

{"id":31,"date":"2015-07-01T21:24:43","date_gmt":"2015-07-02T01:24:43","guid":{"rendered":"https:\/\/sites.temple.edu\/polar\/?page_id=31"},"modified":"2026-02-02T10:36:19","modified_gmt":"2026-02-02T15:36:19","slug":"research","status":"publish","type":"page","link":"https:\/\/sites.temple.edu\/polar\/research\/","title":{"rendered":"RESEARCH"},"content":{"rendered":"<p><strong><span style=\"text-decoration: underline\">Current projects<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-562\" src=\"https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK-300x140.webp\" alt=\"\" width=\"300\" height=\"140\" srcset=\"https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK-300x140.webp 300w, https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK-1024x478.webp 1024w, https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK-768x358.webp 768w, https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK-360x168.webp 360w, https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK-100x47.webp 100w, https:\/\/sites.temple.edu\/polar\/files\/2026\/02\/Are\u0302te_Final_Logo_horizontal_BLACK.webp 1500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><a href=\"https:\/\/www.areteglaciers.org\/initiatives\">Subglacial effective stress from legacy data: Archiving and reinterpreting West Antarctic active-source seismic surveys<\/a><\/p>\n<p><a href=\"https:\/\/thwaitesglacier.org\/\">International Thwaites Glacier Collaborations (ITGC)<\/a><\/p>\n<p><a href=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/itgc-logo-color-white-background-295.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-471\" src=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/itgc-logo-color-white-background-295-276x300.png\" alt=\"\" width=\"276\" height=\"300\" srcset=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/itgc-logo-color-white-background-295-276x300.png 276w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/itgc-logo-color-white-background-295-92x100.png 92w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/itgc-logo-color-white-background-295.png 295w\" sizes=\"auto, (max-width: 276px) 100vw, 276px\" \/><\/a><a href=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-477\" src=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF.jpeg\" alt=\"\" width=\"150\" height=\"151\" srcset=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF.jpeg 224w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-150x150.jpeg 150w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-100x100.jpeg 100w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>We are part of two of the ITGC projects, <a href=\"https:\/\/thwaitesglacier.org\/projects\/ghost\">GHOST<\/a> and <a href=\"https:\/\/thwaitesglacier.org\/projects\/tarsan\">TARSAN.<\/a><\/p>\n<p><a href=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-477\" src=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-150x150.jpeg\" alt=\"\" width=\"100\" height=\"100\" srcset=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-150x150.jpeg 150w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-100x100.jpeg 100w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF.jpeg 224w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/><\/a><a href=\"https:\/\/www.nsf.gov\/awardsearch\/showAward?AWD_ID=2048324&amp;HistoricalAwards=false\">Collaborative Research: Estimating Subglacial Effective Pressure with Active-source Seismic Data<\/a><\/p>\n<p><a href=\"https:\/\/www.nsf.gov\/awardsearch\/show-award?AWD_ID=2322059\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-477\" src=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-150x150.jpeg\" alt=\"\" width=\"100\" height=\"100\" srcset=\"https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-150x150.jpeg 150w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF-100x100.jpeg 100w, https:\/\/sites.temple.edu\/polar\/files\/2022\/04\/NSF.jpeg 