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Richard Alley

EESI Associate

Richard Alley
Ph.D. University of Wisconsin-Madison, 1987

Penn State Ice and Climate Exploration
EMS Earth and Environmental Systems Institute

Evan Pugh Professor of Geosciences

Contact Information:
Department of Geosciences
517 Deike Building
University Park, PA 16802
Phone: (814) 863-1700
email:
ralley@essc.psu.edu
Dept. website:
http://www.geosc.psu.edu/
Center website:
http://www.eesi.psu.edu/centers/ice.shtml

Current Research Interests:
Glaciology, ice sheet stability, paleoclimates from ice cores
Interpretation of paleoclimatic records from ice cores
Abrupt climate change
Physical properties of ice cores
Ice-sheet collapse and sea-level change
Erosion and sedimentation by ice sheet

Selected Publications:
Alley, R.B., H.J. Horgan, I. Joughin, K.M. Cuffey, T.K. Dupont, B.R. Parizek, S. Anandakrishnan and J. Bassis. A simple law for ice-shelf calving. Science 322, 1344-1344 (2008).

Applegate, P.J., T.V. Lowell and R.B. Alley. Comment on ‘‘Absence of cooling in New Zealand and the adjacent ocean during the Younger Dryas chronozone’’. Science, 320, 746d, DOI:10.1126/science.1152098 (2008).

Das, S.B., and R.B. Alley, Rise in frequency of surface melting at Siple Dome through the Holocene: Evidence for increasing marine influence on the climate of West Antarctica,Journal of Geophysical Research 113, D02112, doi:10.1029/2007JD008790 (2008).

Horgan, H.J., S. Anandakrishnan, R.B. Alley, L.E. Peters, G.P. Tsoflias, D.E. Voigt, and J.P. Winberry, Complex fabric development revealed by englacial seismic reflectivity: Jakobshavn Isbrae, Greenland, Geophysical Research Letters 35, L10501, doi:10.1029/2008GL033712 (2008).

Joughin, I., I. Howat, R.B. Alley, G. Ekstrom, M. Fahnestock, T. Moon, M. Nettles, M. Truffer, and V.C. Tsai, Ice-front variation and tidewater behavior on Helheim and Kangerdlugssuaq Glaciers, Greenland, Journal of Geophysical Research, 113, F01004, doi:10.1029/2007JF000837 (2008).

Joughin, I., M. Howat, M. Fahnestock, B. Smith, W. Krabill, R.B. Alley, H. Stern and M. Truffer, Continued evolution of Jakobshavn Isbrae following its rapid speedup. Journal of Geophysical Research 113, F04006, doi:10.1029/2008JF001023 (2008).

Kelly, M.A., T.V. Lowell, B.L. Hall, J.M. Schaefer, R.C. Finkel, B.M. Goehring, R.B. Alley and G.H. Denton, A Be-10 chronology of lateglacial and Holocene mountain glaciation in the Scoresby Sund region, east Greenland: implications for seasonality during lateglacial time. Quaternary Science Reviews, 53, 216-223 (2008).

McGwire, K.C., G.M. Hargreaves, R.B. Alley, T.J. Popp, D.B. Reusch, M.K. Spencer and K.C. Taylor, An integrated system for optical imaging of ice cores. Cold Regions Science and Technology 53, 216-223 (2008).

McGwire, K.C., J.R. McConnell, R.B. Alley, J.R. Banta, G.M. Hargreaves and K.C. Taylor, Dating annual layers of a shallow Antarctic ice core with an optical scanner. Journal of Glaciology 54(188), 831-838 (2008).

Rathbun, A.P., C. Marone, R.B. Alley, and S. Anandakrishnan, Laboratory study of the frictional rheology of sheared till, Journal of Geophysical Research 113, F02020, doi:10.1029/2007JF000815 (2008).

Walker, R. T., T. K. Dupont, B. R. Parizek, and R. B. Alley (2008), Effects of asal-melting distribution on the retreat of ice-shelf grounding lines, Geophys. Res. Lett., 35, L17503, doi:10.1029/2008GL034947 (2008).

Winberry, J.P., S. Anandakrishnan, R.B. Alley, R.A. Bindschadler and M.A. King, Basal mechanics of ice streams: Insights from the stick-slip motion of Whillans Ice Stream, West Antarctica. Journal of Geophysical Research 114, F01016, DOI:10.1029/2008JF001035 (in press).

Vacco, D.A., R.B. Alley, D. Pollard, Modeling dependence of moraine deposition on climate history: The effect of seasonality. Quaternary Science Reviews (in press; available online 12 November 2008).

Solomon, S., R. Alley, J. Gregory, P. Lemke and M. Manning. A closer look at the IPCC 5 Report, Science 310, 409-410, doi: 10.1126/science.319.5862.409c (2008).

Alley, R.B., M. Fahnestock and I. Joughin. Climate Change: Understanding glacier flow in changing times (Perspective). Science 322, 1061-1062 (2008).

Severinghaus, J.P. and R.B. Alley, New data on abrupt climate changes, Science, Letters, http://www.sciencemag.org/cgi/eletters/321/5889/680, (2008).

Column on climate change, Centre Daily Times, Jul. 10. Manuscripts submitted. (1) Vacco, D.A., R.B. Alley and D. Pollard. Numerical modeling of valley glacier stagnation: To ward a new paleoclimatic indicator. Quaternary Research.

Alley, R.B. Paleoclimatic insights into future climate challenges. Philosophical Transactions of the Royal Society of London , Series A 361(1810), 1831-1849 (2003), 10.1098/rsta.2003.1254.

Alley, R.B. The Younger Dryas cold interval as viewed from central Greenland . Quaternary Science Reviews 19, 213-226 (2000).

Alley, R.B. and P.U. Clark. The deglaciation of the northern hemisphere: a global perspective. Annual Reviews of Earth and Planetary Sciences 27, 149-182 (1999).

Alley, R.B., S. Anandakrishnan and P. Jung. Stochastic resonance in the North Atlantic . Paleoceanography 16(2), 190-198 (2001).

Alley, R.B., E.J. Brook and S. Anandakrishnan, A northern lead in the orbital band:

North-south phasing of ice-age events. Quaternary Science Reviews 21(1-3), 431-441 (2002).