C026
Observations and Models of Glacier Change

Session ID#: 156864

Session Description:
As glaciers respond to environmental forcing, they reveal clues about the physics that govern their response, change rates of sea level rise, alter geohazard risk, and modify downstream ecosystems and water availability. There has been a recent explosion of data and methods for monitoring glaciers from space that is only accelerating with the launch of NASA’s second-generation laser altimeter (ICESat-2) and gravity (GRACE-FO) missions. At the same time, rapid advances in machine learning, stereo processing, real-time field measurements, and modeling of regional climate empower precise time series of glacier change and new insight. In support of the IACS Working Groups on “Regional Assessments of Glacier MAss Change (RAGMAC)” and “Randolph Glacier Inventory (RGI) and its role in future glacier monitoring and GLIMS”, this session unites in-situ, remote sensing, and modeling studies of glacier change outside of the ice sheets, from regional to global scales, with the aim of improving understanding of physical processes.
Index Terms:

0720 Glaciers [CRYOSPHERE]
0762 Mass balance [CRYOSPHERE]
0776 Glaciology [CRYOSPHERE]
0798 Modeling [CRYOSPHERE]

Primary Convener:  Caitlyn Florentine, USGS Northern Rocky Mountain Science Center, Bozeman, United States
Conveners:  Alex S Gardner, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Brian Menounos, University of Northern British Columbia, Geography Earth and Environmental Sciences, Prince George, BC, Canada and Bruce H Raup, NSIDC, CIRES, University of Colorado at Boulder, Boulder, CO, United States
 
RAGMAC & GLAMBIE – Initiatives for inter-comparisons exercise of regional and global glacier mass changes (1051414)
Noel Gourmelen1, Michael Zemp2, Livia Jakob3, Ines Dussaillant2, Samuel Urs Nussbaumer4, Regine Hock5, Etienne Berthier6, Bert Wouters7, Alex S Gardner8, Geir Moholdt9, Fanny Brun10 and Matthias H. Braun11, (1)University of Edinburgh, School of Geosciences, Edinburgh, EH9, United Kingdom, (2)University of Zurich, Zurich, Switzerland, (3)Earthwave Ltd, Edinburgh, United Kingdom, (4)University of Zurich, Bern, Switzerland, (5)Univ of AK-Geophysical Inst, Fairbanks, AK, United States, (6)LEGOS, Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France, (7)IMAU/TU Delft, Utrecht/Delft, Netherlands, (8)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (9)Norwegian Polar Institute, Section for Geology and Geophysics, Tromsø, Norway, (10)Universite de Grenoble, Grenoble, France, (11)University of Erlangen-Nuremberg, Erlangen, Germany
 
Accuracy Assessment and Validation of Common Satellite-Derived Glacier Velocity Products Using Field-Measured GPS Displacement on the Juneau Icefield, Alaska (1051920)
Joshua Kelly, California State University Los Angeles, Department of Geosciences and Environment, Los Angeles, United States, Scott McGee, Juneau Icefield Research Program, Seattle, United States and Mark Hehlen, University of Cambridge, Department of Geography, Cambridge, United Kingdom
 
Measuring Vertical Strain Rates on the Begguya Summit Plateau Using the Autonomous Phase-Sensitive Radio Echo Sounder (ApRES) (1053406)
Ingalise Kindstedt1,2, Emma Erwin1,3, Scott Steven Braddock4,5, Liam Reed Kirkpatrick6, Tun Jan Young7, Seth W Campbell3,8, Dominic Winski2,8, Karl J Kreutz2,8 and Erich C Osterberg9, (1)University of Maine, Climate Change Institute, Orono, United States, (2)University of Maine, School of Earth and Climate Sciences, Orono, United States, (3)University of Maine, Earth and Climate Sciences and Climate Change Institute, Orono, United States, (4)University of Maine, Earth and Climate Sciences and Climate Change Institute, Orono, ME, United States, (5)University of Maine, Climate Change Institute, Orono, ME, United States, (6)University of Washington Seattle Campus, Seattle, United States, (7)Scott Polar Research Institute, Cambridge, United Kingdom, (8)University of Maine, Climate Change Institute and School of Earth and Climate Sciences, Orono, United States, (9)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States
 
Geodetic mass balance of very small glaciers in the northern Japanese Alps from 2015 to 2022 (1054410)
Kenshiro Arie and Chiyuki Narama, Niigata University, Niigata, Japan
 
Foehn winds drive surface ablation of a Patagonian glacier (1054596)
Masahiro Minowa, Hokkaido University, Graduate School of Environmental Science, Sapporo, Japan, Koji Fujita, Nagoya University, Graduate School of Environmental Studies, Nagoya, Japan and Pedro Skvarca, Glaciarium-Glacier Interpretive Center, El Calafate, Argentina
 