224w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/>Collaborative Research: Ideas Lab: ETAUS Meshed Observations of THE Remote Subsurface with Heterogeneous Intelligent Platforms (MOTHERSHIP)<\/a><\/p>\n<p><strong>Publications by research topics<\/strong><\/p>\n<p><span style=\"text-decoration: underline\"><strong><em>Geophysical investigation of subglacial conditions<\/em><\/strong><\/span><\/p>\n<p>Clyne, E.R., S. Anandakrishnan, <strong>A. Muto<\/strong>, R.B. Alley, and D.E. Voigt (2020), Interpretation of topography and bed properties beneath Thwaites Glacier, West Antarctica using seismic reflection methods, <em>Earth and Planetary Science Letters<\/em>, 550, 116543, doi: <a href=\"https:\/\/doi.org\/10.1016\/j.epsl.2020.116543\">10.1016\/j.epsl.2020.116543<\/a>.<\/p>\n<p>Jordan, T.A., D. Porter, K. Tinto, R. Millan, <strong>A. Muto<\/strong>, 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, <em>The Cryosphere<\/em>, 14, 2869-2882, doi: <a href=\"https:\/\/doi.org\/10.5194\/tc-14-2869-2020\">10.5194\/tc-14-2869-2020<\/a>.<\/p>\n<p><strong>Muto, A.<\/strong>, 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, <a href=\"https:\/\/doi.org\/10.1017\/aog.2019.32\">doi: 10.1017\/aog.2019.32<\/a>.<\/p>\n<p><strong>Muto, A.<\/strong>, 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, <em>Earth and Planetary Science Letters<\/em>, 507, 199-206, doi: <a class=\"doi\" title=\"Persistent link using digital object identifier\" href=\"https:\/\/doi.org\/10.1016\/j.epsl.2018.12.008\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Persistent link using digital object identifier\">10.1016\/j.epsl.2018.12.008.<\/a><\/p>\n<p>Koellner, S., B.R. Parizek, R.B. Alley, <strong>A. Muto<\/strong>, and N. Holschuh (2019), The impact of spatially-variable basal properties on outlet glacier flow,<em> Earth and Planetary Science Letters<\/em>, 515, 200\u2013208, doi: <span style=\"color: #3366ff\"><a style=\"color: #3366ff\" href=\"https:\/\/doi.org\/10.1016\/j.epsl.2019.03.026\">10.1016\/j.epsl.2019.03.026.<\/a><\/span><\/p>\n<p>Alley, R. B., D. Pollard, B.R. Parizek, S. Anandakrishnan, M. Pourpoint, N.T. Stevens, J.A. MacGregor, K. Christianson, <strong>A. Muto<\/strong>, and N. Holschuh (2019), Possible role for tectonics in the evolving stability of the Greenland Ice Sheet, <em>Journal of Geophysical Research: Earth Surface<\/em>, 124, 97\u2013115, doi: <a href=\"https:\/\/doi.org\/10.1029\/ 2018JF004714\">10.1029\/ 2018JF004714<\/a>.<\/p>\n<p>Riverman, K.L., R.B. Alley, S. Anandakrishnan, K. Christianson, N.D. Holschuh, B. Medley, <strong>A. Muto<\/strong>, and L.E. Peters (2019), Enhanced firn densification in high\u2010accumulation shear margins of the NE Greenland Ice Stream, <em>Journal of Geophysical Research: Earth Surface<\/em>, 124, 365\u2013382, doi:<span style=\"color: #3366ff\"> <a style=\"color: #3366ff\" href=\"https:\/\/doi.org\/10.1029\/2017JF004604\">10.1029\/2017JF00460<\/a><\/span>.<\/p>\n<p><strong>Muto, A.<\/strong>, 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,\u00a0<em>Earth and Planetary Science Letters<\/em>, 433, 63-75, doi:\u00a0<a id=\"ddDoi\" class=\"S_C_ddDoi\" href=\"http:\/\/dx.doi.org\/10.1016\/j.epsl.2015.10.037\" target=\"_blank\" rel=\"noopener noreferrer\">10.1016\/j.epsl.2015.10.037<\/a>.<\/p>\n<p>Alley, R.B., S. Anandakrishnan, K. Christianson, H.J. Horgan, <strong>A. Muto<\/strong>, B.R. Parizek, D. Pollard and R.T. Walker (2015), Oceanic Forcing of ice-sheet retreat: West Antarctica and more, <em>The\u00a0<\/em><em>Annual Review of Earth and Planetary Sciences<\/em>, 43, doi: <a href=\"http:\/\/www.annualreviews.org\/doi\/abs\/10.1146\/annurev-earth-060614-105344\" target=\"_blank\" rel=\"noopener noreferrer\">10.1146\/annurev-earth-060614-105344<\/a>.<\/p>\n<p>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. Kj\u00e6r1, M.E.L. Kristensen, <strong>A. Muto<\/strong>, 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), <em>The Cryosphere<\/em>, 8, 1275-1287, doi: <a href=\"http:\/\/www.the-cryosphere.net\/8\/1275\/2014\/tc-8-1275-2014.html\" target=\"_blank\" rel=\"noopener noreferrer\">10.5194\/tc-8-1275-2014<\/a>.