C029
Processes On, Within and Around Debris-Covered Glaciers
Session ID#: 75080
Session Description:
Debris-covered glaciers, characterized by a continuous layer of rock material on their tongue, are common in high-relief, highly-erodible mountain ranges. The extent of debris layers appears to be expanding as glaciers respond to a warming climate, potentially insulating more ice and reducing melt. Although considerable progress has been made in recent years in understanding the behaviour of debris-covered glaciers, many fundamental processes on, within and surrounding this glacier type remain ill-understood. A wide range of expertise is required, as debris-covered glacier processes cross the fields of glaciology, geology, geomorphology, hydrology and meteorology in unique ways. In particular, this session aims to improve process understanding related to debris-type glaciers by bringing together contributions that include, but are not limited to i) models and concepts of surface processes, glacier dynamics or energy balance, and ii) in-situ and remote sensing observations that range from the very small to glacial and landscape-wide scales.
Co-Organized:
Index Terms:
0710 Periglacial processes [CRYOSPHERE]
0776 Glaciology [CRYOSPHERE]
1815 Erosion [HYDROLOGY]
1824 Geomorphology: general [HYDROLOGY]
Primary Convener: Pascal Buri, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States
Conveners: Robert S Anderson, INSTAAR and Department of Geological Sciences, Boulder, CO, United States, Caroline Aubry-Wake, University of Saskatchewan, Centre for Hydrology, Saskatoon, SK, Canada and Jakob F Steiner, Utrecht University, Department of Physical Geography, Utrecht, Netherlands
Primary Liaison: Pascal Buri, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States
Resolving key processes controlling the dynamic evolution of debris-covered Himalayan glaciers (Invited) (490762)
Ann V Rowan1, David L Egholm2, Duncan J Quincey3, Bryn P Hubbard4, Evan S Miles5 and Katie E Miles4, (1)University of Sheffield, Department of Geography, Sheffield, S10, United Kingdom, (2)Aarhus University, Aarhus, Denmark, (3)University of Leeds, School of Geography, Leeds, United Kingdom, (4)Aberystwyth University, Department of Geography and Earth Sciences, Aberystwyth, United Kingdom, (5)WSL Swiss Federal Institute for Forest, Snow and Landscape Research, High Mountain Glaciers and Hydrology (HIMAL), Birmensdorf, Switzerland
Resolving the influence of climatic forcing on rock glacier dynamics: a numerical modelling approach (513667)
Alessandro Cicoira, Zurich, Zurich, Switzerland, Jan Beutel, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland and Andreas Vieli, University of Zurich, Zurich, Switzerland
From the Equator to the Pole: How Latitude Affects Incident Shortwave Radiation on Supraglacial Ice Cliffs (519320)
Pascal Buri1, Robert S Anderson2, Leif Anderson3, William H Armstrong Jr4 and Martin Truffer1, (1)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, (2)INSTAAR and Department of Geological Sciences, Boulder, CO, United States, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (4)Appalachian State University, Geological and Environmental Sciences, Boone, NC, United States
Historical Reconstruction and Numerical Modelling of Zmuttgletscher, Swiss Alps, Since the Little Ice Age (593266)
James Ferguson1, Nico Mölg1, Tobias Bolch2 and Andreas Vieli1, (1)University of Zurich, Zurich, Switzerland, (2)University of St Andrews, School of Geography and Sustainable Development, St Andrews, United Kingdom
Crystallographic preferred orientation in warm, coarse-grained ice: a case study, Storglaciären, Sweden (594697)
Morgan Monz1, Peter J Hudleston1, Zachary D Michels1, David John Prior2, Sheng Fan2, Marianne Negrini2, Pat Langhorne2 and Chao Qi3, (1)University of Minnesota Twin Cities, Earth and Environmental Sciences, Minneapolis, MN, United States, (2)University of Otago, Dunedin, New Zealand, (3)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Ancient Ice Preserved Under A Meter-Thick Layer Of Debris; Ong Valley, Transantarctic Mountains, Antarctica (617219)
Jaakko Putkonen1, Marie Bergelin1, Greg Balco2, Daniel J Morgan3 and Ronald Matheney1, (1)University of North Dakota, Geology and Geological Engineering, Grand Forks, ND, United States, (2)Berkeley Geochronology Center, Berkeley, CA, United States, (3)Vanderbilt University, Earth and Environmental Sciences, Nashville, TN, United States
Evaluation of inter-annual to decadal changes in tropical Andean stream chemistry below debris-covered glaciers (630936)
Emilio Ian Mateo, Ohio State University Main Campus, Columbus, United States, Bryan G Mark, OSU-Byrd Polar Rsrch Ctr, Columbus, OH, United States, Jeffrey M McKenzie, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada and Michel Baraer, Ecole de Technologie Superieur, Montreal, QC, Canada
The Transition from Alpine Glacier to Rock Glacier: A Case Study at Sulphur Creek, Wyoming (634536)
Eric Petersen1, John W. Holt2, Joseph Levy3, Tyler McGrew Meng1, Brandon Tober4, Michael Steven Christoffersen1, Benjamin Thomas Cardenas5 and Cassie M Stuurman6, (1)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (2)University of Arizona, Tucson, United States, (3)Colgate University, Hamilton, NY, United States, (4)University of Arizona, Geosciences, Tucson, AZ, United States, (5)University of Texas at Austin, Austin, TX, United States, (6)European Space Agency, Noordijk, Netherlands
