Results 221 to 230 of about 120,471 (247)

Marine sedimentation at a calving glacier margin

Geological Society of America Bulletin, 2000
A 2-month study at a subpolar, tidewater glacier was conducted at Anvers Island, Antarctic Peninsula (lat 64°S), to improve understanding of sedimentary processes and associated deposits in glacial marine settings. Data collected in the ice-proximal environment were (1) brash ice-size distribution and melt rates to assess sediment source and transport ...
G. M. Ashley, N. D. Smith
openaire   +1 more source

Rapid tidewater glacier retreat: a comparison between Columbia Glacier, Alaska and Patagonian calving glaciers

Global and Planetary Change, 1999
Abstract Time-changes in the terminus positions of Patagonian grounded calving glaciers are studied. The framework for the study is a model of terminus retreat based on observations of Columbia Glacier, Alaska. The interpretation favored in this work is that rapid retreat is caused by the terminus thinning to near flotation and weakening of the ice ...
openaire   +1 more source

Diverse calving patterns linked to glacier geometry

Nature Geoscience, 2013
Iceberg calving—implicated in the retreat of ice shelves—is a complex process constrained by few observations. Numerical simulations suggest that the pattern of iceberg calving is controlled by the geometry of the glacier, and that regions of Greenland and Antarctica may be particularly vulnerable to catastrophic calving-driven retreat.
J. N. Bassis, S. Jacobs
openaire   +1 more source

Recent Changes of a Calving Glacier, Austerdalsisen, Svartisen, Norway

Geografiska Annaler: Series A, Physical Geography, 1986
The size of Austerdalsisen, northern Scandinavia's largest glacier, has decreased considerably since the beginning of the twentieth century, a feature common to other glaciers of the Svartisen area. The most recent changes of the glacier are illustrated by comparisons of photogrammetric maps from 1945, 1954, 1968, 1970, 1979 and 1983.
Theakstone, W. H., Knudsen, N. T.
openaire   +2 more sources

Granular decoherence precedes ice mélange failure and glacier calving at Jakobshavn Isbræ

Nature Geoscience, 2021
R. Cassotto, J. Burton, J. Amundson, M. Fahnestock, M. Truffer   +4 more
semanticscholar   +1 more source

Enormous Glacier Calvings Montage

Ecotone, 2021
openaire   +1 more source

Simulating 3D calving dynamics at Thwaites Glacier

Recent advances in the Elmer/Ice modelling suite have allowed 3D simulation of unrestricted calving geometries at tidewater glaciers such as Jakobshavn Isbrae. We present the first use of this model in an Antarctic setting. The more stochastic nature of calving at Antarctic ice sheets when compared to a Greenlandic setting has discouraged the ...
Iain Wheel, Douglas Benn, Anna Crawford
openaire   +1 more source

Calving of a Large Greenlandic Tidewater Glacier has Complex Links to Meltwater Plumes and Mélange

Journal of Geophysical Research F: Earth Surface, 2021
Samuel J Cook, Poul Christoffersen, Martin Truffer   +2 more
exaly  

Calving speed of Alaska tidewater glaciers, with application to Columbia Glacier

Professional Paper, 1982
C.S. Brown, M.F. Meier, Austin Post
openaire   +1 more source

Automatic glacier calving front delineation on terrasar-x and sentinel-1 sar imagery

IEEE International Geoscience and Remote Sensing Symposium, 2017
L. Krieger, D. Floricioiu
semanticscholar   +1 more source