<\/p>\n<p>Christianson, K., L.E. Peters, R.B. Alley, S. Anandakrishnan, R.W. Jacobel, K.L. Riverman,\u00a0<strong>A. Muto<\/strong> and B.A. Keisling (2014), Dilatant till facilitates ice-stream flow in northeast Greenland, <em>Earth and Planetary Science Letters<\/em>, 401, 57-69, doi:<a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0012821X14003768\" target=\"_blank\" rel=\"noopener noreferrer\">10.1016\/j.epsl.2014.05.060<\/a>.<\/p>\n<p>Keisling, B.A., K. Christianson, R.B. Alley, L.E. Peters, J.E.M. Christian, S. Anandakrishnan, K.L. Riverman, <strong>A. Muto<\/strong> and R.W. Jacobel (2014), Basal conditions and ice dynamics inferred from radar-derived internal stratigraphy of the northeast Greenland ice stream, <em>Annals of Glaciology<\/em>, 55(67), 127-137, doi: <a href=\"http:\/\/www.ingentaconnect.com\/content\/igsoc\/agl\/2014\/00000055\/00000067\/art00015?token=005d1faa0b969b791f892bd573d257025704423442f5f31254d573a637c4e7547543c7e386f642f466f84add65531\" target=\"_blank\" rel=\"noopener noreferrer\">10.3189\/2014AoG67A090<\/a>.<\/p>\n<p><strong>Muto, A.<\/strong>, 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, <em>Journal of Geophysical Research: Solid Earth, <\/em>118, 4535-4546, doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jgrb.50315\/abstract\" target=\"_blank\" rel=\"noopener noreferrer\">10.1002\/jgrb.50315<\/a>.<\/p>\n<p>Christianson, K., B.R. Parizek, R.B. Alley, H.J. Horgan, R.W. Jacobel, S. Anandakrishnan, B.J. Kiesling, B.D. Craig and <strong>A. Muto <\/strong>(2013), Ice sheet grounding zone stabilization due to till compaction, <em>Geophysical Research Letters,<\/em>\u00a040, doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/2013GL057447\/abstract\" target=\"_blank\" rel=\"noopener noreferrer\">10.1002\/2013GL057447<\/a>.<\/p>\n<p>Horgan, H.J., R.B. Alley, K. Christianson, R.W. Jacobel, S. Anandakrishnan, <strong>A. Muto<\/strong>, L.H. Beem and M.R. Siegfried (2013), Estuaries beneath ice sheets, <em>Geology<\/em>, 41, 1159-1162, doi: <a href=\"http:\/\/geology.gsapubs.org\/content\/early\/2013\/09\/06\/G34654.1.abstract\" target=\"_blank\" rel=\"noopener noreferrer\">10.1130\/G34654.1<\/a>.<\/p>\n<p><strong>Muto, A<\/strong>., 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, <em>Annals of Glaciology<\/em>, 54(64), 27-32, doi:<a href=\"http:\/\/www.ingentaconnect.com\/content\/igsoc\/agl\/2013\/00000054\/00000064\/art00004?token=004b1572cd56739412f415d766b25627b3a2b427b5a42432530482972715a614f6d4e227a0c\" target=\"_blank\" rel=\"noopener noreferrer\">10.3189\/2013AoG64A110<\/a>.<\/p>\n<p><strong><em><span style=\"text-decoration: underline\">Geophysical imaging of subglacial features in the former Laurentide Ice Sheet<\/span><\/em><\/strong><\/p>\n<p>Zoet, L.K., <strong>A. Muto<\/strong>, J.E. Rawling III, and J.W. Attig (2019), The effects of tunnel channel formation on the Green Bay Lobe, Wisconsin, USA, <em>Gemorphology, <\/em>324, 36-47, doi: <a href=\"https:\/\/doi.org\/10.1016\/j.geomorph.2018.09.021\">10.1016\/j.geomorph.2018.09.021<\/a>.<\/p>\n<p><span style=\"text-decoration: underline\"><em><strong>Antarctic grounding-line mapping<\/strong><\/em><\/span><\/p>\n<div class=\"page\" title=\"Page 1\">\n<div class=\"layoutArea\">\n<div class=\"column\">\n<p>Christie, F.D.W., R.G. Bingham, N. Gourmelen, S.F.B. Tett, and <strong>A. Muto<\/strong> (2016), Four-decade record of pervasive grounding line retreat along the Bellingshausen margin of West Antarctica, <em>Geophysical Research Letters<\/em>, 43, doi:<a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/2016GL068972\/full\" target=\"_blank\" rel=\"noopener noreferrer\">10.1002\/2016GL068972<\/a>.