latest news

11.28.2016

David CS is on his way to the Antarctic for the third time! He'll be deploying as part of the South Pole ICE core (SPICE) project this season.

06.20.2016

Erich Osterberg, Gabe Lewis, and Thomas Overly have returned from Greenland and a highly successful first year of the GreenTRaCs traverse! See the full story on Gabe's blog!

other information

Last updated 06.13.2016

Selected Peer Reviewed Literature

Lüthi M. P., Ryser C., Andrews L. C., Catania G. A., Funk M., Hawley, R. L., Hoffman M. J., Neumann T. A., 2015. Excess heat in the Greenland Ice Sheet: Dissipation, temperate paleo- firn and cryo-hydrologic warming. The Cryosphere 9 doi:10.5194/tc-9-245-2015

Ryser, C., M. P. Lu ̈thi, L. C. Andrews, G. A. Catania, M. Funk,Hawley, R. L., M. Hoffman, T. A. Neumann. 2014. Caterpillar-like ice motion in the ablation zone of the Greenland Ice Sheet. Journal of Geophysical Research 119(10), 2258-2271, doi:10.1002/2013JF00306

Andrews, L. C., G. A. Catania, M. J. Hoffman, J. D. Gulley, M. P. Lüthi, C. Ryser, Hawley, R. L. & T. A. Neumann. 2014. Direct observations of evolving subglacial drainage beneath the Greenland Ice Sheet. Nature 514, 80-83, doi:10.1038/nature13796

Reyser, C., M.P. Lüthi, L.C. Andrews, M.J. Homan, G.A. Catania, Hawley, R. L., T. A. Neumann. 2014. Sustained high sliding motion under the Greenland Ice Sheet revealed by borehole deformation. Journal of Glaciology 60(220) 647-660, doi: 0.3189/2014JoG13J196

Polashenski, C., Z. Courville, C. Benson, A. Wagner, J. Chen, G. Wong, R. L. Hawley & D. Hall. 2014. Observations of Pronounced Greenland Ice Sheet Firn Warming and Implications for Runoff Production. Geophysical Research Letters. DOI: 10.1002/2014GL059806

Hawley, R. L., Z. R. Courville, L. M. Kehrl, E. R. Lutz, E. C. Osterberg, T. B. Overly, G. J. Wong. 2014. Recent Accumulation Variability in Northwest Greenland from GPR and Shallow Cores Along the Greenland Inland Traverse. Journal of Glaciology 60(220), 60, doi: 10.3189/2014JoG13J141

Kehrl, L. M., R. L. Hawley, E.C. Osterberg, D.A. Winski, and A.P. Lee. 2014. 25 years of volumetric change on lower Peyto Glacier, Alberta, Canada. Journal of Glaciology 60(219)

Gray, L., D. Burgess, L. Copland, R. Cullen, N. Galin, R. L. Hawley, and V. Helm. 2013. Swath processing of interferometric altimetry for glacier surface topography. The Cryosphere 7 1857-1867. doi:10.5194/tc-7-1857-2013

Morriss, B. F., R. L. Hawley, J. W. Chipman, L. C. Andrews, G. A. Catania, M. J. Hoffman, M. P. Lüthi, and T. A. Neumann. 2013. A ten-year record of supraglacial lake evolution and rapid drainage in West Greenland using an automated processing algorithm for multispectral imagery. The Cryosphere 7 1767-1877. doi:10.5194/tc-7-1869- 2013

Arthern, R, H. F. J. Corr, F. Gillet-Chaulet, Hawley R. L., Elizabeth M. Morris. 2013. Inversion for the density-depth profile of polar firn using a stepped-frequency radar. Journal of Geophysical Research 118(3) 1257- 1263, doi: 10.1002/jgrf.20089

Hawley R. L., O. Brandt, T. Dunse J.-O. Hagen V. Helm, J. Kohler, K. Langley, E. Malnes K.-A. Hogda. 2013. Using airborne Ku-band altimeter waveforms to investigate winter accumulation and glacier facies on Austfonna, Svalbard. Journal of Glaciology 59(217), doi: 10.3189/2013JoG13J051.

