The Holocene dynamics of Ryder Glacier and ice tongue in north Greenland

O'Regan, Matt; Cronin, Thomas M.; Reilly, Brendan; Alstrup, Aage Kristian Olsen; Gemery, Laura; Golub, Anna; Mayer, Larry A.; Morlighem, Mathieu; Moros, Matthias; Munk, Ole L.; Nilsson, Johan; Pearce, Christof; Detlef, Henrieka; Stranne, Christian; Vermassen, Flor; West, Gabriel; Jakobsson, Martin

doi:https://doi.org/10.5194/tc-15-4073-2021

Articles | Volume 15, issue 8

https://doi.org/10.5194/tc-15-4073-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-15-4073-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 8

Research article

|

24 Aug 2021

Research article |

| 24 Aug 2021

The Holocene dynamics of Ryder Glacier and ice tongue in north Greenland

Matt O'Regan, Thomas M. Cronin, Brendan Reilly, Aage Kristian Olsen Alstrup, Laura Gemery, Anna Golub, Larry A. Mayer, Mathieu Morlighem, Matthias Moros, Ole L. Munk, Johan Nilsson, Christof Pearce, Henrieka Detlef, Christian Stranne, Flor Vermassen, Gabriel West, and Martin Jakobsson

Supplement

https://doi.org/10.5194/tc-15-4073-2021-supplement

Data sets

Physical properties of marine sediment cores from the Ryder 2019 expedition M. O'Regan https://doi.org/10.17043/oden-ryder-2019-sediment-mscl-1

Geochemical XRF core scanning data of marine sediment cores from the Ryder 2019 expedition M. O'Regan https://doi.org/10.17043/oden-ryder-2019-sediment-xrf-1

High-resolution bathymetry from the Ryder 2019 expedition to Northwest Greenland B. Calder, B. Eriksson, K. Jerram, E. Weidner, F. Holmes, J. Muchowski, A. Prakash, T. Handl, E. Ståhl, L. Mayer, and M. Jakobsson https://doi.org/10.17043/ryder-2019-bathymetry

Oceanographic CTD data from the Ryder 2019 expedition C. Stranne, J. Nilsson, J. Muchowski, and J. Chawarski https://doi.org/10.17043/ryder-2019-ctd,

Short summary

Ryder Glacier is a marine-terminating glacier in north Greenland discharging ice into the Lincoln Sea. Here we use marine sediment cores to reconstruct its retreat and advance behavior through the Holocene. We show that while Sherard Osborn Fjord has a physiography conducive to glacier and ice tongue stability, Ryder still retreated more than 40 km inland from its current position by the Middle Holocene. This highlights the sensitivity of north Greenland's marine glaciers to climate change.