<\/p>\n<p><em>Media coverage<\/em><\/p>\n<p><a href=\"https:\/\/www.washingtonpost.com\/news\/energy-environment\/wp\/2016\/06\/01\/scientists-have-found-yet-another-part-of-antarctica-that-may-be-in-trouble\/?utm_term=.dbd78dcc8dd7\" target=\"_blank\" rel=\"noopener noreferrer\">Washington Post<\/a> (June 1, 2016)<\/p>\n<p><a href=\"https:\/\/www.sciencedaily.com\/releases\/2016\/06\/160601110736.htm\" target=\"_blank\" rel=\"noopener noreferrer\">Science Daily<\/a>\u00a0(June 1, 2016)<\/p>\n<p><a href=\"https:\/\/news.temple.edu\/news\/2016-07-12\/antarctic-images-reveal-four-decades-ice-loss\" target=\"_blank\" rel=\"noopener noreferrer\">Temple Now<\/a> (July 12, 2016)<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><span style=\"text-decoration: underline\"><strong><em>Ice-sheet surface processes and borehole paleothermometry<\/em><\/strong><\/span><\/p>\n<p>Scambos, T.A., G.G. Campbell, A. Pope, T. Haran, <strong>A. Muto<\/strong>, 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, <em>Geophys. Res. Lett.<\/em>, 45, 6124\u20136133, doi:<span style=\"color: #486ee0\"><a style=\"color: #486ee0\" href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/10.1029\/2018GL078133\" target=\"_blank\" rel=\"noopener noreferrer\">10.1029\/ 2018GL078133<\/a><\/span>.<\/p>\n<p>Fegyveresi, J.M., R.B. Alley, <strong>A. Muto<\/strong>, A.J. Orsi, and M.K. Spencer (2018), Surface formation, preservation, and history of low-porosity crusts at the WAIS Divide site, West Antarctica, <em>The Crysopshere<\/em>, 12, 325-341, doi: <a href=\"https:\/\/www.the-cryosphere.net\/12\/325\/2018\/\" target=\"_blank\" rel=\"noopener noreferrer\">10.5194\/tc-12-325-2018<\/a>.<\/p>\n<p>McGrath, D., W. Colgan, N. Bayou, <strong>A. Muto<\/strong> and K Steffen (2013), Recent warming at Summit, Greenland: Global context and implications, <em>Geophysical Research Letters<\/em>, 40, doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/grl.50456\/abstract\" target=\"_blank\" rel=\"noopener noreferrer\">10.1002\/grl.50456<\/a>.<\/p>\n<p>Zagorodnov,\u00a0V., O. Nagornov, T.A. Scambos,\u00a0<strong>A. Muto<\/strong>, E. Mosley-Thompson,\u00a0E.C. Pettit, and S. Tyuflin (2012), Borehole temperatures reveal details of 20th century warming at Bruce Plateau, Antarctic Peninsula, <em>The Cryosphere<\/em>, 6, 675-686, doi: <a href=\"http:\/\/www.the-cryosphere.net\/6\/675\/2012\/tc-6-675-2012.html\" target=\"_blank\" rel=\"noopener noreferrer\">10.5194\/tc-6-675-2012<\/a>.<\/p>\n<p><strong>Muto, A.<\/strong>, 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,\u00a0<em>Geophysical Research Letters<\/em>, doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1029\/2011GL048086\/abstract\" target=\"_blank\" rel=\"noopener noreferrer\">10.1029\/2011GL048086<\/a>.<\/p>\n<p><span style=\"text-decoration: underline\"><strong><em>Mass balance of mountain glaciers using microgravity method<\/em><\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Current projects Subglacial effective stress from legacy data: Archiving and reinterpreting West Antarctic active-source seismic surveys 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 Collaborative Research: Ideas Lab: ETAUS Meshed Observations of THE Remote Subsurface with&hellip; <a class=\"more-link\" href=\"https:\/\/sites.temple.edu\/polar\/research\/\">Continue Reading RESEARCH<\/a><\/p>\n","protected":false},"author":7566,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-31","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/pages\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/users\/7566"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/comments?post=31"}],"version-history":[{"count":5,"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/pages\/31\/revisions"}],"predecessor-version":[{"id":570,"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/pages\/31\/revisions\/570"}],"wp:attachment":[{"href":"https:\/\/sites.temple.edu\/polar\/wp-json\/wp\/v2\/media?parent=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}