Selected Conference Abstracts

Wong, G.J., E.C. Osterberg, Z. Courville, R.L. Hawley, E. Lutz, and T.B. Overly. 2012. Geochemical cycling and depositional patterns across the northwest region of the Greenland Ice Sheet as determined from trace element chemistry. EOS, Trans. AGU, fall meeting supplement, Abstract C51A-0782.

Wong, G.J., T.B. Overly, Z. Courville, R.L. Hawley, E. Lutz, and E.C. Osterberg. 2011. Thule to Summit: Using the physical and chemical properties of shallow firn to describe glacier facies, accumulation, and 55 years of change. EOS, Trans. AGU, fall meeting supplement, Abstract C33A-0625.

Lutz, E., R.L. Hawley, H-P. Marshall, E.C. Osterberg, Z. Courville, T.B. Overly, and G.J. Wong. 2011. Thule to Summit: Understanding the physical properties of northern Greenland near-surface snow and firn. EOS, Trans. AGU, fall meeting supplement, Abstract C33A-0624.

Overly, T.B., G.J. Wong, Z. Courville, R.L. Hawley, E. Lutz, and E.C. Osterberg. 2011. Thule to Summit: Accumulation variability, surface elevation, and satellite altimeter validation from ground-penetrating radar and GPS profils. EOS, Trans. AGU, fall meeting supplement, Abstract C33A-0623.

Wong, G.J., E.C. Osterberg, R.L. Hawley, and Z. Courville. 2010. Artificially induced melt in firn at Summit, Greenland. EOS, Trans. AGU, fall meeting supplement, Abstract C33D-0575.

Hawley, R.L., D. Winski, and E.C. Osterberg. 2009. Recent mass changes of Peyto Glacier, Alberta, from remote sensing and field measurements. EOS, Trans. AGU, fall meeting supplement, Abstract C21D-0461.

Hawley, R.L., E.M. Morris, and O. Brant. 2009. Connecting airborne Ku-band radar measurements to surface-based measurements: Integrating data from ASIRAS, VHB, and physical property measurements from Greenland and Svalbard. EOS, Trans. AGU, fall meeting supplement, Abstract C21E-01.

Kehrl L.M., R.L. Hawley, R.D. Powell, and J. Brigham-Grette. 2009. Fjord floor landforms and processes at the termini of Kongsvegen and Kronebreen Glaciers, Svalbard. EOS, Trans. AGU, fall meeting supplement, Abstract C23C-0504.

Siegfried, M.R., R.L. Hawley, J.F. Burkhart, and S. O'Neel. 2009. A first-order accuracy assessment of GLAS elevation data near Summit, Greenla nd. EOS, Trans. AGU, fall meeting supplement, Abstract G53A-0666.

Hawley, R.L., E.M. Morris, and O. Brant. 2008. High-Resolution borehole/core techniques for snow and firn stratigraphy. EOS, Trans. AGU, fall meeting supplement, Abstract C21C-557.

Brandt, Ola, R.L. Hawley, J. Kohler, J.O. Hagen, E.M. Morris, T. Dunse, J.B.T. Scott, and T. Eiken. 2008. Comparison of airborne radar altimeter and ground-based Ku-band radar measurements on the ice cap Austfonna, Svalbard. IGARSS 2008 meeting, Boston, MA 7-11 July 2008. doi:10.1109/IGARSS.2008.4779686

Hawley, R.L. 2007. (Invited) In-Situ measurements of Firn Compaction using Borehole Optical Stratigraphy. Workshop on the Micrrostructure and Properties of Firn, Dartmouth College, Hanover NH, 10-11 March, 2008.

Hawley, R.L. and A.P. Shepherd. 2007. Across track processing for elevation retrievals from a synthetic aperture, interferometric radar altimeter. IEEE International Geoscience and Remote Sensing Symposium. July 2007, Barcelona, Spain.

