Sridhar Anandakrishnan

EESI Associate

Sridhar Anandakrishnan
Ph.D. University of Wisconsin-Madison, 1990

Penn State Ice and Climate Exploration
EMS Earth and Environmental Systems Institute
Associate Professor of Geosciences

Contact Information:
Department of Geosciences
442 Deike Building
University Park, PA 16802
Phone: (814) 863-6742
email: sak@essc.psu.edu
Dept: web site: http://www.geosc.psu.edu/
Center web site: http://www.eesi.psu.edu/centers/ice.shtml

Current Research Interests:
Glaciology, ice stream migration, time-series investigations, polar regions and Antarctic ice sheet studies and Antarctic tectonics.

Selected Publications:
Winberry, P., Anandakrishnan, S., and Alley, R.B. Seismic Observations of Transient Subglacial Water-Flow beneath MacAyeal Ice Stream, West Antarctica. Geophys. Res. Lett., 36, L11502, doi:10.1029/2009GL037730, 2009.

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.

Horgan, H.J., S. Anandakrishnan, R.B. Alley, L.E. Peters, G.P. Tsoias, D.E. Voigt, and J.P. Winberry, Complex fabric development revealed by englacial seismic reectivity: Jakobshavn Isbrae, Greenland, Geophys. Res. Lett. 35, L10501, doi:10.1029/2008GL033712, 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. J. Geophys. Res. 114, F01016, DOI:10.1029/2008JF001035 (in press).

Peters L. E., S. Anandakrishnan, C.W. Holland, H. J. Horgan, D. D. Blankenship, D. E. Voigt, Seismic detection of a subglacial lake near the South Pole, Antarctica, Geophys. Res. Lett., 35, L23501, doi:10.1029/2008GL035704, 2008.

Reusch, M., Nyblade, A.A., Benoit, M.H., Wiens, D.A., Anandakrishnan, S., Voigt, D., and Shore, P.J.. Mantle transition zone thickness beneath Ross Island, the Transantarctic Mountains, and East Antarctica. , 35(12):L12301, 2008.

Wiens, DA, S Anandakrishnan, JP Winberry, MA King. Simultaneous geodetic and seismic observations of stick slip motion of an Antarctic ice stream, Nature. v. 453, pp 770-774, 2008.

Rathbun, A.P., C. Marone, R.B. Alley and S. Anandakrishnan. Laboratory study of the frictional rheology of sheared till. J. Geophys. Res. doi:10.1029/2007JF000815, v. 113, 2008.

E. Kirby, S. Anandakrishnan, F. Phillips, and S. Marrero. Late pleistocene slip rate along the owens valley fault, eastern california. GEOPHYSICAL RESEARCH LETTERS, 35(1):L01304, Jan 2008.

Alley, R.B., Anandakrishnan, S., Dupont, T.K., Parizek, B.R., and Pollard, D.. Effect of Sedimentation on Ice-Sheet Grounding-Line Stability. Science, 315(5820):1838– 1841, 2007.

Anandakrishnan, S.N., Catania, G.A., Alley, R.B., and Horgan, H.J.. Discovery of till deposition at the grounding line of Whillans Ice Stream. Science, 315(5820):1835–1838, 2007.

Anandakrishnan, S., Voigt, D.E., Alley, R.B., and King, M.A., Ice stream D ﬂow speed is strongly modulated by the tide beneath the Ross Ice Shelf. Geophys. Res. Lett., 30(7), 13-1–13-4, 2003.

Bindschadler, R.A., King, M.A., Alley, R.B., Anandakrishnan, S., and Padman, L., Tidally controlled stickslip discharge of a West Antarctic Ice Stream, Science, 301:1087–1089, 2003.

Anandakrishnan, S., Dilatant till layer layer near the onset of streaming ﬂow of ice stream C, determined by AVO analysis, Ann. Glaciol., 36:283–286, 2003.

Anandakrishnan, S., R. B. Alley, R. W. Jacobel, and H. Conway, The ﬂow regime of ice stream C and hypotheses concerning its recent stagnation, in The West Antarctic Ice Sheet: Behavior and Environment , ed: R. B. Alley and R. A. Bindschadler, Antarctic Research Series, pp. 283–296, AGU, 2001.

Anandakrishnan, S., D. E. Voigt, P. Burkett, B. Long, and R. C. Henry, Deployment of a broadband seismic network in West Antarctica, Geophys. Res. Lett., 27, 2053–2056, 2000.

Anandakrishnan, S., D. D. Blankenship, R. B. Alley, and P. L. Stoffa. Inﬂuence of subglacial geology on the position of a West Antarctica ice stream from seismic measurements, Nature, v. 394, pp. 62–65, 1998.

Anandakrishnan, S. and R. B. Alley. Tidal forcing of basal seismicity of ice stream C, West Antarctica seen far inland. J. Geophys. Res., 102(B7): 15183–15196, 1997.

Anandakrishnan, S. and C. R. Bentley. Microearthquakes beneath ice streams B & C, West Antarctica: Observations and implication. J. Glac., v. 39, no. 133, pp. 455–462, 1993.