Results 91 to 100 of about 32,496 (283)

Are seasonal calving dynamics forced by buttressing from ice mélange or undercutting by melting? Outcomes from full-Stokes simulations of Store Glacier, West Greenland [PDF]

open access: yesThe Cryosphere, 2014
We use a full-Stokes 2-D model (Elmer/Ice) to investigate the flow and calving dynamics of Store Glacier, a fast-flowing outlet glacier in West Greenland.
J. Todd, P. Christoffersen
doaj   +1 more source

Deep Multi-stream Network for Video-based Calving Sign Detection [PDF]

open access: yesarXiv, 2023
We have designed a deep multi-stream network for automatically detecting calving signs from video. Calving sign detection from a camera, which is a non-contact sensor, is expected to enable more efficient livestock management. As large-scale, well-developed data cannot generally be assumed when establishing calving detection systems, the basis for ...
arxiv  

Viscous and viscoelastic stress states at the calving front of Antarctic ice shelves [PDF]

open access: yesAnnals of Glaciology, 2016
ABSTRACTCalving mechanisms are still poorly understood and stress states in the vicinity of ice-shelf fronts are insufficiently known for the development of physically motivated calving laws that match observations. A calving model requires the knowledge of maximum tensile stresses.
Christmann, Julia   +3 more
openaire   +4 more sources

De Geer moraine internal architecture based on sedimentological and geophysical investigations and implications for ice‐marginal reconstructions

open access: yesBoreas, EarlyView.
De Geer moraines may act as valuable ice‐marginal indicators; however, to date, their variable mode of formation has presented challenges for this utility. Here, we present sedimentological and ground penetrating radar data of DGMs located in southwest Finland.
Gwyneth E. Rivers   +5 more
wiley   +1 more source

Quantifying flow and stress in ice mélange, the world’s largest granular material. [PDF]

open access: yes, 2018
Tidewater glacier fjords are often filled with a collection of calved icebergs, brash ice, and sea ice. For glaciers with high calving rates, this “m ́elange” of ice can be jam-packed, so that the flow of ice fragments is mostly determined by ...
Amundson, Jason M.   +4 more
core  

Evaluation of existing and new methods of tracking glacier terminus change [PDF]

open access: yes, 2014
ACKNOWLEDGEMENTS The authors thank two anonymous reviewers for constructive comments that helped to improve the manuscript. This research was financially supported by J.M.L.’s PhD funding from UK Natural Environment Research Council grant No.
Brice R. Rea   +4 more
core   +2 more sources

Tides modulate crevasse opening prior to a major calving event at Bowdoin Glacier, Northwest Greenland

open access: yesJournal of Glaciology, 2020
Retreat of calving glaciers worldwide has contributed substantially to sea-level rise in recent decades. Mass loss by calving contributes significantly to the uncertainty of sea-level rise projections.
Eef van Dongen   +8 more
doaj   +1 more source

Lateglacial and Holocene glacier variations in an active volcanic area, northern Jan Mayen (Nord‐Jan), Norway

open access: yesBoreas, EarlyView.
Glacier evolution and environmental changes in the northern Jan‐Mayen from the early deglaciation and well into the Holocene are discussed. Results are based on a large chronological dataset (TCN and radiocarbon dates), integrated with field data on glacial landforms and sediments, including the use of GPR.
Astrid Lyså   +5 more
wiley   +1 more source

Update of annual calving front lines for 47 marine terminating outlet glaciers in Greenland (1999–2018)

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2019
The Greenland ice sheet has been losing mass in response to increased surface melting (Khan et al. 2015; van den Broeke et al. 2017) as well as discharge of ice from marine terminating outlet glaciers (van den Broeke et al. 2009; Box et al. 2018). Marine
Jonas K Andersen   +17 more
doaj   +1 more source

Iceberg calving from the Amery Ice Shelf, East Antarctica [PDF]

open access: yesAnnals of Glaciology, 2002
AbstractWe investigate the iceberg-calving cycle of the Amery Ice Shelf (AIS), East Antarctica, using evidence acquired between 1936 and 2000. The most recent major iceberg-calving event occurred between late 1963 and early 1964, when a large berg totalling about 10 000 km2 in area broke from the ice front.
Helen A. Fricker   +3 more
openaire   +2 more sources

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