Articles | Volume 16, issue 10
https://doi.org/10.5194/tc-16-3933-2022
https://doi.org/10.5194/tc-16-3933-2022
Research article
 | 
04 Oct 2022
Research article |  | 04 Oct 2022

Drill-site selection for cosmogenic-nuclide exposure dating of the bed of the Greenland Ice Sheet

Jason P. Briner, Caleb K. Walcott, Joerg M. Schaefer, Nicolás E. Young, Joseph A. MacGregor, Kristin Poinar, Benjamin A. Keisling, Sridhar Anandakrishnan, Mary R. Albert, Tanner Kuhl, and Grant Boeckmann

Related authors

An ice-sheet modelling framework for leveraging sub-ice drilling to assess sea level potential applied to Greenland
Benjamin A. Keisling, Joerg M. Schaefer, Robert M. DeConto, Jason P. Briner, Nicolás E. Young, Caleb K. Walcott, Gisela Winckler, Allie Balter-Kennedy, and Sridhar Anandakrishnan
EGUsphere, https://doi.org/10.5194/egusphere-2024-2427,https://doi.org/10.5194/egusphere-2024-2427, 2024
Short summary
New age constraints reveal moraine stabilization thousands of years after deposition during the last deglaciation of western New York, USA
Karlee K. Prince, Jason P. Briner, Caleb K. Walcott, Brooke M. Chase, Andrew L. Kozlowski, Tammy M. Rittenour, and Erica P. Yang
Geochronology, 6, 409–427, https://doi.org/10.5194/gchron-6-409-2024,https://doi.org/10.5194/gchron-6-409-2024, 2024
Short summary
Abrupt warming and alpine glacial retreat through the last deglaciation in Alaska interrupted by modest Northern Hemisphere cooling
Joseph P. Tulenko, Jason P. Briner, Nicolás E. Young, and Joerg M. Schaefer
Clim. Past, 20, 625–636, https://doi.org/10.5194/cp-20-625-2024,https://doi.org/10.5194/cp-20-625-2024, 2024
Short summary
Equilibrium line altitudes of alpine glaciers in Alaska suggest Last Glacial Maximum summer temperature was 2–5 °C lower than during the pre-industrial
Caleb K. Walcott, Jason P. Briner, Joseph P. Tulenko, and Stuart M. Evans
Clim. Past, 20, 91–106, https://doi.org/10.5194/cp-20-91-2024,https://doi.org/10.5194/cp-20-91-2024, 2024
Short summary
Moss kill dates and modeled summer temperature track episodic snowline lowering and ice cap expansion in Arctic Canada through the Common Era
Gifford H. Miller, Simon L. Pendleton, Alexandra Jahn, Yafang Zhong, John T. Andrews, Scott J. Lehman, Jason P. Briner, Jonathan H. Raberg, Helga Bueltmann, Martha Raynolds, Áslaug Geirsdóttir, and John R. Southon
Clim. Past, 19, 2341–2360, https://doi.org/10.5194/cp-19-2341-2023,https://doi.org/10.5194/cp-19-2341-2023, 2023
Short summary

Related subject area

Discipline: Ice sheets | Subject: Greenland
First results of the polar regional climate model RACMO2.4
Christiaan T. van Dalum, Willem Jan van de Berg, Srinidhi N. Gadde, Maurice van Tiggelen, Tijmen van der Drift, Erik van Meijgaard, Lambertus H. van Ulft, and Michiel R. van den Broeke
The Cryosphere, 18, 4065–4088, https://doi.org/10.5194/tc-18-4065-2024,https://doi.org/10.5194/tc-18-4065-2024, 2024
Short summary
Calving front monitoring at a subseasonal resolution: a deep learning application for Greenland glaciers
Erik Loebel, Mirko Scheinert, Martin Horwath, Angelika Humbert, Julia Sohn, Konrad Heidler, Charlotte Liebezeit, and Xiao Xiang Zhu
The Cryosphere, 18, 3315–3332, https://doi.org/10.5194/tc-18-3315-2024,https://doi.org/10.5194/tc-18-3315-2024, 2024
Short summary
Mapping the vertical heterogeneity of Greenland's firn from 2011–2019 using airborne radar and laser altimetry
Anja Rutishauser, Kirk M. Scanlan, Baptiste Vandecrux, Nanna B. Karlsson, Nicolas Jullien, Andreas P. Ahlstrøm, Robert S. Fausto, and Penelope How
The Cryosphere, 18, 2455–2472, https://doi.org/10.5194/tc-18-2455-2024,https://doi.org/10.5194/tc-18-2455-2024, 2024
Short summary
The future of Upernavik Isstrøm through ISMIP6 framework: Sensitivity analysis and Bayesian calibration of ensemble prediction
Eliot Jager, Fabien Gillet-Chaulet, Nicolas Champollion, Romain Millan, Heiko Goelzer, and Jérémie Mouginot
EGUsphere, https://doi.org/10.5194/egusphere-2024-862,https://doi.org/10.5194/egusphere-2024-862, 2024
Short summary
Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates
Guy J. G. Paxman, Stewart S. R. Jamieson, Aisling M. Dolan, and Michael J. Bentley
The Cryosphere, 18, 1467–1493, https://doi.org/10.5194/tc-18-1467-2024,https://doi.org/10.5194/tc-18-1467-2024, 2024
Short summary

Cited articles

Albert, M. R., Slawny, K. R., Boeckmann, G. V., Gibson, C. J., Johnson, J. A., Makinson, K., and Rix, J.: Recent innovations in drilling in ice, in: Advances in Terrestrial and Extraterrestrial Drilling: Ground, Ice, and Underwater, edited by: Bar-Cohen, Y. and Zacny, K., CRC Press, ISBN 9780367674861, 2021. 
Aschwanden, A., Fahnestock Mark, A., Truffer, M., Brinkerhoff Douglas, J., Hock, R., Khroulev, C., Mottram, R., and Khan, S. A.: Contribution of the Greenland Ice Sheet to sea level over the next millennium, Science Advances, 5, eaav9396, https://doi.org/10.1126/sciadv.aav9396, 2019. 
Balco, G.: Glacier Change and Paleoclimate Applications of Cosmogenic-Nuclide Exposure Dating, Annu. Rev. Earth Pl. Sc., 48, 21–48, https://doi.org/10.1146/annurev-earth-081619-052609, 2020. 
Balter-Kennedy, A., Young, N. E., Briner, J. P., Graham, B. L., and Schaefer, J. M.: Centennial- and Orbital-Scale Erosion Beneath the Greenland Ice Sheet Near Jakobshavn Isbræ, J. Geophys. Res.-Earth, 126, e2021JF006429, https://doi.org/10.1029/2021JF006429, 2021. 
Bender, M. L., Burgess, E., Alley, R. B., Barnett, B., and Clow, G. D.: On the nature of the dirty ice at the bottom of the GISP2 ice core, Earth Planet. Sc. Lett., 299, 466–473, https://doi.org/10.1016/j.epsl.2010.09.033, 2010. 
Download
Short summary
The 7.4 m of sea level equivalent stored as Greenland ice is getting smaller every year. The uncertain trajectory of ice loss could be better understood with knowledge of the ice sheet's response to past climate change. Within the bedrock below the present-day ice sheet is an archive of past ice-sheet history. We analyze all available data from Greenland to create maps showing where on the ice sheet scientists can drill, using currently available drills, to obtain sub-ice materials.