadian Journal of Earth Sciences 36;1315-1326

Konrad, S.K., Humphrey, N.F., Steig, E.J., Clark, D.H., Potter, N., Jr., W. Tad Pfeffer 1999: Rock glacier dynamics and paleoclimatic implications . Geology 27(12):1131-1134

W. Tad Pfeffer, Sassolas, C., Bahr, D., Meier, M. F. 1998: Response time of glaciers as a function of size and mass balance: II. Numerical experiments. Journal of Geophysical Research, 103(B5): 9783-9789.

Bahr, D., W. Tad Pfeffer, Sassolas, C., Meier, M. F. 1998: Response time of glaciers as a function of size and mass balance: I. Theory. Journal of Geophysical Research, 103(B5): 9777-9782.

Welch, B. C., W. Tad Pfeffer, Harper, J. T., Humphrey, N. F. 1998: Mapping subglacial surfaces of temperate valley glaciers by two-pass migration of a radio-echo sounding survey. Journal of Glaciology, 44(146): 164-170.

W. Tad Pfeffer, Humphrey, N. F. 1998: Formation of ice layers by infiltration and refreezing of meltwater. Annals of Glaciology, 26: 83-91.

Harper, J.T., Humphrey, N.F., W. Tad Pfeffer 1998: Three-dimensional deformation measured in an Alaskan glacier . Science (281), 1340-1342

Harper, J.T., Humphrey, N.F., W. Tad Pfeffer 1998: Crevasse patterns and the strain rate tensor: a high-resolution comparison . Journal of Glaciology (146), 68-76

Dwyer, J. F., Amadei, B., Lin, C. T., W. Tad Pfeffer 1997: Edge function analysis of glacier mechanics problems. International Journal of Solids and Structures, 34(8): 991-1005. DOI: 10.1016/S0020-7683(96)00041-8

Pan, E., Sassolas, C., Amadei, B., W. Tad Pfeffer 1997: A 3-D boundary element formulation of viscoelastic media with gravity. Computational Mechanics, 19(4): 308-316. DOI: 10.1007/s004660050179

W. Tad Pfeffer, Dyurgerov, M. B., Kaplan, M., Dwyer, J., Sassolas, C., Anne Jennings, Raup, B., William F. Manley 1997: Numerical modeling of Late Glacial Laurentide advance of ice across Hudson Strait: Insights into terrestrial and marine geology, mass balance, and calving flux. Paleoceanography, 12(1): 97-110.

W. Tad Pfeffer, Humphrey, N. F. 1996: Determination of timing and location of water movement and ice-layer formation by temperature measurements In sub-freezing snow. Journal of Glaciology, 42(141): 292-304.

Welch, B. C., W. Tad Pfeffer, Harper, J. T., Humphrey, N. F. 1996: A maximum resolution glacier-bed surface obtained by radio-echo sounding. In: Colbeck, S.C., ed., Glaciers, ice sheets and volcanoes: A tribute to Mark F. Meier. CRREL Special Report 96-27, pp. 105-110.

Harper, J. T., Humphrey, N. F., W. Tad Pfeffer, Welch, B. C. 1996: Short wavelength variations in the horizontal velocity field of a valley glacier. In Colbeck, S. C. (ed.), Glaciers, Ice Sheets and Volcanoes: A Tribute to Mark F. Meier. CRREL Special Report 96-27, pp. 41-48.

Bahr, D., W. Tad Pfeffer, Meier, M. F. 1994: Theoretical limitations to englacial velocity calculations. Journal of Glaciology, 40(136): 509-518.

Braithwaite, R. J. M., Laternser, M., W. Tad Pfeffer 1994: Variations of near-surface firn density in the lower accumulation area of the Greenland Ice Sheet, Pakitsoq, West Greenland. Journal of Glaciology, 41(136): 477-485.

Braithwaite, R. J., W. Tad Pfeffer, Blatter, A., Humphrey, N. F. 1992: Meltwater refreezing in the accumulation area of the Greenland Ice Sheet, Pakitsoq region, summer 1991. In Current Research, Greenland Geological Survey Report of Activities, Report No. 155, pp. 13-17.

W. Tad Pfeffer 1992: Stress-induced foliation in the terminus of Variegated Glacier, Alaska, U.S.A., formed during the 1982-83 surge. Journal of Glaciology, 38(129): 213-222.

W. Tad Pfeffer, Meier, M. F. 1991: Retention of Greenland runoff by refreezing: Implications for projected future sea level change. Journal of Geophysical Research, 96(C12): 22,117-22,124.

W. Tad Pfeffer, Illangasekare, T. H., Meier, M. F. 1990: Analysis and modeling of melt-water refreezing in dry snow. Journal of Glaciology, 36(123): 238-246.

Illangasekare, T. H., Walter, R. J., Jr., Meier, M. F., W. Tad Pfeffer 1990: Modeling of melt-water infiltration in subfreezing snow. Water Resources Research, 26(5): 1001-1012.

Kamb, B., Raymond, C. F., Harrison, W. D., Engelhardt, H., Echelmeyer, K. A., Humphrey, N., Brugman, M. M., W. Tad Pfeffer 1985: Glacier surge mechanism: 1982-1983 surge of Variegated Glacier, Alaska. Science, 227(4686): 469-479. DOI: 10.1126/science.227.4686.469