Hawley, R.L. and E.D. Waddington. 2006. In-situ measurements of temporal and spatial variability in firn compaction rates at Summit, Greenland using Borehole Optical Stratigraphy. EOS, Trans. AGU, fall meeting supplement, Abstract C41A-229.

Hawley, R.L. 2006 (Invited) Calibration and Validation of Radar for Ice and Snow Studies. CEOS Calibration/Validation workshop. October 2006, Edinburgh, Scotland.

Cullen, R., M.W.J. Davidson, M.R. Drinkwater, C.R. Francis, C. Haas, R.L. Hawley, C.M. Mavrocordatos, E.M. Morris, W. Rack, G. Ratier, P. Viau, and J.D. Wingham. 2006. ESA's New Range of Radar Altimeters for the Extraction of Geophysical Parameters From Land, Sea Ice and Ocean Surfaces. ESA International Symposium, '15 years of progress in Radar Altimetry,' Venice, Italy.

Shepherd, A.P., Z. Du, and R.L. Hawley. 2005. Cryosat Swath-mode elevation retrievals for InSAR baseline control. First international CryoSat workshop, ESA Esrin, Frascatti, Italy.

Hawley, R.L., E.M. Morris, and E.D. Waddington. 2004. Borehole Optical Stratigraphy and Neutron Scattering Density Measurements at Summit, Greenland. EOS, Trans. AGU, fall meeting supplement, Abstract C31B-0323.

Hawley, R.L. and E.M. Morris. 2004. How snow/firn density affects scattering of visible light: Current events in Borehole Optical Stratigraphy. Northwest Glaciologists Meeting, November 2004.

Hawley, R.L., E.D. Waddington, J.R. McConnell, and D.P. Winebrenner. 2003. Lightweight shallow ice coring and borehole logging can provide decadal- to millennial-scale indicators of climate change around the arctic basin. SEARCH Open Science Meeting, Seattle, Washington.

Hawley, R.L., and E.D. Waddington. 2002. Borehole Optical Stratigraphy: Investigating Paleoclimate through the optical properties of ice. EOS, Trans. AGU, 83(47) fall meeting supplement, Abstract C62A-0907.

Dibb, J.E., R.L. Hawley, S. Sturges, and P Austin. 1998. Air-Snow Relationships at Summit, Greenland: The 1997-1998 Winter-Over Experiment. EOS, Trans. AGU, 79(45) fall meeting supplement, Abstract H12H-02.

Hawley, R.L., and M.R. Albert. 1998. Physical snow surface characteristics during the 1997-1998 winter-over experiment at Summit, Greenland. EOS, Trans. AGU, 83(47) fall meeting supplement, Abstract H12H-09.

Albert, M.R. and R.L. Hawley. 1998. Meteorology and surface energy balance during the 1997-1998 winter-over experiment at Summit, Greenland. EOS, Trans. AGU, 83(47) fall meeting supplement, Abstract H12H-12.

Blake, N.J., D.R. Blake, F.S. Rowland, J.E. Dibb, R.L. Hawley, S. Sturges, and J.D. Kahl. 1998. Year-Round Measurements of Atmospheric Nonmethane Hydrocarbons, Halocarbons, and Light Alkyl Nitrates at Summit, Greenland Between June 1997 and April 98. EOS, Trans. AGU, 83(47) fall meeting supplement, Abstract H12H-05.

Arsenault, M.A., J.E. Dibb, R.L. Hawley, and S. Sturges. 1998. Soluble ionic composition at Summit, Greenland, from the 1997-1998 winter-over. EOS, Trans. AGU, 83(47) fall meeting supplement, Abstract H12H-07.

Hawley, R.L., G.D. Clow, E.D. Waddington, J. Fitzpatrick, and J. Dibb. 1997. Recent climate from physical properties of firn at Taylor Dome, Antarctica. International Symposium on Antarctica and Global Change, Hobart, Australia.