Evidence map›Paper›PMID 33990322›Full record

ArticleScience advances2021

Thermodynamics of a fast-moving Greenlandic outlet glacier revealed by fiber-optic distributed temperature sensing.

Robert Law, Poul Christoffersen, Bryn Hubbard, Samuel H Doyle, Thomas R Chudley, Charlotte M Schoonman, Marion Bougamont, Bas des Tombe, Bart Schilperoort, Cedric Kechavarzi and 2 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
4.0field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Robert LawScott Polar Research Institute, University of Cambridge, Cambridge, UK. rl491@cam.ac.uk.ORCID http://orcid.org/0000-0003-0067-5537
Poul ChristoffersenScott Polar Research Institute, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0003-2643-8724
Bryn HubbardCentre for Glaciology, Aberystwyth University, Aberystwyth, UK.ORCID http://orcid.org/0000-0002-3565-3875
Samuel H DoyleCentre for Glaciology, Aberystwyth University, Aberystwyth, UK.ORCID http://orcid.org/0000-0002-0853-431X
Thomas R ChudleyScott Polar Research Institute, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0001-8547-1132
Charlotte M SchoonmanScott Polar Research Institute, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0002-2882-9916
Marion BougamontScott Polar Research Institute, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0001-7196-4171
Bas des TombeFaculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands.ORCID http://orcid.org/0000-0002-3302-7387
Bart SchilperoortFaculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands.ORCID http://orcid.org/0000-0003-4487-9822
Cedric KechavarziCentre for Smart Infrastructure and Construction, Department of Engineering, University of Cambridge, Cambridge, UK.
Adam BoothSchool of Earth and Environment, University of Leeds, Leeds, UK.ORCID http://orcid.org/0000-0002-8166-9608
Tun Jan YoungScott Polar Research Institute, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0001-5865-3459
University of Cambridge · GBAberystwyth University · GBDelft University of Technology · NLUniversity of Leeds · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Measurements of ice temperature provide crucial constraints on ice viscosity and the thermodynamic processes occurring within a glacier. However, such measurements are presently limited by a small number of relatively coarse-spatial-resolution borehole records, especially for ice sheets. Here, we advance our understanding of glacier thermodynamics with an exceptionally high-vertical-resolution (~0.65 m), distributed-fiber-optic temperature-sensing profile from a 1043-m borehole drilled to the base of Sermeq Kujalleq (Store Glacier), Greenland. We report substantial but isolated strain heating within interglacial-phase ice at 208 to 242 m depth together with strongly heterogeneous ice deformation in glacial-phase ice below 889 m. We also observe a high-strain interface between glacial- and interglacial-phase ice and a 73-m-thick temperate basal layer, interpreted as locally formed and important for the glacier's fast motion. These findings demonstrate notable spatial heterogeneity, both vertically and at the catchment scale, in the conditions facilitating the fast motion of marine-terminating glaciers in Greenland.

Identifiers

PMID33990322
PMCPMC8121432
OpenAlexW3163528672

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.