C040
What Does the Greenland Ice Sheet Care About on Long Timescales? Fusing Geological Records and Numerical Modelling Techniques

Session ID#: 158949

Session Description:
The contemporary record of Greenland Ice Sheet (GIS) change is short, making it difficult to interpret how sensitive the GIS is to climate change and what the effect will be from sustained longer term warming.  Alternatively, when geologic observations of past ice sheet and climatic change are paired with numerical modeling, a more comprehensive understanding can be gained about the large-scale influences of ice-ocean interactions and surface warming on long-term GIS behavior. We welcome papers that investigate the past evolution of the GIS, through numerical modeling, paleoclimatic observations, or a combination with emphasis on model-data comparison.  In particular, we invite studies that address the drivers of GIS change across paleoclimate timescales through methods that reconstruct a) former ice extents, volume, dynamic changes, b) paleoceanographic conditions, c) paleoclimatic conditions, and d) use numerical models, with the aim of better assessing how ice-ocean and atmosphere-ice interactions may dictate long-term GIS change.

Co-Organized:
  • GC - Global Environmental Change
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0726 Ice sheets [CRYOSPHERE]
0798 Modeling [CRYOSPHERE]
1621 Cryospheric change [GLOBAL CHANGE]
4926 Glacial [PALEOCEANOGRAPHY]

Primary Convener:  Joshua K Cuzzone, University of California Los Angeles, Los Angeles, CA, United States
Conveners:  Anna Glueder, Oregon State University, College of Earth Ocean and Atmospheric Sciences, Corvallis, OR, United States, Karita Kajanto, University of Bergen, Earth Science, Bergen, Norway and Andrew James Christ, University of Vermont, Rubenstein School of the Environment and Natural Resources, Burlington, VT, United States
 
Timing and Ice Thickness of the Late Holocene Narsarsuaq Advance, South Greenland, from Lake Sediments (1048957)
Peter Puleo, Northwestern University, Earth and Planetary Sciences, Evanston, United States and Yarrow Axford, Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States
 
A Dynamic Holocene North Greenland Ice Sheet: The Marine Sediment Perspective (Invited) (1093365)
Brendan T Reilly1, Anne E Jennings2, Matt O'Regan3, Henrieka Detlef4, Kelly Hogan5, Anna Glueder6, Martin Jakobsson3, Joseph Stephen Stoner7, Alan C Mix8, Larry A Mayer9, Thomas M Cronin10, Christof Pearce4, Maureen Walczak8 and John T Andrews11, (1)Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States, (2)Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)Stockholm University, Department of Geological Sciences, Stockholm, Sweden, (4)Aarhus University, Department of Geoscience, Aarhus C, Denmark, (5)British Antarctic Survey, Cambridge, United Kingdom, (6)Oregon State University, College of Earth Ocean and Atmospheric Sciences, Corvallis, OR, United States, (7)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (8)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (9)Univ of New Hampshire, Durham, NH, United States, (10)U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA, United States, (11)University of Colorado, INSTAAR, Boulder, CO, United States
 
GreenDated – a Database of All Published Age Constraints from Greenland (1103158)
Nicolaj Krog K Larsen, University of Copenhagen, København K, Denmark, Ole Bennike, GEUS, Copenhagen, Denmark and Kristian Bilgrav Romvig Kristensen, University of Copenhagen, Globe Institute, Copenhagen, Denmark
 
Glacier-Ocean Observatories and Numerical Laboratories – Improving Understanding of the North Greenland Ice Sheet’s Margin Dynamics (Invited) (1137231)
Nina Kirchner, Stockholm University, Department of Physical Geography, and Tarfala Research Station, Stockholm, Sweden and Martin Jakobsson, Stockholm University, Department of Geological Sciences, Stockholm, Sweden
 
Holocene terrestrial ice mass loss precedes floating ice tongue collapse in NW Greenland – Insights from revised high-precision relative sea level curves and cosmogenic exposure ages (1145073)
Anna Glueder1, Alan C Mix2, Jorie Clark3, Brendan T Reilly4, Elizabeth G Ceperley5, Melissa Reusche6, Shaun A Marcott6 and Glenn A. Milne7, (1)Oregon State University, CEOAS, Corvallis, OR, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (3)Oregon State University, Corvallis, OR, United States, (4)Scripps, San Diego, United States, (5)University of Wisconsin Madison, Geoscience, Madison, WI, United States, (6)University of Wisconsin-Madison, Department of Geoscience, Madison, WI, United States, (7)University of Ottawa, Earth and Environmental Sciences, Ottawa, ON, Canada
 
Deglaciation and Holocene paleoceanography of the northeast Greenland Shelf (1145447)
Christof Pearce1, Katrine Juul Andresen1, Joanna Davies1, Henrieka Detlef1, Katrine Elnegaard Hansen1, Tove Nielsen2, Tuomas Junna1, Adrián López Quirós1, Teodora Pados-Dibattista1, Tine Lander Rasmussen3 and Marit-Solveig Seidenkrantz1, (1)Aarhus University, Department of Geoscience, Aarhus C, Denmark, (2)The National Geological Survey of Denmark and Greenland, København, Denmark, (3)Univ Tromso, Tromso, Norway
 
SICOPOLIS-AD v2: An inverse modeling framework for ice sheet modeling enabled by the open-source automatic differentiation tool Tapenade (1180560)
Shreyas Sunil Gaikwad, University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, United States, Sri Hari Krishna Narayanan, Argonne National Laboratory, Mathematics and Computer Science, Argonne, IL, United States, Laurent Hascoet, Institut National de Recherche en Informatique et Automatique, Valbonne, France, Liz C Logan, University of Texas at Austin, Austin, TX, United States, Ralf Greve, Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan and Patrick Heimbach, University of Texas, Austin, Oden Institute for Computational Engineering and Sciences, Austin, United States
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