Articles | Volume 18, issue 1
https://doi.org/10.5194/tc-18-103-2024
https://doi.org/10.5194/tc-18-103-2024
Research article
 | 
04 Jan 2024
Research article |  | 04 Jan 2024

Using specularity content to evaluate eight geothermal heat flow maps of Totten Glacier

Yan Huang, Liyun Zhao, Michael Wolovick, Yiliang Ma, and John C. Moore

Related authors

Improved basal drag of the West Antarctic Ice Sheet from L-curve analysis of inverse models utilizing subglacial hydrology simulations
Lea-Sophie Höyns, Thomas Kleiner, Andreas Rademacher, Martin Rückamp, Michael Wolovick, and Angelika Humbert
EGUsphere, https://doi.org/10.5194/egusphere-2024-1251,https://doi.org/10.5194/egusphere-2024-1251, 2024
Short summary
Sensitivity of Totten Glacier dynamics to sliding parameterizations and ice shelf basal melt rates
Yiliang Ma, Liyun Zhao, Rupert Gladstone, Thomas Zwinger, Michael Wolovick, and John C. Moore
EGUsphere, https://doi.org/10.5194/egusphere-2024-1102,https://doi.org/10.5194/egusphere-2024-1102, 2024
Short summary
G6-1.5K-SAI: a new Geoengineering Model Intercomparison Project (GeoMIP) experiment integrating recent advances in solar radiation modification studies
Daniele Visioni, Alan Robock, Jim Haywood, Matthew Henry, Simone Tilmes, Douglas G. MacMartin, Ben Kravitz, Sarah J. Doherty, John Moore, Chris Lennard, Shingo Watanabe, Helene Muri, Ulrike Niemeier, Olivier Boucher, Abu Syed, Temitope S. Egbebiyi, Roland Séférian, and Ilaria Quaglia
Geosci. Model Dev., 17, 2583–2596, https://doi.org/10.5194/gmd-17-2583-2024,https://doi.org/10.5194/gmd-17-2583-2024, 2024
Short summary
Future water storage changes over the Mediterranean, Middle East, and North Africa in response to global warming and stratospheric aerosol intervention
Abolfazl Rezaei, Khalil Karami, Simone Tilmes, and John C. Moore
Earth Syst. Dynam., 15, 91–108, https://doi.org/10.5194/esd-15-91-2024,https://doi.org/10.5194/esd-15-91-2024, 2024
Short summary
The Indonesian Throughflow circulation under solar geoengineering
Chencheng Shen, John C. Moore, Heri Kuswanto, and Liyun Zhao
Earth Syst. Dynam., 14, 1317–1332, https://doi.org/10.5194/esd-14-1317-2023,https://doi.org/10.5194/esd-14-1317-2023, 2023
Short summary

Related subject area

Discipline: Ice sheets | Subject: Numerical Modelling
Biases in ice sheet models from missing noise-induced drift
Alexander A. Robel, Vincent Verjans, and Aminat A. Ambelorun
The Cryosphere, 18, 2613–2623, https://doi.org/10.5194/tc-18-2613-2024,https://doi.org/10.5194/tc-18-2613-2024, 2024
Short summary
Modeling the timing of Patagonian Ice Sheet retreat in the Chilean Lake District from 22–10 ka
Joshua Cuzzone, Matias Romero, and Shaun A. Marcott
The Cryosphere, 18, 1381–1398, https://doi.org/10.5194/tc-18-1381-2024,https://doi.org/10.5194/tc-18-1381-2024, 2024
Short summary
Ice viscosity governs hydraulic fracture causing rapid drainage of supraglacial lakes
Tim Hageman, Jessica Mejía, Ravindra Duddu, and Emilio Martínez-Pañeda
EGUsphere, https://doi.org/10.5194/egusphere-2024-346,https://doi.org/10.5194/egusphere-2024-346, 2024
Short summary
Surging of a Hudson Strait-scale ice stream: subglacial hydrology matters but the process details mostly do not
Matthew Drew and Lev Tarasov
The Cryosphere, 17, 5391–5415, https://doi.org/10.5194/tc-17-5391-2023,https://doi.org/10.5194/tc-17-5391-2023, 2023
Short summary
Regularization and L-curves in ice sheet inverse models: a case study in the Filchner–Ronne catchment
Michael Wolovick, Angelika Humbert, Thomas Kleiner, and Martin Rückamp
The Cryosphere, 17, 5027–5060, https://doi.org/10.5194/tc-17-5027-2023,https://doi.org/10.5194/tc-17-5027-2023, 2023
Short summary

Cited articles

Adusumilli, S., Fricker, H. A., Medley, B., Padman, L., and Siegfried, M. R.: Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves, Nat. Geosci., 13, 616–620, https://doi.org/10.1038/s41561-020-0616-z, 2020. 
An, M., Wiens, D. A., Zhao, Y., Feng, M., Nyblade, A., Kanao, M., Li, Y., Maggi, A., and Lévêque, J.: Temperature, lithosphere-asthenosphere boundary, and heat flux beneath the Antarctic Plate inferred from seismic velocities, J. Geophys. Res.-Sol. Ea., 120, 359–383, https://doi.org/10.1002/2015JB011917, 2015 (data available at: http://www.seismolab.org/model/antarctica/lithosphere/AN1-HF.tar.gz, last access: 11 April 2023). 
Bell, R. E., Studinger, M., Shuman, C. A., Fahnestock, M. A., and Joughin, I.: Large subglacial lakes in East Antarctica at the onset of fast-flowing ice streams, Nature, 445, 904–907, https://doi.org/10.1038/nature05554, 2007. 
Bullard, E. C.: The disturbance of the temperature gradient in the earth's crust by inequalities of height, Geophysical Supplements, Mon. Not. R. Astron. Soc., 4, 360–362, https://doi.org/10.1111/j.1365-246X.1938.tb01760.x, 1938. 
Burton-Johnson, A., Dziadek, R., and Martin, C.: Review article: Geothermal heat flow in Antarctica: current and future directions, The Cryosphere, 14, 3843–3873, https://doi.org/10.5194/tc-14-3843-2020, 2020. 
Download
Short summary
Geothermal heat flux (GHF) is an important factor affecting the basal thermal environment of an ice sheet and crucial for its dynamics. But it is poorly defined for the Antarctic ice sheet. We simulate the basal temperature and basal melting rate with eight different GHF datasets. We use specularity content as a two-sided constraint to discriminate between local wet or dry basal conditions. Two medium-magnitude GHF distribution maps rank well, showing that most of the inland bed area is frozen.