Global Glacier Trends from Radar Altimetry (1058165)
Livia Jakob1, Noel Gourmelen2, Martin Ewart1 and Alex Horton1, (1)Earthwave Ltd, Edinburgh, United Kingdom, (2)University of Edinburgh, School of Geosciences, Edinburgh, United Kingdom
 
Self-consistent Estimates of Glacier Thickness Based on the Perfect Plastic Approximation and a Handful of Digital Elevation Models (1062599)
Tanner May and Jeremy N Bassis, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States
 
21st Century Surface Area and Volume Change for Ecuador’s Glacierized Volcanoes (1086021)
Jeff La Frenierre, Gustavus Adolphus College, Department of Geography, Saint Peter, MN, United States, Laura Boehm Vock, St. Olaf College, Math, Statistics and Computer Science, Northfield, United States and Maximillian S Van Wyk de Vries, University of Minnesota Twin Cities, Department of Earth and Environmental Sciences and Saint Anthony Falls Laboratory, Minneapolis, United States
 
Accelerated Retreat of Greenland’s Peripheral Glaciers in the Twenty-First Century (1090929)
Laura J Larocca1,2, Max Twining-Ward3, Yarrow Axford4, Kristian K Kjeldsen5, Signe Hillerup Larsen5, Gregor Luetzenburg3, Andreas Westergaard-Nielsen3 and Anders Bjork3, (1)Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States, (2)Northwestern University, Earth and Planetary Sciences, Evanston, United States, (3)University of Copenhagen, Department of Geosciences and Natural Resource Management, København K, Denmark, (4)Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States, (5)Geological Survey of Denmark and Greenland, København K, Denmark
 
Automated mapping of seasonal snowlines on glaciers in the North American Cordillera using PlanetScope imagery (1091584)
Rainey Aberle1, Ellyn M Enderlin2, Shad O'Neel3, Alejandro N Flores2 and Hans-Peter Marshall2, (1)Boise State University, Boise, ID, United States, (2)Boise State University, Department of Geosciences, Boise, ID, United States, (3)U.S. Army Corps of Engineers, Cold Regions Research and Engineering Laboratory, Boise, United States
 
Assessing the vulnerability of the Juneau Icefield to atmospheric warming (1095345)
Jessica Badgeley, University of Washington, Department of Earth and Space Sciences, Seattle, United States, Lili Weir, Colorado College, Department of Organismal Biology and Ecology, Colorado Springs, United States, Tory Peters, University of Utah, Salt Lake City, United States, Xander Uyttendaele, University of Pennsylvania, Philadelphia, United States, Alicia Dibble, University of Alaska Southeast, Juneau, United States, Jonathan Benoit, Brown University, Providence, United States and Emma Wilkinson, Utah State University, Logan, United States
 
Investigating Glacier Retreat Using the Continuous Change Detection (CCD) Algorithm: A Case Study of USGS Benchmark Glaciers (1097004)
Donna Viola, KBR, Contractor to the USGS Earth Resources Observation and Science (EROS) Center, Sioux Falls, United States and Heather Tollerud, USGS Earth Resources Observation and Science (EROS) Center, Sioux Falls, SD, United States
 
Monitoring New Zealand Glacier Change through In-Situ, Remote Sensing, and Modeling Efforts (1099464)
Lauren Vargo1, Andrew Lorrey2, Brian Anderson1, Nicolas J Cullen3, Huw Joseph Horgan1, Tim Kerr4, Andrew Mackintosh5, Heather Purdie6, Pascal J Sirguey7, Shaun Eaves1, Gregor Macara2, Andrew Willsman2 and Christian Zammit2, (1)Victoria University of Wellington, Antarctic Research Centre, Wellington, New Zealand, (2)NIWA National Institute of Water and Atmospheric Research, Auckland, New Zealand, (3)University of Otago, Department of Geography, Dunedin, New Zealand, (4)Rainfall.NZ, Christchurch, New Zealand, (5)Monash University, School of Earth, Atmosphere and Environment, Melbourne, Australia, (6)University of Canterbury, Christchurch, New Zealand, (7)University of Otago, School of Surveying, Dunedin, New Zealand
 
Satellite Altimetry Observes Indistinctive Glacier Mass Loss across High Mountain Asia during the Past Two Decades Caused by the Karakoram Anomaly (1110041)
Fanyu Zhao, Di Long, Xingdong Li and Pengfei Han, Tsinghua University, Department of Hydraulic Engineering, Beijing, China
 
