Current projects
International Thwaites Glacier Collaborations (ITGC)
We are part of two of the ITGC projects, GHOST and TARSAN.
Collaborative Research: Estimating Subglacial Effective Pressure with Active-source Seismic Data
Publications by research topics
Geophysical investigation of subglacial conditions
Clyne, E.R., S. Anandakrishnan, A. Muto, R.B. Alley, and D.E. Voigt (2020), Interpretation of topography and bed properties beneath Thwaites Glacier, West Antarctica using seismic reflection methods, Earth and Planetary Science Letters, 550, 116543, doi: 10.1016/j.epsl.2020.116543.
Jordan, T.A., D. Porter, K. Tinto, R. Millan, A. Muto, K. Hogan, R.D. Larter, A.G.C. Graham, and J.D. Paden (2020), New gravity-derived bathymetry for the Thwaites, Crosson, and Dotson ice shelves revealing two ice shelf populations, The Cryosphere, 14, 2869-2882, doi: 10.5194/tc-14-2869-2020.
Muto, A., R.B. Alley, B.R. Parizek, S. Anandakrishnan (2019), Bed-type variability and till (dis)continuity beneath Thwaites Glacier, West Antarctica, Annals of Glaciology, 60(80), 1-9, doi: 10.1017/aog.2019.32.
Muto, A., S. Anandakrishnan, R.B. Alley, H.J. Horgan, B.R. Parizek, S. Koellner, K. Christianson, and N. Holschuh (2019), Relating bed character and subglacial morphology using seismic data from Thwaites Glacier, West Antarctica, Earth and Planetary Science Letters, 507, 199-206, doi: 10.1016/j.epsl.2018.12.008.
Koellner, S., B.R. Parizek, R.B. Alley, A. Muto, and N. Holschuh (2019), The impact of spatially-variable basal properties on outlet glacier flow, Earth and Planetary Science Letters, 515, 200–208, doi: 10.1016/j.epsl.2019.03.026.
Alley, R. B., D. Pollard, B.R. Parizek, S. Anandakrishnan, M. Pourpoint, N.T. Stevens, J.A. MacGregor, K. Christianson, A. Muto, and N. Holschuh (2019), Possible role for tectonics in the evolving stability of the Greenland Ice Sheet, Journal of Geophysical Research: Earth Surface, 124, 97–115, doi: 10.1029/ 2018JF004714.
Riverman, K.L., R.B. Alley, S. Anandakrishnan, K. Christianson, N.D. Holschuh, B. Medley, A. Muto, and L.E. Peters (2019), Enhanced firn densification in high‐accumulation shear margins of the NE Greenland Ice Stream, Journal of Geophysical Research: Earth Surface, 124, 365–382, doi: 10.1029/2017JF00460.
Muto, A., L.E. Peters, K. Gohl, I. Sasgen, R.B. Alley, S. Anandakrishnan and K.L. Riverman (2016), Subglacial bathymetry and sediment distribution beneath Pine Island Glacier ice shelf modeled using aerogravity and in situ geophysical data: New results, Earth and Planetary Science Letters, 433, 63-75, doi: 10.1016/j.epsl.2015.10.037.
Alley, R.B., S. Anandakrishnan, K. Christianson, H.J. Horgan, A. Muto, B.R. Parizek, D. Pollard and R.T. Walker (2015), Oceanic Forcing of ice-sheet retreat: West Antarctica and more, The Annual Review of Earth and Planetary Sciences, 43, doi: 10.1146/annurev-earth-060614-105344.
Vallelonga, P., K. Christianson, R.B. Alley, S. Anandakrishnan, J.E.M. Christian, D. Dahl-Jensen, V. Gkinis, C. Holme, R.W. Jacobel, N.B. Karlsson, B.A. Keisling, S. Kipfstuhl, H.A. Kjær1, M.E.L. Kristensen, A. Muto, L.E. Peters, T. Popp, K.L. Riverman, A.M. Svensson, C. Tibulea1, B.M. Vinther, Y. Weng, and M. Winstrup (2014), Initial results from geophysical surveys and shallow coring of the Northeast Greenland Ice Stream (NEGIS), The Cryosphere, 8, 1275-1287, doi: 10.5194/tc-8-1275-2014.
