Results 101 to 110 of about 1,414 (196)

Subcritical crack propagation as a mechanism of crevasse formation and iceberg calving [PDF]

Journal of Glaciology, 2004
AbstractRecent investigations of crevassing on alpine glaciers and ice shelves have been based on linear elastic fracture mechanics (LEFM). However, LEFM is unable to explain some aspects of crevasse formation such as the initiation of crevasse propagation from crystal-scale (mm) microcracks, the slow propagation of large fractures in ice shelves, and ...
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Combining SAR images with an iceberg drift model for improving mass loss estimations caused by iceberg calving - a case study

, 2012
Recent estimations of mass loss caused by iceberg calving are limited to huge icebergs (>18.5km edge length) or are spatially limited. Since the 1970s, the course of huge icebergs is permanently tracked using satellite images by the National Ice Center ...
Rackow, Thomas, Dierking, Wolfgang, Wesche, Christine   +2 more
core  

The integrated ice sheet response to stochastic iceberg calving

Journal of Glaciology
Abstract Iceberg calving is a major source of ice loss from the Antarctic and Greenland ice sheets. However, it is still one of the most poorly understood aspects of ice sheet dynamics, in part due to its variability at a wide range of spatial and temporal scales.
Aminat A. Ambelorun, Alexander A. Robel
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Geographical distribution and volume of Antarctic icebergs derived from ship observation data

Annals of Glaciology, 2017
Information on the occurrence, spatial distribution and morphometric characteristics of Antarctic icebergs is needed in a large number of applications including navigation, heat and freshwater balance calculations, biochemistry of the ocean and ...
Yury A. Romanov, Nina A. Romanova, Peter Romanov   +2 more
doaj   +1 more source

Constructing a New Catalogue of Greenland's Iceberg Calving Events through Seismic Data Analysis and Machine Learning

International audienceThe Greenland ice sheet, a critical component of the global climate system, has played a substantial role in rising sea level, marked by a fourfold increase in mass loss due to iceberg calving between 1992-2000 and 2000-2011 ...
Wetter, Selina, Hibert, Clément, Mangeney, Anne, Stutzmann, Eléonore   +3 more
core   +1 more source

Impact of varying solar angles on Arctic iceberg area retrieval from Sentinel-2 near-infrared data

Annals of Glaciology
Icebergs are part of the glacial mass balance and they interact with the ocean and with sea ice. Optical satellite remote sensing is often used to retrieve the above-waterline area of icebergs.
Henrik Fisser, Anthony P. Doulgeris, Knut V. Høyland   +2 more
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Numerical Simulation of Tsunamis Generated by Iceberg Calving [PDF]

38th IAHR World Congress - "Water: Connecting the World", 2019
FAN CHEN, VALENTIN HELLER, RICCARDO BRIGANTI   +2 more
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Ice front fluctuation, iceberg calving flux and mass balance of Victoria Land glaciers

, 1997
The coast of Victoria Land extends from Williamson Head (69°11'S, 158°E) to McMurdo Sound (77°S, 163°E). A comparison of various documents and images spanning several decades has allowed the ice front fluctuation and the iceberg calving flux during this ...
Frezzotti M.
core  

Reverse glacier motion during iceberg calving and the cause of glacial earthquakes [PDF]

Nearly half of Greenland\u27s mass loss occurs through iceberg calving, but the physical mechanisms operating during calving are poorly known and in situ observations are sparse.
Burton JC, Edwards S, Murray T, Nettles M, Martin I, Aspey R, Rutt I, O'Farrell T, Bauge T, James TD, Selmes N, Cathles LM   +11 more
core  

Calving as a Source of Acute and Persistent Kinetic Energy to Enhance Submarine Melting of Tidewater Glaciers

Geophysical Research Letters
Calving icebergs at tidewater glaciers release large amounts of potential energy. This energy—in principle—could be a source for submarine melting, which scales with near‐terminus water temperature and velocity.
M. F. Shaya, J. D. Nash, E. C. Pettit, J. M. Amundson, R. H. Jackson, D. A. Sutherland, D. Winters   +6 more
doaj   +1 more source