Decadal Area Changes of Arctic Glaciers using Object-Based Image Analysis in Google Earth Engine (1111417)
Asim Ali1, Paul Dunlop1, Sonya Coleman2, Dermot Kerr2, Robert McNabb1 and Riko Noormets3, (1)School of Geography and Environmental Sciences, Ulster University, UK, Coleraine, United Kingdom, (2)School of Computing, Engineering, and Intelligent Systems, Ulster University, UK, Londonderry, United Kingdom, (3)School of Marine, Geology, and Geophysics, University Centre in Svalbard, Longyearbyen, Norway
 
Dynamic glacier or stagnant ice patch? Assessing detection limits of glacier motion in Alaska and western North America (1114355)
Jacob Downs, USGS Northern Rocky Mountain Science Center, Red Lodge, United States, Daniel McGrath, Colorado State University, Department of Geosciences, Fort Collins, United States, Caitlyn Florentine, USGS Northern Rocky Mountain Science Center, Bozeman, United States and Louis Sass, USGS Alaska Science Center, Anchorage, AK, United States
 
North Atlantic cooling is slowing down mass loss of Icelandic glaciers (1114759)
Brice Noel1, Gudfinna Adalgeirsdottir2, Finnur Pálsson2, Bert Wouters3, Stef Lhermitte4, Jan Haacker5 and Michiel R van den Broeke1, (1)Utrecht University, Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (2)University of Iceland, Reykjavik, Iceland, (3)IMAU/TU Delft, Utrecht/Delft, Netherlands, (4)Delft University of Technology, Geoscience and Remote Sensing, Delft, Netherlands, (5)Delft University of Technology, Department of Geoscience & Remote Sensing, Delft, Netherlands
 
Deriving the Climatic Mass Balance Gradients of Alaskan Glaciers through the Integration of Field Measurements and Remote Sensing (1119218)
Albin Wells1, David Rounce1, Louis Sass2, Caitlyn Florentine3, Che-yu Lin1 and Katherine Flanigan1, (1)Carnegie Mellon University, Civil and Environmental Engineering, Pittsburgh, United States, (2)USGS Alaska Science Center, Anchorage, AK, United States, (3)USGS Northern Rocky Mountain Science Center, Bozeman, United States
 
Terrestrial Radar Interferometry on the Juneau Icefield (1127827)
Hugh Shields, Princeton University, Princeton, United States, Gianluca Lagnese, SISSA, Trieste, Italy, Jeff Johnson, University of Maine, Orono, United States, Andreas Henz, ETH Zurich, Zurich, Switzerland, Madeleine Schmittenberg, Imperial College London, London, SW7, United Kingdom, Ryan Cassotto, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Sarah Wells-Moran, Wellesley College, Wellesley, MA, United States and Carolyn Lober, Brown University, Providence, United States
 
Small Glacier Retreat and its Impact on the Cordillera Real, Bolivia (1139164)
Eleanor Broglie, University of Illinois at Chicago, Chicago, IL, United States and Andrew Malone, Univ of Chicago, Chicago, IL, United States
 
The climatic fingerprint of mass balance extremes in the Southern Alps (1139696)
Nariefa Abrahim, University of Otago, Dunedin, New Zealand, Nicolas J Cullen, University of Otago, Department of Geography, Dunedin, New Zealand, Jonathan P Conway, National Institute of Water and Atmospheric Research, Lauder, New Zealand and Pascal J Sirguey, University of Otago, School of Surveying, Dunedin, New Zealand
 
Autumn Inflow of Atlantic Water Drives Seasonal Retreat of Glacier Fronts on the Northern Barents Sea Margin of Svalbard (1148261)
Øyvind Lundesgaard1, Geir Moholdt2, Joséphine Maton2, David Sutherland3 and Louise Steffensen Schmidt4, (1)Norwegian Polar Institute, Section for Oceans and Sea Ice, Tromsø, Norway, (2)Norwegian Polar Institute, Section for Geology and Geophysics, Tromsø, Norway, (3)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (4)University of Oslo, Section of Physical geography and Hydrology, Oslo, Norway
 
Fully automated glacier mapping: A new chapter in the long history of mapping glaciers (Invited) (1152657)
Umesh K Haritashya, University of Dayton, Dayton, OH, United States and Zhiyuan Xie, University of Dayton, Department of Electrical and Computer Engineering, Dayton, United States; GeneSense Technology Inc., Shanghai, China
 
