ISMIP6-based Antarctic projections to 2100: simulations with the BISICLES ice sheet model by J. F. O'Neill, T. L. Edwards, D. F. Martin, C. Shafer, S. L. Cornford, H. L. Seroussi, S. Nowicki, M. Adhikari, L. J. Gregoire

“…The Ice Sheet Model Intercomparison for the Coupled Model Intercomparison Phase 6 (ISMIP6) provided projections of the ice sheet contribution to sea level over the 21st century, quantifying uncertainty due to ice sheet model, climate model, emission scenario, and uncertain parameters. …”
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Graph convolutional network as a fast statistical emulator for numerical ice sheet modeling by Younghyun Koo, Maryam Rahnemoonfar

“…Although several deep learning emulators using graphic processing units (GPUs) have been proposed to accelerate ice sheet modeling, most of them rely on convolutional neural networks (CNNs) designed for regular grids. …”
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Exploring grid sensitivity in an ice sheet model: A case study of the Amery Ice Shelf by Qian-Xi Wang, Teng Li, Xiao Cheng, Chen Zhao, Lei Zheng, Qi Liang

Subjects: “…Ice sheet model…”
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Calculations of extreme sea level rise scenarios are strongly dependent on ice sheet model resolution by C. Rosie Williams, Pierre Thodoroff, Robert J. Arthern, James Byrne, J. Scott Hosking, Markus Kaiser, Neil D. Lawrence, Ieva Kazlauskaite

“…Here, we combine traditional model simulations of the Amundsen Sea sector of WAIS with Gaussian process emulation to show that ice-sheet models capable of resolving kilometre-scale basal topography will be needed to assess the probability of extreme scenarios of sea-level rise. …”
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Improvements on the discretisation of boundary conditions to the momentum balance for glacial ice by Constantijn J. Berends, Roderik S. W. van de Wal, Paul A. Zegeling

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Diverse behaviors of marine ice sheets in response to temporal variability of the atmospheric and basal conditions by Olga Sergienko, Duncan John Wingham

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Validating ensemble historical simulations of Upernavik Isstrøm (1985–2019) using observations of surface velocity and elevation by Eliot Jager, Fabien Gillet-Chaulet, Jérémie Mouginot, Romain Millan

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What can radar-based measures of subglacial hydrology tell us about basal shear stress? A case study at Thwaites Glacier, West Antarctica by Rohaiz Haris, Winnie Chu, Alexander Robel

Subjects: “…ice-sheet modeling…”
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New glacier thickness and bed topography maps for Svalbard by W. van Pelt, T. Frank

“…Specifically, we model large glaciers with the Parallel Ice Sheet Model (PISM) at 500 m resolution, while we resolve smaller mountain glaciers at 100 m resolution using the physics-informed deep-learning-based Instructed Glacier Model (IGM). …”
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Theoretical stability of ice shelf basal crevasses with a vertical temperature profile by Niall Bennet Coffey, Ching-Yao Lai, Yongji Wang, W. Roger Buck, Trystan Surawy-Stepney, Anna Elizabeth Hogg

“…Using HFB instead of Zero Stress for cracks in an ice-sheet model would substantially enlarge the predicted fracture depth, reduce the threshold rifting stress and potentially increase the projected rate of ice shelf mass loss.…”
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Recent and future variability of the ice-sheet catchment of Sermeq Kujalleq (Jakobshavn Isbræ), Greenland by Anja Løkkegaard, William Colgan, Andy Aschwanden, Shfaqat Abbas Khan

“…Six observation-based catchment delineations are evaluated along with a 16-member catchment ensemble calculated from ice-sheet models within the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6). …”
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Assessing the suitability of sites near Pine Island Glacier for subglacial bedrock drilling aimed at detecting Holocene retreat–readvance by J. S. Johnson, J. Woodward, I. Nesbitt, K. Winter, S. Campbell, K. A. Nichols, R. A. Venturelli, S. Braddock, B. M. Goehring, B. Hall, D. H. Rood, G. Balco, G. Balco

