Articles | Volume 14, issue 1
https://doi.org/10.5194/tc-14-211-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-211-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
24 Jan 2020
Research article | Highlight paper |
| 24 Jan 2020
| 24 Jan 2020
A decade of variability on Jakobshavn Isbræ: ocean temperatures pace speed through influence on mélange rigidity
Ian Joughin
CORRESPONDING AUTHOR
Applied Physics Laboratory, University of Washington, Seattle, 98105, USA
David E. Shean
Department of Civil and Environmental Engineering, University of
Washington, Seattle, 98185, USA
Benjamin E. Smith
Applied Physics Laboratory, University of Washington, Seattle, 98105, USA
Dana Floricioiu
Remote Sensing Technology Institute, German Aerospace Center (DLR), Muenchenerstr. 20, 82230 Wessling, Germany
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43 citations as recorded by crossref.
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- Overestimation and adjustment of Antarctic ice flow velocity fields reconstructed from historical satellite imagery R. Li et al. 10.5194/tc-16-737-2022
- AutoTerm: an automated pipeline for glacier terminus extraction using machine learning and a “big data” repository of Greenland glacier termini E. Zhang et al. 10.5194/tc-17-3485-2023
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- Brief communication: Glacier run-off estimation using altimetry-derived basin volume change: case study at Humboldt Glacier, northwest Greenland L. Gray 10.5194/tc-15-1005-2021
- Ilulissat Icefjord Upper‐Layer Circulation Patterns Revealed Through GPS‐Tracked Icebergs S. Baratta et al. 10.1029/2023JC020117
- Modelled dynamic retreat of Kangerlussuaq Glacier, East Greenland, strongly influenced by the consecutive absence of an ice mélange in Kangerlussuaq Fjord J. Barnett et al. 10.1017/jog.2022.70
- Proper orthogonal decomposition of ice velocity identifies drivers of flow variability at Sermeq Kujalleq (Jakobshavn Isbræ) D. Ashmore et al. 10.5194/tc-16-219-2022
- Glacier-specific factors drive differing seasonal and interannual dynamics of Nunatakassaap Sermia and Illullip Sermia, Greenland J. Carr et al. 10.1080/15230430.2023.2186456
- Observing traveling waves in glaciers with remote sensing: new flexible time series methods and application to Sermeq Kujalleq (Jakobshavn Isbræ), Greenland B. Riel et al. 10.5194/tc-15-407-2021
- Brief communication: A roadmap towards credible projections of ice sheet contribution to sea level A. Aschwanden et al. 10.5194/tc-15-5705-2021
- Application of a regularised Coulomb sliding law to Jakobshavn Isbræ, western Greenland M. Trevers et al. 10.5194/tc-18-5101-2024
- The Paris Climate Agreement and future sea-level rise from Antarctica R. DeConto et al. 10.1038/s41586-021-03427-0
- Stabilizing effect of mélange buttressing on the marine ice-cliff instability of the West Antarctic Ice Sheet T. Schlemm et al. 10.5194/tc-16-1979-2022
- Analyzing spatial-temporal variability of ice motion in Northeast Greenland from 1985 to 2018 X. Lu et al. 10.3389/feart.2022.972291
- Impact of seasonal fluctuations of ice velocity on decadal trends observed in Southwest Greenland P. Halas et al. 10.1016/j.rse.2022.113419
- Holocene warmth explains the Little Ice Age advance of Sermeq Kujalleq K. Kajanto et al. 10.1016/j.quascirev.2024.108840
- A new 3D full-Stokes calving algorithm within Elmer/Ice (v9.0) I. Wheel et al. 10.5194/gmd-17-5759-2024
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- Calving dynamics at Jakobshavn Isbrae (Sermeq Kujalleq) controlled by local geometry: insights from a 3D Stokes calving model I. Wheel et al. 10.1017/jog.2024.77
- Helheim Glacier Poised for Dramatic Retreat J. Williams et al. 10.1029/2021GL094546
- Multi-decadal retreat of marine-terminating outlet glaciers in northwest and central-west Greenland T. Black & I. Joughin 10.5194/tc-16-807-2022
- Potential of the Bi-Static SAR Satellite Companion Mission Harmony for Land-Ice Observations A. Kääb et al. 10.3390/rs16162918
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- Atlantic water intrusion triggers rapid retreat and regime change at previously stable Greenland glacier T. Chudley et al. 10.1038/s41467-023-37764-7
- Formation, flow and break-up of ephemeral ice mélange at LeConte Glacier and Bay, Alaska J. Amundson et al. 10.1017/jog.2020.29
- Precursor of disintegration of Greenland's largest floating ice tongue A. Humbert et al. 10.5194/tc-17-2851-2023
- The triggers of the disaggregation of Voyeykov Ice Shelf (2007), Wilkes Land, East Antarctica, and its subsequent evolution J. Arthur et al. 10.1017/jog.2021.45
- Marine outlet glacier dynamics, steady states and steady-state stability O. Sergienko 10.1017/jog.2022.13
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- Extreme High Greenland Blocking Index Leads to the Reversal of Davis and Nares Strait Net Transport Toward the Arctic Ocean P. Myers et al. 10.1029/2021GL094178
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- Granular decoherence precedes ice mélange failure and glacier calving at Jakobshavn Isbræ R. Cassotto et al. 10.1038/s41561-021-00754-9
- Analysis of the Velocity Changes of the Jakobshavn Glacier Based on SAR Imagery M. Łukosz et al. 10.2478/quageo-2022-0007
3 citations as recorded by crossref.
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- Synergistic Use of Single-Pass Interferometry and Radar Altimetry to Measure Mass Loss of NEGIS Outlet Glaciers between 2011 and 2014 L. Krieger et al. 10.3390/rs12060996
- Application of a regularised Coulomb sliding law to Jakobshavn Isbræ, western Greenland M. Trevers et al. 10.5194/tc-18-5101-2024
Discussed (final revised paper)
Latest update: 23 Nov 2024
Short summary
Jakobshavn Isbræ, considered to be Greenland's fastest glacier, has varied its speed and thinned dramatically since the 1990s. Here we examine the glacier's behaviour over the last decade to better understand this behaviour. We find that when the floating ice (mélange) in front of the glacier freezes in place during the winter, it can control the glacier's speed and thinning rate. A recently colder ocean has strengthened this mélange, allowing the glacier to recoup some of its previous losses.
Jakobshavn Isbræ, considered to be Greenland's fastest glacier, has varied its speed and...