Spatial Variations in Terminus Stability for Greenland’s Peripheral Marine-Terminating Glaciers 1999 - 2021 (1153192)
Phoebe Kinzelman, Boise State University, Boise, ID, United States, Ellyn M Enderlin, Boise State University, Department of Geosciences, Boise, ID, United States and Julia Liu, Boise State University, Geosciences, Boise, ID, United States
 
Glacier dynamics and Changes in Bagrot catchments Using In-situ measurements coupled with Remote Sensing, Northern Pakistan (1153710)
Muzammil Hassan1, Shaukat Ali1, Javed Hassan2 and Wajid Hassan3, (1)Karakoram International University, Department of Environmental Sciences, Gilgit, Pakistan, (2)Technical University of Denmark, Kgs. Lyngby, Denmark, (3)China–Pakistan Joint Research Center on Earth Sciences, Islamabad, Pakistan
 
High Mountain Asia Glacier Sensitivity and Transient Response to Climate Change (1156158)
Summer Rupper1, Simon Brewer2, Durban G Keeler2,3, Richard R Forster4, Leigh A Stearns5 and Joerg Schaefer6, (1)University of Utah, Department of Geography, Salt Lake City, UT, United States, (2)University of Utah, Department of Geography, Salt Lake City, United States, (3)AccuWeather, State College, United States, (4)Department of Geography, University of Utah, Salt Lake City, UT, United States, (5)University of Kansas, Department of Geology, Lawrence, KS, United States, (6)Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States
 
Accelerating rates of glacier change and topographic controls, Glacier National Park, MT, USA: 1966-2021 (1156755)
Chris McNeil1, Friedrich Knuth2, Chelsea Martin-Mikle3, Caitlyn Florentine4, Brian Menounos5, Louis Sass1, David E Shean6 and Shad O'Neel7, (1)USGS Alaska Science Center, Anchorage, AK, United States, (2)Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, NJ, United States, (3)USGS Northern Rocky Mountain Science Center, West Glacier, MT, United States, (4)University of Montana, Missoula, United States, (5)University of Northern British Columbia, Geography Earth and Environmental Sciences, Prince George, BC, Canada, (6)University of Washington, Department of Civil and Environmental Engineering, Seattle, United States, (7)U.S. Army Corps of Engineers, Cold Regions Research and Engineering Laboratory, Boise, United States
 
Automated detection of glacier cover changes in the Upper Indus Basin of northern Pakistan (1160545)
Saeed Akhtar Khan, University of Bayreuth, Department of Earth Sciences, Bayreuth, Germany, Panagiotis D. Oikonomou, University of Vermont, EPSCOR, Burlington, United States; University of Vermont, Department of Community Development and Applied Economics, Burlington, United States and Asim Zia, University of Vermont, Department of Community Development and Applied Economics & Department of Computer Science, Burlington, VT, United States; University of Vermont, Institute for Environmental Diplomacy and Security, Burlington, United States
 
Comparison and Cross-validation of Scalable Glacier Delineation Algorithms for U.S. Northwest Glaciers (1161734)
Chen Xin, University of California Los Angeles, Department of Geography, Los Angeles, CA, United States
 
Impact of Glacier Changes and Permafrost Distribution on Debris Flows in Badswat and Shishkat catchments, Northern Pakistan (1162051)
Wajid Hassan1, Fenghuan Su2, Weiming Liu3, Javed Hassan4, Nazir Ahmed Bazai5, Muzammil Hassan6, Wang Hao2, Daniel Garcia-Castellanos7 and Yang Zewen2, (1)China–Pakistan Joint Research Center on Earth Sciences, Islamabad, Pakistan, (2)IMHE Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China, (3)CAS Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China, (4)Technical University of Denmark, Kgs. Lyngby, Denmark, (5)Key Laboratory of Mountain Hazards and Earth Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China, (6)Karakoram International University, Department of Environmental Sciences, Gilgit, Pakistan, (7)Geosciences Barcelona, CSIC, Barcelona, Spain
 
High resolution estimates of surface mass loss over debris-covered glaciers in High-Mountain Asia from VHR stereo satellite imagery (1166672)
Shashank Bhushan1, David E Shean2, David Rounce3 and J Michelle Hu2, (1)University of Washington, Civil & Environmental Engineering, Seattle, WA, United States, (2)University of Washington, Department of Civil and Environmental Engineering, Seattle, United States, (3)Carnegie Mellon University, Civil and Environmental Engineering, Pittsburgh, United States
 
