C011
Decoding the surface elevation change signal of glaciers and ice sheets
Session ID#: 249005
Session Description:
The evolving surface elevation of mountain glaciers and ice sheets is measured with ever increasing precision. However, interpreting this signal presents scientific challenges. Atmospheric, oceanic, and ice dynamic processes imprint themselves as spatially, temporally complex patterns of surface-elevation change that may obscure the signature of individual physical forcings. These forcings include surface mass balance, flux divergence, firn densification, bed erosion, subglacial sediment deposition, and subglacial hydrology. Mass continuity provides a framework to isolate and thereby decode these complex and sometimes coupled processes. This session invites contributions that advance our understanding of the discrete physical processes that drive land ice elevation change. Our aim is to showcase creative research that parses distributed glacier and ice-sheet elevation change signals on various spatial and temporal scales, including analyses that leverage mass continuity.
Index Terms:
0720 Glaciers [CRYOSPHERE]
0726 Ice sheets [CRYOSPHERE]
0758 Remote sensing [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]
Primary Convener: Caitlyn Florentine, USGS Northern Rocky Mountain Science Center, Bozeman, United States
Conveners: Lauren C Andrews, NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States and Gwenn E Flowers, Simon Fraser University, Department of Earth Sciences, Burnaby, BC, Canada
Deriving surface mass balance of Gangotri glacier using thickness change-based ice flux divergence approach (1845675)
Anikul Islam, Indian Institute of Technology Jammu, Civil Engineering, Jammu, India, Divyesh Varade, Indian Institute of Technology Jammu, India, civil engineering, Jammu, India and Aliva Nanda, Indian Institute of Technology Mandi, School of Civil and Environmental Engineering, Mandi, India
Combined Altimetry and Modeling Reveals Grounding State Transition of Helheim Glacier (1998-2022) (1866127)
Donglai Yang1, Kristin Poinar2, Beata M Csatho3, Ash Narkevic4 and Winnie Chu1, (1)Georgia Institute of Technology Main Campus, Atlanta, United States, (2)University at Buffalo, Department of Earth Science, Buffalo, United States, (3)University at Buffalo, Department of Earth Sciences, Buffalo, NY, United States, (4)University at Buffalo, Department of Geological Sciences, Buffalo, NY, United States
Attribution of Dynamic Surface Change at Petermann Glacier from ICESat-2 and ITS_LIVE Velocity Using Optimally Smoothed Strain Rate Estimates (1872639)
Christian Taubenberger, Johns Hopkins University, Baltimore, MD, United States, Ciaran J Harman, Johns Hopkins University, Environmental Health and Engineering, Baltimore, MD, United States, Lauren C Andrews, NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States and Denis Felikson, University of Texas at Austin, Austin, United States
Characterizing ice sheet behavior and interactions with forcings using spatiotemporal analysis of remote sensing data (Invited) (1968696)
Beata M Csatho1, Hui Gao2, Sophie Nowicki2, Anton F Schenk2, Eric Kabe Moukete2 and Ivan Parmuzin2, (1)University at Buffalo, Department of Earth Sciences, Buffalo, NY, United States, (2)University at Buffalo, Department of Earth Sciences, Buffalo, United States
Understanding Tidewater Glaciers’ Evolution from Seasonal Observations of Velocity and Surface Elevation Change (1989511)
Hui Gao, University at Buffalo, Department of Earth Sciences, Buffalo, United States, Beata M Csatho, University at Buffalo, Department of Earth Sciences, Buffalo, NY, United States, Natalia Havelund Andersen, DTU Space, Geodesy and Earth observation, Lyngby, Denmark and Denis Felikson, NASA Goddard Space Flight Center, Cryospheric Sciences Laboratory, Greenbelt, United States