Christianson, K., L.E. Peters, R.B. Alley, S. Anandakrishnan, R.W. Jacobel, K.L. Riverman, A. Muto and B.A. Keisling (2014), Dilatant till facilitates ice-stream flow in northeast Greenland, Earth and Planetary Science Letters, 401, 57-69, doi:10.1016/j.epsl.2014.05.060.
Keisling, B.A., K. Christianson, R.B. Alley, L.E. Peters, J.E.M. Christian, S. Anandakrishnan, K.L. Riverman, A. Muto and R.W. Jacobel (2014), Basal conditions and ice dynamics inferred from radar-derived internal stratigraphy of the northeast Greenland ice stream, Annals of Glaciology, 55(67), 127-137, doi: 10.3189/2014AoG67A090.
Muto, A., K. Christianson, H.J. Horgan, S. Anandakrishnan and R.B. Alley (2013), Bathymetry and geological structures beneath the Ross Ice Shelf at the mouth of Whillans Ice Stream, West Antarctica, modeled from ground-based gravity measurements, Journal of Geophysical Research: Solid Earth, 118, 4535-4546, doi: 10.1002/jgrb.50315.
Christianson, K., B.R. Parizek, R.B. Alley, H.J. Horgan, R.W. Jacobel, S. Anandakrishnan, B.J. Kiesling, B.D. Craig and A. Muto (2013), Ice sheet grounding zone stabilization due to till compaction, Geophysical Research Letters, 40, doi: 10.1002/2013GL057447.
Horgan, H.J., R.B. Alley, K. Christianson, R.W. Jacobel, S. Anandakrishnan, A. Muto, L.H. Beem and M.R. Siegfried (2013), Estuaries beneath ice sheets, Geology, 41, 1159-1162, doi: 10.1130/G34654.1.
Muto, A., S. Anandakrishnan and R.B. Alley (2013), Subglacial bathymetry beneath the Pine Island Glacier ice shelf from airborne gravity, constrained by autonomous underwater vehicle data, Annals of Glaciology, 54(64), 27-32, doi:10.3189/2013AoG64A110.
Geophysical imaging of subglacial features in the former Laurentide Ice Sheet
Zoet, L.K., A. Muto, J.E. Rawling III, and J.W. Attig (2019), The effects of tunnel channel formation on the Green Bay Lobe, Wisconsin, USA, Gemorphology, 324, 36-47, doi: 10.1016/j.geomorph.2018.09.021.
Antarctic grounding-line mapping
Christie, F.D.W., R.G. Bingham, N. Gourmelen, S.F.B. Tett, and A. Muto (2016), Four-decade record of pervasive grounding line retreat along the Bellingshausen margin of West Antarctica, Geophysical Research Letters, 43, doi:10.1002/2016GL068972.
Media coverage
Washington Post (June 1, 2016)
Science Daily (June 1, 2016)
Temple Now (July 12, 2016)
Ice-sheet surface processes and borehole paleothermometry
Scambos, T.A., G.G. Campbell, A. Pope, T. Haran, A. Muto, M. Lazzara, C.H. Reijmer, and M.R. van den Broeke (2018), Ultralow surface temperatures in East Antarctica from satellite thermal infrared mapping: The coldest places on Earth, Geophys. Res. Lett., 45, 6124–6133, doi:10.1029/ 2018GL078133.
Fegyveresi, J.M., R.B. Alley, A. Muto, A.J. Orsi, and M.K. Spencer (2018), Surface formation, preservation, and history of low-porosity crusts at the WAIS Divide site, West Antarctica, The Crysopshere, 12, 325-341, doi: 10.5194/tc-12-325-2018.
McGrath, D., W. Colgan, N. Bayou, A. Muto and K Steffen (2013), Recent warming at Summit, Greenland: Global context and implications, Geophysical Research Letters, 40, doi: 10.1002/grl.50456.
Zagorodnov, V., O. Nagornov, T.A. Scambos, A. Muto, E. Mosley-Thompson, E.C. Pettit, and S. Tyuflin (2012), Borehole temperatures reveal details of 20th century warming at Bruce Plateau, Antarctic Peninsula, The Cryosphere, 6, 675-686, doi: 10.5194/tc-6-675-2012.
Muto, A., T.A. Scambos, K. Steffen, A.G. Slater, G.D. Clow (2011), Recent surface temperature trends in the interior of East Antarctica from firn thermal profiles, Geophysical Research Letters, doi: 10.1029/2011GL048086.
Mass balance of mountain glaciers using microgravity method