Geodetic Mass Balance at Universidad Glacier in Central Chile Using Historical Chilean Aerial Photogrammetry DEM, and SRTM Satellite Imagery Co-registration. (1169383)
Hazem Mahmoud, University of Texas at San Antonio, Department of Earth and Planetary Sciences, San Antonio, TX, United States, Alfonso Fernández, Universidad de Concepción, Geography, Concepción, Chile, Hongjie Xie, University of Texas at San Antonio, Department of Earth and Planetary Sciences, San Antonio, United States, Marcelo A Somos-Valenzuela, University of La Frontera, Butamallin Research Center for Global Change, Temuco, Chile, James McPhee, University of Chile, Departamento de Geología, Santiago, Chile, David Farías, University of Erlangen-Nuremberg, Erlangen, Germany and Christophe Kinnard, University of Quebec at Trois-Rivieres UQTR, Environmental Sciences, Trois-Rivières, QC, Canada
 
A Spatially Holistic Approach to Quantifying Glacier Mass Change in the Karakoram (1172695)
Cameron Markovsky, University of Utah, Department of Geography, Salt Lake City, United States, Summer Rupper, University of Utah, Department of Geography, Salt Lake City, UT, United States and Durban G Keeler, AccuWeather, State College, United States
 
New Data and Increased Automation Lead to Better Quality for GLIMS and RGI Glacier Data Sets (1178278)
Bruce H Raup, NSIDC, CIRES, University of Colorado at Boulder, Boulder, CO, United States, Fabien Maussion, University of Innsbruck, Innsbruck, Austria, Frank Paul, University of Zurich, Zurich, Switzerland, Etienne Berthier, LEGOS, Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France, Tobias Bolch, University of St Andrews, School of Geography and Sustainable development, St Andrews, United Kingdom and Adina Racoviteanu, Laboratoire de Glaciologie et Géophysique de l'Environnement, Saint-Martin-d'Hères, France
 
Comparison of Temperature-index Mass balance Models in Climate Change conditions for Saskatchewan glacier (1179760)
Lisa Michaud, Organization Not Listed, Environmental sciences, Trois-Rivières, QC, Canada and Christophe Kinnard, Université du Québec à Trois-Rivières, Environmental Sciences, Trois-Rivières, QC, Canada
 
Improvements in monitoring supraglacial glacier debris cover change in the Himalaya-Karakoram (1189178)
Matthew Olson, Utah Valley University, Orem, UT, United States, Summer Rupper, University of Utah, Department of Geography, Salt Lake City, UT, United States and Richard R Forster, Department of Geography, University of Utah, Salt Lake City, UT, United States
 
Spatiotemporal Variability in Snow and Glacier Meltwater across Largely Ungauged Headwaters of Major Rivers in South and East Asia (1189489)
Di Long1, Pengfei Han1, Qi Huang1, Bridget R Scanlon2, Glen M MacDonald3, Guangqian Wang4, Chunhong Hu5 and Yoshihide Wada6, (1)Tsinghua University, Department of Hydraulic Engineering, Beijing, China, (2)University of Texas at Austin, Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States, (3)UCLA, Los Angeles, CA, United States, (4)Tsinghua University, State Key Laboratory of Hydroscience and Engineering, Beijing, China, (5)China Institute of Water Resources and Hydropower Research, Beijing, China, (6)International Institute for Applied Systems Analysis, Laxenburg, Austria
 
Lessons Learned From Quantifying the Propagation of Traveling Waves on Columbia Glacier, Alaska (1191461)
Max Filter, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, Bryan V Riel, Zhejiang University, School of Earth Sciences, Hangzhou, China and Brent Minchew, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Deep Learning Based Automated Detection and Segmentation of Glacial Lakes (1191557)
Alison Hardie and Umesh K Haritashya, University of Dayton, Dayton, OH, United States
 
Using Remote Sensing Data to Assess Mass-Balance and Surface Area Change of the Ice Cap at Cayambe Volcano, Ecuador and Glaciar Olvidado in the Southern Patagonia Icefield. (1194589)
Marissa Saltos, Yachay Tech University, School of Earth Sciences, Energy and Environment, Urcuqui, Ecuador and Anna E Foster, Yachay Tech University, School of Earth Sciences, Energy and Environment, Urcuquí, Ecuador
 
Variation in Average Surface Velocity Estimation of Tidal and Mountain glacier using optical and SAR microwave Remote Sensing. (1195353)
Akshay Rai Bansal, Punjab Remote Sensing Centre, GRMA, Ludhiana, India and Dericks P Shukla, Indian Institute of Technology Mandi, School of Civil and Environmental Engineering, Mandi, India
 
Complete time series of gap-free velocity fields for Greenland outlet glaciers (1199892)
Timothy C Bartholomaus1, Dakota Pyles1 and Ginny A Catania2, (1)University of Idaho, Moscow, ID, United States, (2)University of Texas at Austin, Austin, TX, United States
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