“…Here we evaluate the suitability for subglacial bedrock drilling of sites in the Hudson Mountains, which are located in the Amundsen Sea sector of West Antarctica. We use an ice sheet model and field data – geological observations, glaciological observations and bedrock samples from nunataks, and ground-penetrating radar from subglacial ridges – to rate each site against four key criteria: (i) presence of ridges extending below the ice sheet, (ii) likelihood of increased exposure of those ridges if the grounding line was inboard of present, (iii) suitability of bedrock for drilling and geochemical analysis, and (iv) accessibility for aircraft and drilling operations. …”
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A topographically controlled tipping point for complete Greenland ice sheet melt by M. Petrini, M. Petrini, M. D. W. Scherrenberg, L. Muntjewerf, L. Muntjewerf, M. Vizcaino, R. Sellevold, G. R. Leguy, W. H. Lipscomb, H. Goelzer

“…To this end, we force the Community Ice Sheet Model v.2 (CISM2) by cycling different SMB climatologies previously calculated at multiple elevation classes with the Community Earth System Model v.2 (CESM2) in a two-way coupled CESM2–CISM2 transient simulation of the global climate and GrIS under high <span class="inline-formula">CO₂</span> forcing. …”
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Dated radar-stratigraphy between Dome A and South Pole, East Antarctica: old ice potential and ice sheet history by Rebecca J. Sanderson, Neil Ross, Kate Winter, Robert G. Bingham, S. Louise Callard, Tom A. Jordan, Duncan A. Young

“…Our traced IRHs underpin the wider objective to develop a continental-scale database of IRHs which will constrain and validate future ice-sheet modelling and the history of the Antarctic ice sheet.…”
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Present-day mass loss rates are a precursor for West Antarctic Ice Sheet collapse by T. van den Akker, W. H. Lipscomb, G. R. Leguy, J. Bernales, C. J. Berends, W. J. van de Berg, R. S. W. van de Wal, R. S. W. van de Wal

“…Future projections of these mass loss trends are often estimated using numerical ice sheet models, and recent studies have highlighted the need for models to be benchmarked against present-day observed mass change rates. …”
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Sustainability of regional Antarctic ice sheets under late Eocene seasonal atmospheric conditions by D. H. A. Vermeulen, M. L. J. Baatsen, A. S. von der Heydt

“…These phases signal a shift from the warm middle to late Eocene greenhouse climate to cooler conditions, with global surface air temperatures decreasing by 3–5 °C and the emergence of the first continent-wide Antarctic ice sheet (AIS). While ice sheet modelling suggests that ice sheet growth can be triggered by declining <span class="inline-formula"><i>p</i></span>CO<span class="inline-formula">₂</span>, it remains unclear how this transition was initiated, particularly the first growth phase that appears to be related to oceanic and atmospheric cooling rather than ice sheet growth. …”
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Assessment of the southern polar and subpolar warming in the PMIP4 last interglacial simulations using paleoclimate data syntheses by Q. Gao, Q. Gao, Q. Gao, E. Capron, L. C. Sime, R. H. Rhodes, R. Sivankutty, X. Zhang, B. L. Otto-Bliesner, M. Werner

“…The hosed 128 ka HadCM3 simulation captures much of the warming and sea ice loss shown in the four data syntheses at 127 ka relative to preindustrial: south of 40° S, modeled annual sea surface temperature (SST) rises by 1.3 <span class="inline-formula">±</span> 0.6 °C, while reconstructed average anomalies range from 2.2 to 2.7 °C; modeled summer SST increases by 1.1 <span class="inline-formula">±</span> 0.7 °C, close to the 1.2–2.2 °C reconstructed average anomalies; September sea ice area (SIA) is reduced by 40 <span class="inline-formula"><i>%</i></span>, similar to the reconstructed 40 <span class="inline-formula">%</span> reduction of sea ice concentration (SIC); over the Antarctic Ice Sheet, modeled annual surface air temperature (SAT) increases by 2.6 <span class="inline-formula">±</span> 0.4 °C, even larger than reconstructed average anomalies of 2.2 °C. …”
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