Results 71 to 80 of about 946 (136)

Characterization of seasonal glacial seismicity from a single-station on-ice record at Holtedahlfonna, Svalbard

Annals of Glaciology, 2019
Glacial seismicity provides important insights into glacier dynamic processes. We study the temporal distribution of cryogenic seismic signals (icequakes) at Holtedahlfonna, Svalbard, between April and August 2016 using a single three-component sensor ...
Andreas Köhler, Valerie Maupin, Christopher Nuth, Ward van Pelt   +3 more
doaj   +1 more source

Structural glaciology of Isunguata Sermia, West Greenland

Journal of Maps, 2018
We present a 1:42,000 scale map of Isunguata Sermia, a land-terminating outlet glacier draining the western-sector of the Greenland Ice Sheet. Structure-from-Motion software applied to ∼3,600 aerial images collected by a fixed-wing unmanned aerial ...
Christine Jones, Jonathan Ryan, Tom Holt, Alun Hubbard   +3 more
doaj   +1 more source

Crevasse density, orientation and temporal variability at Narsap Sermia, Greenland. [PDF]

J Glaciol, 2023
Van Wyk de Vries M, Lea JM, Ashmore DW.
europepmc   +1 more source

Direct observations of melting, freezing, and ocean circulation in an ice shelf basal crevasse. [PDF]

Sci Adv, 2023
Washam P, Lawrence JD, Stevens CL, Hulbe CL, Horgan HJ, Robinson NJ, Stewart CL, Spears A, Quartini E, Hurwitz B, Meister MR, Mullen AD, Dichek DJ, Bryson F, Schmidt BE.   +14 more
europepmc   +1 more source

Rift propagation signals the last act of the Thwaites Eastern Ice Shelf despite low basal melt rates

Journal of Glaciology
Rift propagation, rather than basal melt, drives the destabilization and disintegration of the Thwaites Eastern Ice Shelf. Since 2016, rifts have episodically advanced throughout the central ice-shelf area, with rapid propagation events occurring during ...
Christian T. Wild, Samuel B. Kachuck, Adrian Luckman, Karen E. Alley, Meghan A. Sharp, Haylee Smith, Scott W. Tyler, Christopher Kratt, Tiago S. Dotto, Daniel Price, Keith W. Nicholls, Suzanne L. Bevan, Gabriela Collao-Barrios, Atsuhiro Muto, Martin Truffer, Ted A. Scambos, Karen J. Heywood, Erin C. Pettit, the TARSAN team   +18 more
doaj   +1 more source

Crevasse refreezing and signatures of retreat observed at Kamb Ice Stream grounding zone. [PDF]

Nat Geosci, 2023
Lawrence JD, Washam PM, Stevens C, Hulbe C, Horgan HJ, Dunbar G, Calkin T, Stewart C, Robinson N, Mullen AD, Meister MR, Hurwitz BC, Quartini E, Dichek DJG, Spears A, Schmidt BE.   +15 more
europepmc   +1 more source

Theoretical stability of ice shelf basal crevasses with a vertical temperature profile

Journal of Glaciology
Basal crevasses threaten the stability of ice shelves through the potential to form rifts and calve icebergs. Furthermore, it is important to determine the dependence of crevasse stability on temperature due to large vertical temperature variations on ...
Niall Bennet Coffey, Ching-Yao Lai, Yongji Wang, W. Roger Buck, Trystan Surawy-Stepney, Anna Elizabeth Hogg   +5 more
doaj   +1 more source

Heterogeneous melting near the Thwaites Glacier grounding line. [PDF]

Nature, 2023
Schmidt BE, Washam P, Davis PED, Nicholls KW, Holland DM, Lawrence JD, Riverman KL, Smith JA, Spears A, Dichek DJG, Mullen AD, Clyne E, Yeager B, Anker P, Meister MR, Hurwitz BC, Quartini ES, Bryson FE, Basinski-Ferris A, Thomas C, Wake J, Vaughan DG, Anandakrishnan S, Rignot E, Paden J, Makinson K.   +25 more
europepmc   +1 more source

Fracture criteria and tensile strength for natural glacier ice calibrated from remote sensing observations of Antarctic ice shelves

Journal of Glaciology
The conditions under which ice fractures and calves icebergs from Antarctic ice shelves are poorly understood due largely to a lack of relevant observations. Though previous studies have estimated the stresses at which ice fractures in the laboratory and
Sarah Wells-Moran, Meghana Ranganathan, Brent Minchew   +2 more
doaj   +1 more source

Glacial Water: A Dynamic Microbial Medium. [PDF]

Microorganisms, 2023
Varliero G, Lebre PH, Frey B, Fountain AG, Anesio AM, Cowan DA.   +5 more
europepmc   +1 more source